have an ownerDocument with no reference to the body\n\n\n return element != null && (_element$ownerDocumen = element.ownerDocument) != null && _element$ownerDocumen.body ? element.ownerDocument : document;\n}\nfunction isCursorOutsideInteractiveBorder(popperTreeData, event) {\n var clientX = event.clientX,\n clientY = event.clientY;\n return popperTreeData.every(function (_ref) {\n var popperRect = _ref.popperRect,\n popperState = _ref.popperState,\n props = _ref.props;\n var interactiveBorder = props.interactiveBorder;\n var basePlacement = getBasePlacement(popperState.placement);\n var offsetData = popperState.modifiersData.offset;\n\n if (!offsetData) {\n return true;\n }\n\n var topDistance = basePlacement === 'bottom' ? offsetData.top.y : 0;\n var bottomDistance = basePlacement === 'top' ? offsetData.bottom.y : 0;\n var leftDistance = basePlacement === 'right' ? offsetData.left.x : 0;\n var rightDistance = basePlacement === 'left' ? offsetData.right.x : 0;\n var exceedsTop = popperRect.top - clientY + topDistance > interactiveBorder;\n var exceedsBottom = clientY - popperRect.bottom - bottomDistance > interactiveBorder;\n var exceedsLeft = popperRect.left - clientX + leftDistance > interactiveBorder;\n var exceedsRight = clientX - popperRect.right - rightDistance > interactiveBorder;\n return exceedsTop || exceedsBottom || exceedsLeft || exceedsRight;\n });\n}\nfunction updateTransitionEndListener(box, action, listener) {\n var method = action + \"EventListener\"; // some browsers apparently support `transition` (unprefixed) but only fire\n // `webkitTransitionEnd`...\n\n ['transitionend', 'webkitTransitionEnd'].forEach(function (event) {\n box[method](event, listener);\n });\n}\n/**\n * Compared to xxx.contains, this function works for dom structures with shadow\n * dom\n */\n\nfunction actualContains(parent, child) {\n var target = child;\n\n while (target) {\n var _target$getRootNode;\n\n if (parent.contains(target)) {\n return true;\n }\n\n target = target.getRootNode == null ? void 0 : (_target$getRootNode = target.getRootNode()) == null ? void 0 : _target$getRootNode.host;\n }\n\n return false;\n}\n\nvar currentInput = {\n isTouch: false\n};\nvar lastMouseMoveTime = 0;\n/**\n * When a `touchstart` event is fired, it's assumed the user is using touch\n * input. We'll bind a `mousemove` event listener to listen for mouse input in\n * the future. This way, the `isTouch` property is fully dynamic and will handle\n * hybrid devices that use a mix of touch + mouse input.\n */\n\nfunction onDocumentTouchStart() {\n if (currentInput.isTouch) {\n return;\n }\n\n currentInput.isTouch = true;\n\n if (window.performance) {\n document.addEventListener('mousemove', onDocumentMouseMove);\n }\n}\n/**\n * When two `mousemove` event are fired consecutively within 20ms, it's assumed\n * the user is using mouse input again. `mousemove` can fire on touch devices as\n * well, but very rarely that quickly.\n */\n\nfunction onDocumentMouseMove() {\n var now = performance.now();\n\n if (now - lastMouseMoveTime < 20) {\n currentInput.isTouch = false;\n document.removeEventListener('mousemove', onDocumentMouseMove);\n }\n\n lastMouseMoveTime = now;\n}\n/**\n * When an element is in focus and has a tippy, leaving the tab/window and\n * returning causes it to show again. For mouse users this is unexpected, but\n * for keyboard use it makes sense.\n * TODO: find a better technique to solve this problem\n */\n\nfunction onWindowBlur() {\n var activeElement = document.activeElement;\n\n if (isReferenceElement(activeElement)) {\n var instance = activeElement._tippy;\n\n if (activeElement.blur && !instance.state.isVisible) {\n activeElement.blur();\n }\n }\n}\nfunction bindGlobalEventListeners() {\n document.addEventListener('touchstart', onDocumentTouchStart, TOUCH_OPTIONS);\n window.addEventListener('blur', onWindowBlur);\n}\n\nvar isBrowser = typeof window !== 'undefined' && typeof document !== 'undefined';\nvar isIE11 = isBrowser ? // @ts-ignore\n!!window.msCrypto : false;\n\nfunction createMemoryLeakWarning(method) {\n var txt = method === 'destroy' ? 'n already-' : ' ';\n return [method + \"() was called on a\" + txt + \"destroyed instance. This is a no-op but\", 'indicates a potential memory leak.'].join(' ');\n}\nfunction clean(value) {\n var spacesAndTabs = /[ \\t]{2,}/g;\n var lineStartWithSpaces = /^[ \\t]*/gm;\n return value.replace(spacesAndTabs, ' ').replace(lineStartWithSpaces, '').trim();\n}\n\nfunction getDevMessage(message) {\n return clean(\"\\n %ctippy.js\\n\\n %c\" + clean(message) + \"\\n\\n %c\\uD83D\\uDC77\\u200D This is a development-only message. It will be removed in production.\\n \");\n}\n\nfunction getFormattedMessage(message) {\n return [getDevMessage(message), // title\n 'color: #00C584; font-size: 1.3em; font-weight: bold;', // message\n 'line-height: 1.5', // footer\n 'color: #a6a095;'];\n} // Assume warnings and errors never have the same message\n\nvar visitedMessages;\n\nif (process.env.NODE_ENV !== \"production\") {\n resetVisitedMessages();\n}\n\nfunction resetVisitedMessages() {\n visitedMessages = new Set();\n}\nfunction warnWhen(condition, message) {\n if (condition && !visitedMessages.has(message)) {\n var _console;\n\n visitedMessages.add(message);\n\n (_console = console).warn.apply(_console, getFormattedMessage(message));\n }\n}\nfunction errorWhen(condition, message) {\n if (condition && !visitedMessages.has(message)) {\n var _console2;\n\n visitedMessages.add(message);\n\n (_console2 = console).error.apply(_console2, getFormattedMessage(message));\n }\n}\nfunction validateTargets(targets) {\n var didPassFalsyValue = !targets;\n var didPassPlainObject = Object.prototype.toString.call(targets) === '[object Object]' && !targets.addEventListener;\n errorWhen(didPassFalsyValue, ['tippy() was passed', '`' + String(targets) + '`', 'as its targets (first) argument. Valid types are: String, Element,', 'Element[], or NodeList.'].join(' '));\n errorWhen(didPassPlainObject, ['tippy() was passed a plain object which is not supported as an argument', 'for virtual positioning. Use props.getReferenceClientRect instead.'].join(' '));\n}\n\nvar pluginProps = {\n animateFill: false,\n followCursor: false,\n inlinePositioning: false,\n sticky: false\n};\nvar renderProps = {\n allowHTML: false,\n animation: 'fade',\n arrow: true,\n content: '',\n inertia: false,\n maxWidth: 350,\n role: 'tooltip',\n theme: '',\n zIndex: 9999\n};\nvar defaultProps = Object.assign({\n appendTo: TIPPY_DEFAULT_APPEND_TO,\n aria: {\n content: 'auto',\n expanded: 'auto'\n },\n delay: 0,\n duration: [300, 250],\n getReferenceClientRect: null,\n hideOnClick: true,\n ignoreAttributes: false,\n interactive: false,\n interactiveBorder: 2,\n interactiveDebounce: 0,\n moveTransition: '',\n offset: [0, 10],\n onAfterUpdate: function onAfterUpdate() {},\n onBeforeUpdate: function onBeforeUpdate() {},\n onCreate: function onCreate() {},\n onDestroy: function onDestroy() {},\n onHidden: function onHidden() {},\n onHide: function onHide() {},\n onMount: function onMount() {},\n onShow: function onShow() {},\n onShown: function onShown() {},\n onTrigger: function onTrigger() {},\n onUntrigger: function onUntrigger() {},\n onClickOutside: function onClickOutside() {},\n placement: 'top',\n plugins: [],\n popperOptions: {},\n render: null,\n showOnCreate: false,\n touch: true,\n trigger: 'mouseenter focus',\n triggerTarget: null\n}, pluginProps, renderProps);\nvar defaultKeys = Object.keys(defaultProps);\nvar setDefaultProps = function setDefaultProps(partialProps) {\n /* istanbul ignore else */\n if (process.env.NODE_ENV !== \"production\") {\n validateProps(partialProps, []);\n }\n\n var keys = Object.keys(partialProps);\n keys.forEach(function (key) {\n defaultProps[key] = partialProps[key];\n });\n};\nfunction getExtendedPassedProps(passedProps) {\n var plugins = passedProps.plugins || [];\n var pluginProps = plugins.reduce(function (acc, plugin) {\n var name = plugin.name,\n defaultValue = plugin.defaultValue;\n\n if (name) {\n var _name;\n\n acc[name] = passedProps[name] !== undefined ? passedProps[name] : (_name = defaultProps[name]) != null ? _name : defaultValue;\n }\n\n return acc;\n }, {});\n return Object.assign({}, passedProps, pluginProps);\n}\nfunction getDataAttributeProps(reference, plugins) {\n var propKeys = plugins ? Object.keys(getExtendedPassedProps(Object.assign({}, defaultProps, {\n plugins: plugins\n }))) : defaultKeys;\n var props = propKeys.reduce(function (acc, key) {\n var valueAsString = (reference.getAttribute(\"data-tippy-\" + key) || '').trim();\n\n if (!valueAsString) {\n return acc;\n }\n\n if (key === 'content') {\n acc[key] = valueAsString;\n } else {\n try {\n acc[key] = JSON.parse(valueAsString);\n } catch (e) {\n acc[key] = valueAsString;\n }\n }\n\n return acc;\n }, {});\n return props;\n}\nfunction evaluateProps(reference, props) {\n var out = Object.assign({}, props, {\n content: invokeWithArgsOrReturn(props.content, [reference])\n }, props.ignoreAttributes ? {} : getDataAttributeProps(reference, props.plugins));\n out.aria = Object.assign({}, defaultProps.aria, out.aria);\n out.aria = {\n expanded: out.aria.expanded === 'auto' ? props.interactive : out.aria.expanded,\n content: out.aria.content === 'auto' ? props.interactive ? null : 'describedby' : out.aria.content\n };\n return out;\n}\nfunction validateProps(partialProps, plugins) {\n if (partialProps === void 0) {\n partialProps = {};\n }\n\n if (plugins === void 0) {\n plugins = [];\n }\n\n var keys = Object.keys(partialProps);\n keys.forEach(function (prop) {\n var nonPluginProps = removeProperties(defaultProps, Object.keys(pluginProps));\n var didPassUnknownProp = !hasOwnProperty(nonPluginProps, prop); // Check if the prop exists in `plugins`\n\n if (didPassUnknownProp) {\n didPassUnknownProp = plugins.filter(function (plugin) {\n return plugin.name === prop;\n }).length === 0;\n }\n\n warnWhen(didPassUnknownProp, [\"`\" + prop + \"`\", \"is not a valid prop. You may have spelled it incorrectly, or if it's\", 'a plugin, forgot to pass it in an array as props.plugins.', '\\n\\n', 'All props: https://atomiks.github.io/tippyjs/v6/all-props/\\n', 'Plugins: https://atomiks.github.io/tippyjs/v6/plugins/'].join(' '));\n });\n}\n\nvar innerHTML = function innerHTML() {\n return 'innerHTML';\n};\n\nfunction dangerouslySetInnerHTML(element, html) {\n element[innerHTML()] = html;\n}\n\nfunction createArrowElement(value) {\n var arrow = div();\n\n if (value === true) {\n arrow.className = ARROW_CLASS;\n } else {\n arrow.className = SVG_ARROW_CLASS;\n\n if (isElement(value)) {\n arrow.appendChild(value);\n } else {\n dangerouslySetInnerHTML(arrow, value);\n }\n }\n\n return arrow;\n}\n\nfunction setContent(content, props) {\n if (isElement(props.content)) {\n dangerouslySetInnerHTML(content, '');\n content.appendChild(props.content);\n } else if (typeof props.content !== 'function') {\n if (props.allowHTML) {\n dangerouslySetInnerHTML(content, props.content);\n } else {\n content.textContent = props.content;\n }\n }\n}\nfunction getChildren(popper) {\n var box = popper.firstElementChild;\n var boxChildren = arrayFrom(box.children);\n return {\n box: box,\n content: boxChildren.find(function (node) {\n return node.classList.contains(CONTENT_CLASS);\n }),\n arrow: boxChildren.find(function (node) {\n return node.classList.contains(ARROW_CLASS) || node.classList.contains(SVG_ARROW_CLASS);\n }),\n backdrop: boxChildren.find(function (node) {\n return node.classList.contains(BACKDROP_CLASS);\n })\n };\n}\nfunction render(instance) {\n var popper = div();\n var box = div();\n box.className = BOX_CLASS;\n box.setAttribute('data-state', 'hidden');\n box.setAttribute('tabindex', '-1');\n var content = div();\n content.className = CONTENT_CLASS;\n content.setAttribute('data-state', 'hidden');\n setContent(content, instance.props);\n popper.appendChild(box);\n box.appendChild(content);\n onUpdate(instance.props, instance.props);\n\n function onUpdate(prevProps, nextProps) {\n var _getChildren = getChildren(popper),\n box = _getChildren.box,\n content = _getChildren.content,\n arrow = _getChildren.arrow;\n\n if (nextProps.theme) {\n box.setAttribute('data-theme', nextProps.theme);\n } else {\n box.removeAttribute('data-theme');\n }\n\n if (typeof nextProps.animation === 'string') {\n box.setAttribute('data-animation', nextProps.animation);\n } else {\n box.removeAttribute('data-animation');\n }\n\n if (nextProps.inertia) {\n box.setAttribute('data-inertia', '');\n } else {\n box.removeAttribute('data-inertia');\n }\n\n box.style.maxWidth = typeof nextProps.maxWidth === 'number' ? nextProps.maxWidth + \"px\" : nextProps.maxWidth;\n\n if (nextProps.role) {\n box.setAttribute('role', nextProps.role);\n } else {\n box.removeAttribute('role');\n }\n\n if (prevProps.content !== nextProps.content || prevProps.allowHTML !== nextProps.allowHTML) {\n setContent(content, instance.props);\n }\n\n if (nextProps.arrow) {\n if (!arrow) {\n box.appendChild(createArrowElement(nextProps.arrow));\n } else if (prevProps.arrow !== nextProps.arrow) {\n box.removeChild(arrow);\n box.appendChild(createArrowElement(nextProps.arrow));\n }\n } else if (arrow) {\n box.removeChild(arrow);\n }\n }\n\n return {\n popper: popper,\n onUpdate: onUpdate\n };\n} // Runtime check to identify if the render function is the default one; this\n// way we can apply default CSS transitions logic and it can be tree-shaken away\n\nrender.$$tippy = true;\n\nvar idCounter = 1;\nvar mouseMoveListeners = []; // Used by `hideAll()`\n\nvar mountedInstances = [];\nfunction createTippy(reference, passedProps) {\n var props = evaluateProps(reference, Object.assign({}, defaultProps, getExtendedPassedProps(removeUndefinedProps(passedProps)))); // ===========================================================================\n // 🔒 Private members\n // ===========================================================================\n\n var showTimeout;\n var hideTimeout;\n var scheduleHideAnimationFrame;\n var isVisibleFromClick = false;\n var didHideDueToDocumentMouseDown = false;\n var didTouchMove = false;\n var ignoreOnFirstUpdate = false;\n var lastTriggerEvent;\n var currentTransitionEndListener;\n var onFirstUpdate;\n var listeners = [];\n var debouncedOnMouseMove = debounce(onMouseMove, props.interactiveDebounce);\n var currentTarget; // ===========================================================================\n // 🔑 Public members\n // ===========================================================================\n\n var id = idCounter++;\n var popperInstance = null;\n var plugins = unique(props.plugins);\n var state = {\n // Is the instance currently enabled?\n isEnabled: true,\n // Is the tippy currently showing and not transitioning out?\n isVisible: false,\n // Has the instance been destroyed?\n isDestroyed: false,\n // Is the tippy currently mounted to the DOM?\n isMounted: false,\n // Has the tippy finished transitioning in?\n isShown: false\n };\n var instance = {\n // properties\n id: id,\n reference: reference,\n popper: div(),\n popperInstance: popperInstance,\n props: props,\n state: state,\n plugins: plugins,\n // methods\n clearDelayTimeouts: clearDelayTimeouts,\n setProps: setProps,\n setContent: setContent,\n show: show,\n hide: hide,\n hideWithInteractivity: hideWithInteractivity,\n enable: enable,\n disable: disable,\n unmount: unmount,\n destroy: destroy\n }; // TODO: Investigate why this early return causes a TDZ error in the tests —\n // it doesn't seem to happen in the browser\n\n /* istanbul ignore if */\n\n if (!props.render) {\n if (process.env.NODE_ENV !== \"production\") {\n errorWhen(true, 'render() function has not been supplied.');\n }\n\n return instance;\n } // ===========================================================================\n // Initial mutations\n // ===========================================================================\n\n\n var _props$render = props.render(instance),\n popper = _props$render.popper,\n onUpdate = _props$render.onUpdate;\n\n popper.setAttribute('data-tippy-root', '');\n popper.id = \"tippy-\" + instance.id;\n instance.popper = popper;\n reference._tippy = instance;\n popper._tippy = instance;\n var pluginsHooks = plugins.map(function (plugin) {\n return plugin.fn(instance);\n });\n var hasAriaExpanded = reference.hasAttribute('aria-expanded');\n addListeners();\n handleAriaExpandedAttribute();\n handleStyles();\n invokeHook('onCreate', [instance]);\n\n if (props.showOnCreate) {\n scheduleShow();\n } // Prevent a tippy with a delay from hiding if the cursor left then returned\n // before it started hiding\n\n\n popper.addEventListener('mouseenter', function () {\n if (instance.props.interactive && instance.state.isVisible) {\n instance.clearDelayTimeouts();\n }\n });\n popper.addEventListener('mouseleave', function () {\n if (instance.props.interactive && instance.props.trigger.indexOf('mouseenter') >= 0) {\n getDocument().addEventListener('mousemove', debouncedOnMouseMove);\n }\n });\n return instance; // ===========================================================================\n // 🔒 Private methods\n // ===========================================================================\n\n function getNormalizedTouchSettings() {\n var touch = instance.props.touch;\n return Array.isArray(touch) ? touch : [touch, 0];\n }\n\n function getIsCustomTouchBehavior() {\n return getNormalizedTouchSettings()[0] === 'hold';\n }\n\n function getIsDefaultRenderFn() {\n var _instance$props$rende;\n\n // @ts-ignore\n return !!((_instance$props$rende = instance.props.render) != null && _instance$props$rende.$$tippy);\n }\n\n function getCurrentTarget() {\n return currentTarget || reference;\n }\n\n function getDocument() {\n var parent = getCurrentTarget().parentNode;\n return parent ? getOwnerDocument(parent) : document;\n }\n\n function getDefaultTemplateChildren() {\n return getChildren(popper);\n }\n\n function getDelay(isShow) {\n // For touch or keyboard input, force `0` delay for UX reasons\n // Also if the instance is mounted but not visible (transitioning out),\n // ignore delay\n if (instance.state.isMounted && !instance.state.isVisible || currentInput.isTouch || lastTriggerEvent && lastTriggerEvent.type === 'focus') {\n return 0;\n }\n\n return getValueAtIndexOrReturn(instance.props.delay, isShow ? 0 : 1, defaultProps.delay);\n }\n\n function handleStyles(fromHide) {\n if (fromHide === void 0) {\n fromHide = false;\n }\n\n popper.style.pointerEvents = instance.props.interactive && !fromHide ? '' : 'none';\n popper.style.zIndex = \"\" + instance.props.zIndex;\n }\n\n function invokeHook(hook, args, shouldInvokePropsHook) {\n if (shouldInvokePropsHook === void 0) {\n shouldInvokePropsHook = true;\n }\n\n pluginsHooks.forEach(function (pluginHooks) {\n if (pluginHooks[hook]) {\n pluginHooks[hook].apply(pluginHooks, args);\n }\n });\n\n if (shouldInvokePropsHook) {\n var _instance$props;\n\n (_instance$props = instance.props)[hook].apply(_instance$props, args);\n }\n }\n\n function handleAriaContentAttribute() {\n var aria = instance.props.aria;\n\n if (!aria.content) {\n return;\n }\n\n var attr = \"aria-\" + aria.content;\n var id = popper.id;\n var nodes = normalizeToArray(instance.props.triggerTarget || reference);\n nodes.forEach(function (node) {\n var currentValue = node.getAttribute(attr);\n\n if (instance.state.isVisible) {\n node.setAttribute(attr, currentValue ? currentValue + \" \" + id : id);\n } else {\n var nextValue = currentValue && currentValue.replace(id, '').trim();\n\n if (nextValue) {\n node.setAttribute(attr, nextValue);\n } else {\n node.removeAttribute(attr);\n }\n }\n });\n }\n\n function handleAriaExpandedAttribute() {\n if (hasAriaExpanded || !instance.props.aria.expanded) {\n return;\n }\n\n var nodes = normalizeToArray(instance.props.triggerTarget || reference);\n nodes.forEach(function (node) {\n if (instance.props.interactive) {\n node.setAttribute('aria-expanded', instance.state.isVisible && node === getCurrentTarget() ? 'true' : 'false');\n } else {\n node.removeAttribute('aria-expanded');\n }\n });\n }\n\n function cleanupInteractiveMouseListeners() {\n getDocument().removeEventListener('mousemove', debouncedOnMouseMove);\n mouseMoveListeners = mouseMoveListeners.filter(function (listener) {\n return listener !== debouncedOnMouseMove;\n });\n }\n\n function onDocumentPress(event) {\n // Moved finger to scroll instead of an intentional tap outside\n if (currentInput.isTouch) {\n if (didTouchMove || event.type === 'mousedown') {\n return;\n }\n }\n\n var actualTarget = event.composedPath && event.composedPath()[0] || event.target; // Clicked on interactive popper\n\n if (instance.props.interactive && actualContains(popper, actualTarget)) {\n return;\n } // Clicked on the event listeners target\n\n\n if (normalizeToArray(instance.props.triggerTarget || reference).some(function (el) {\n return actualContains(el, actualTarget);\n })) {\n if (currentInput.isTouch) {\n return;\n }\n\n if (instance.state.isVisible && instance.props.trigger.indexOf('click') >= 0) {\n return;\n }\n } else {\n invokeHook('onClickOutside', [instance, event]);\n }\n\n if (instance.props.hideOnClick === true) {\n instance.clearDelayTimeouts();\n instance.hide(); // `mousedown` event is fired right before `focus` if pressing the\n // currentTarget. This lets a tippy with `focus` trigger know that it\n // should not show\n\n didHideDueToDocumentMouseDown = true;\n setTimeout(function () {\n didHideDueToDocumentMouseDown = false;\n }); // The listener gets added in `scheduleShow()`, but this may be hiding it\n // before it shows, and hide()'s early bail-out behavior can prevent it\n // from being cleaned up\n\n if (!instance.state.isMounted) {\n removeDocumentPress();\n }\n }\n }\n\n function onTouchMove() {\n didTouchMove = true;\n }\n\n function onTouchStart() {\n didTouchMove = false;\n }\n\n function addDocumentPress() {\n var doc = getDocument();\n doc.addEventListener('mousedown', onDocumentPress, true);\n doc.addEventListener('touchend', onDocumentPress, TOUCH_OPTIONS);\n doc.addEventListener('touchstart', onTouchStart, TOUCH_OPTIONS);\n doc.addEventListener('touchmove', onTouchMove, TOUCH_OPTIONS);\n }\n\n function removeDocumentPress() {\n var doc = getDocument();\n doc.removeEventListener('mousedown', onDocumentPress, true);\n doc.removeEventListener('touchend', onDocumentPress, TOUCH_OPTIONS);\n doc.removeEventListener('touchstart', onTouchStart, TOUCH_OPTIONS);\n doc.removeEventListener('touchmove', onTouchMove, TOUCH_OPTIONS);\n }\n\n function onTransitionedOut(duration, callback) {\n onTransitionEnd(duration, function () {\n if (!instance.state.isVisible && popper.parentNode && popper.parentNode.contains(popper)) {\n callback();\n }\n });\n }\n\n function onTransitionedIn(duration, callback) {\n onTransitionEnd(duration, callback);\n }\n\n function onTransitionEnd(duration, callback) {\n var box = getDefaultTemplateChildren().box;\n\n function listener(event) {\n if (event.target === box) {\n updateTransitionEndListener(box, 'remove', listener);\n callback();\n }\n } // Make callback synchronous if duration is 0\n // `transitionend` won't fire otherwise\n\n\n if (duration === 0) {\n return callback();\n }\n\n updateTransitionEndListener(box, 'remove', currentTransitionEndListener);\n updateTransitionEndListener(box, 'add', listener);\n currentTransitionEndListener = listener;\n }\n\n function on(eventType, handler, options) {\n if (options === void 0) {\n options = false;\n }\n\n var nodes = normalizeToArray(instance.props.triggerTarget || reference);\n nodes.forEach(function (node) {\n node.addEventListener(eventType, handler, options);\n listeners.push({\n node: node,\n eventType: eventType,\n handler: handler,\n options: options\n });\n });\n }\n\n function addListeners() {\n if (getIsCustomTouchBehavior()) {\n on('touchstart', onTrigger, {\n passive: true\n });\n on('touchend', onMouseLeave, {\n passive: true\n });\n }\n\n splitBySpaces(instance.props.trigger).forEach(function (eventType) {\n if (eventType === 'manual') {\n return;\n }\n\n on(eventType, onTrigger);\n\n switch (eventType) {\n case 'mouseenter':\n on('mouseleave', onMouseLeave);\n break;\n\n case 'focus':\n on(isIE11 ? 'focusout' : 'blur', onBlurOrFocusOut);\n break;\n\n case 'focusin':\n on('focusout', onBlurOrFocusOut);\n break;\n }\n });\n }\n\n function removeListeners() {\n listeners.forEach(function (_ref) {\n var node = _ref.node,\n eventType = _ref.eventType,\n handler = _ref.handler,\n options = _ref.options;\n node.removeEventListener(eventType, handler, options);\n });\n listeners = [];\n }\n\n function onTrigger(event) {\n var _lastTriggerEvent;\n\n var shouldScheduleClickHide = false;\n\n if (!instance.state.isEnabled || isEventListenerStopped(event) || didHideDueToDocumentMouseDown) {\n return;\n }\n\n var wasFocused = ((_lastTriggerEvent = lastTriggerEvent) == null ? void 0 : _lastTriggerEvent.type) === 'focus';\n lastTriggerEvent = event;\n currentTarget = event.currentTarget;\n handleAriaExpandedAttribute();\n\n if (!instance.state.isVisible && isMouseEvent(event)) {\n // If scrolling, `mouseenter` events can be fired if the cursor lands\n // over a new target, but `mousemove` events don't get fired. This\n // causes interactive tooltips to get stuck open until the cursor is\n // moved\n mouseMoveListeners.forEach(function (listener) {\n return listener(event);\n });\n } // Toggle show/hide when clicking click-triggered tooltips\n\n\n if (event.type === 'click' && (instance.props.trigger.indexOf('mouseenter') < 0 || isVisibleFromClick) && instance.props.hideOnClick !== false && instance.state.isVisible) {\n shouldScheduleClickHide = true;\n } else {\n scheduleShow(event);\n }\n\n if (event.type === 'click') {\n isVisibleFromClick = !shouldScheduleClickHide;\n }\n\n if (shouldScheduleClickHide && !wasFocused) {\n scheduleHide(event);\n }\n }\n\n function onMouseMove(event) {\n var target = event.target;\n var isCursorOverReferenceOrPopper = getCurrentTarget().contains(target) || popper.contains(target);\n\n if (event.type === 'mousemove' && isCursorOverReferenceOrPopper) {\n return;\n }\n\n var popperTreeData = getNestedPopperTree().concat(popper).map(function (popper) {\n var _instance$popperInsta;\n\n var instance = popper._tippy;\n var state = (_instance$popperInsta = instance.popperInstance) == null ? void 0 : _instance$popperInsta.state;\n\n if (state) {\n return {\n popperRect: popper.getBoundingClientRect(),\n popperState: state,\n props: props\n };\n }\n\n return null;\n }).filter(Boolean);\n\n if (isCursorOutsideInteractiveBorder(popperTreeData, event)) {\n cleanupInteractiveMouseListeners();\n scheduleHide(event);\n }\n }\n\n function onMouseLeave(event) {\n var shouldBail = isEventListenerStopped(event) || instance.props.trigger.indexOf('click') >= 0 && isVisibleFromClick;\n\n if (shouldBail) {\n return;\n }\n\n if (instance.props.interactive) {\n instance.hideWithInteractivity(event);\n return;\n }\n\n scheduleHide(event);\n }\n\n function onBlurOrFocusOut(event) {\n if (instance.props.trigger.indexOf('focusin') < 0 && event.target !== getCurrentTarget()) {\n return;\n } // If focus was moved to within the popper\n\n\n if (instance.props.interactive && event.relatedTarget && popper.contains(event.relatedTarget)) {\n return;\n }\n\n scheduleHide(event);\n }\n\n function isEventListenerStopped(event) {\n return currentInput.isTouch ? getIsCustomTouchBehavior() !== event.type.indexOf('touch') >= 0 : false;\n }\n\n function createPopperInstance() {\n destroyPopperInstance();\n var _instance$props2 = instance.props,\n popperOptions = _instance$props2.popperOptions,\n placement = _instance$props2.placement,\n offset = _instance$props2.offset,\n getReferenceClientRect = _instance$props2.getReferenceClientRect,\n moveTransition = _instance$props2.moveTransition;\n var arrow = getIsDefaultRenderFn() ? getChildren(popper).arrow : null;\n var computedReference = getReferenceClientRect ? {\n getBoundingClientRect: getReferenceClientRect,\n contextElement: getReferenceClientRect.contextElement || getCurrentTarget()\n } : reference;\n var tippyModifier = {\n name: '$$tippy',\n enabled: true,\n phase: 'beforeWrite',\n requires: ['computeStyles'],\n fn: function fn(_ref2) {\n var state = _ref2.state;\n\n if (getIsDefaultRenderFn()) {\n var _getDefaultTemplateCh = getDefaultTemplateChildren(),\n box = _getDefaultTemplateCh.box;\n\n ['placement', 'reference-hidden', 'escaped'].forEach(function (attr) {\n if (attr === 'placement') {\n box.setAttribute('data-placement', state.placement);\n } else {\n if (state.attributes.popper[\"data-popper-\" + attr]) {\n box.setAttribute(\"data-\" + attr, '');\n } else {\n box.removeAttribute(\"data-\" + attr);\n }\n }\n });\n state.attributes.popper = {};\n }\n }\n };\n var modifiers = [{\n name: 'offset',\n options: {\n offset: offset\n }\n }, {\n name: 'preventOverflow',\n options: {\n padding: {\n top: 2,\n bottom: 2,\n left: 5,\n right: 5\n }\n }\n }, {\n name: 'flip',\n options: {\n padding: 5\n }\n }, {\n name: 'computeStyles',\n options: {\n adaptive: !moveTransition\n }\n }, tippyModifier];\n\n if (getIsDefaultRenderFn() && arrow) {\n modifiers.push({\n name: 'arrow',\n options: {\n element: arrow,\n padding: 3\n }\n });\n }\n\n modifiers.push.apply(modifiers, (popperOptions == null ? void 0 : popperOptions.modifiers) || []);\n instance.popperInstance = createPopper(computedReference, popper, Object.assign({}, popperOptions, {\n placement: placement,\n onFirstUpdate: onFirstUpdate,\n modifiers: modifiers\n }));\n }\n\n function destroyPopperInstance() {\n if (instance.popperInstance) {\n instance.popperInstance.destroy();\n instance.popperInstance = null;\n }\n }\n\n function mount() {\n var appendTo = instance.props.appendTo;\n var parentNode; // By default, we'll append the popper to the triggerTargets's parentNode so\n // it's directly after the reference element so the elements inside the\n // tippy can be tabbed to\n // If there are clipping issues, the user can specify a different appendTo\n // and ensure focus management is handled correctly manually\n\n var node = getCurrentTarget();\n\n if (instance.props.interactive && appendTo === TIPPY_DEFAULT_APPEND_TO || appendTo === 'parent') {\n parentNode = node.parentNode;\n } else {\n parentNode = invokeWithArgsOrReturn(appendTo, [node]);\n } // The popper element needs to exist on the DOM before its position can be\n // updated as Popper needs to read its dimensions\n\n\n if (!parentNode.contains(popper)) {\n parentNode.appendChild(popper);\n }\n\n instance.state.isMounted = true;\n createPopperInstance();\n /* istanbul ignore else */\n\n if (process.env.NODE_ENV !== \"production\") {\n // Accessibility check\n warnWhen(instance.props.interactive && appendTo === defaultProps.appendTo && node.nextElementSibling !== popper, ['Interactive tippy element may not be accessible via keyboard', 'navigation because it is not directly after the reference element', 'in the DOM source order.', '\\n\\n', 'Using a wrapper or tag around the reference element', 'solves this by creating a new parentNode context.', '\\n\\n', 'Specifying `appendTo: document.body` silences this warning, but it', 'assumes you are using a focus management solution to handle', 'keyboard navigation.', '\\n\\n', 'See: https://atomiks.github.io/tippyjs/v6/accessibility/#interactivity'].join(' '));\n }\n }\n\n function getNestedPopperTree() {\n return arrayFrom(popper.querySelectorAll('[data-tippy-root]'));\n }\n\n function scheduleShow(event) {\n instance.clearDelayTimeouts();\n\n if (event) {\n invokeHook('onTrigger', [instance, event]);\n }\n\n addDocumentPress();\n var delay = getDelay(true);\n\n var _getNormalizedTouchSe = getNormalizedTouchSettings(),\n touchValue = _getNormalizedTouchSe[0],\n touchDelay = _getNormalizedTouchSe[1];\n\n if (currentInput.isTouch && touchValue === 'hold' && touchDelay) {\n delay = touchDelay;\n }\n\n if (delay) {\n showTimeout = setTimeout(function () {\n instance.show();\n }, delay);\n } else {\n instance.show();\n }\n }\n\n function scheduleHide(event) {\n instance.clearDelayTimeouts();\n invokeHook('onUntrigger', [instance, event]);\n\n if (!instance.state.isVisible) {\n removeDocumentPress();\n return;\n } // For interactive tippies, scheduleHide is added to a document.body handler\n // from onMouseLeave so must intercept scheduled hides from mousemove/leave\n // events when trigger contains mouseenter and click, and the tip is\n // currently shown as a result of a click.\n\n\n if (instance.props.trigger.indexOf('mouseenter') >= 0 && instance.props.trigger.indexOf('click') >= 0 && ['mouseleave', 'mousemove'].indexOf(event.type) >= 0 && isVisibleFromClick) {\n return;\n }\n\n var delay = getDelay(false);\n\n if (delay) {\n hideTimeout = setTimeout(function () {\n if (instance.state.isVisible) {\n instance.hide();\n }\n }, delay);\n } else {\n // Fixes a `transitionend` problem when it fires 1 frame too\n // late sometimes, we don't want hide() to be called.\n scheduleHideAnimationFrame = requestAnimationFrame(function () {\n instance.hide();\n });\n }\n } // ===========================================================================\n // 🔑 Public methods\n // ===========================================================================\n\n\n function enable() {\n instance.state.isEnabled = true;\n }\n\n function disable() {\n // Disabling the instance should also hide it\n // https://github.com/atomiks/tippy.js-react/issues/106\n instance.hide();\n instance.state.isEnabled = false;\n }\n\n function clearDelayTimeouts() {\n clearTimeout(showTimeout);\n clearTimeout(hideTimeout);\n cancelAnimationFrame(scheduleHideAnimationFrame);\n }\n\n function setProps(partialProps) {\n /* istanbul ignore else */\n if (process.env.NODE_ENV !== \"production\") {\n warnWhen(instance.state.isDestroyed, createMemoryLeakWarning('setProps'));\n }\n\n if (instance.state.isDestroyed) {\n return;\n }\n\n invokeHook('onBeforeUpdate', [instance, partialProps]);\n removeListeners();\n var prevProps = instance.props;\n var nextProps = evaluateProps(reference, Object.assign({}, prevProps, removeUndefinedProps(partialProps), {\n ignoreAttributes: true\n }));\n instance.props = nextProps;\n addListeners();\n\n if (prevProps.interactiveDebounce !== nextProps.interactiveDebounce) {\n cleanupInteractiveMouseListeners();\n debouncedOnMouseMove = debounce(onMouseMove, nextProps.interactiveDebounce);\n } // Ensure stale aria-expanded attributes are removed\n\n\n if (prevProps.triggerTarget && !nextProps.triggerTarget) {\n normalizeToArray(prevProps.triggerTarget).forEach(function (node) {\n node.removeAttribute('aria-expanded');\n });\n } else if (nextProps.triggerTarget) {\n reference.removeAttribute('aria-expanded');\n }\n\n handleAriaExpandedAttribute();\n handleStyles();\n\n if (onUpdate) {\n onUpdate(prevProps, nextProps);\n }\n\n if (instance.popperInstance) {\n createPopperInstance(); // Fixes an issue with nested tippies if they are all getting re-rendered,\n // and the nested ones get re-rendered first.\n // https://github.com/atomiks/tippyjs-react/issues/177\n // TODO: find a cleaner / more efficient solution(!)\n\n getNestedPopperTree().forEach(function (nestedPopper) {\n // React (and other UI libs likely) requires a rAF wrapper as it flushes\n // its work in one\n requestAnimationFrame(nestedPopper._tippy.popperInstance.forceUpdate);\n });\n }\n\n invokeHook('onAfterUpdate', [instance, partialProps]);\n }\n\n function setContent(content) {\n instance.setProps({\n content: content\n });\n }\n\n function show() {\n /* istanbul ignore else */\n if (process.env.NODE_ENV !== \"production\") {\n warnWhen(instance.state.isDestroyed, createMemoryLeakWarning('show'));\n } // Early bail-out\n\n\n var isAlreadyVisible = instance.state.isVisible;\n var isDestroyed = instance.state.isDestroyed;\n var isDisabled = !instance.state.isEnabled;\n var isTouchAndTouchDisabled = currentInput.isTouch && !instance.props.touch;\n var duration = getValueAtIndexOrReturn(instance.props.duration, 0, defaultProps.duration);\n\n if (isAlreadyVisible || isDestroyed || isDisabled || isTouchAndTouchDisabled) {\n return;\n } // Normalize `disabled` behavior across browsers.\n // Firefox allows events on disabled elements, but Chrome doesn't.\n // Using a wrapper element (i.e. ) is recommended.\n\n\n if (getCurrentTarget().hasAttribute('disabled')) {\n return;\n }\n\n invokeHook('onShow', [instance], false);\n\n if (instance.props.onShow(instance) === false) {\n return;\n }\n\n instance.state.isVisible = true;\n\n if (getIsDefaultRenderFn()) {\n popper.style.visibility = 'visible';\n }\n\n handleStyles();\n addDocumentPress();\n\n if (!instance.state.isMounted) {\n popper.style.transition = 'none';\n } // If flipping to the opposite side after hiding at least once, the\n // animation will use the wrong placement without resetting the duration\n\n\n if (getIsDefaultRenderFn()) {\n var _getDefaultTemplateCh2 = getDefaultTemplateChildren(),\n box = _getDefaultTemplateCh2.box,\n content = _getDefaultTemplateCh2.content;\n\n setTransitionDuration([box, content], 0);\n }\n\n onFirstUpdate = function onFirstUpdate() {\n var _instance$popperInsta2;\n\n if (!instance.state.isVisible || ignoreOnFirstUpdate) {\n return;\n }\n\n ignoreOnFirstUpdate = true; // reflow\n\n void popper.offsetHeight;\n popper.style.transition = instance.props.moveTransition;\n\n if (getIsDefaultRenderFn() && instance.props.animation) {\n var _getDefaultTemplateCh3 = getDefaultTemplateChildren(),\n _box = _getDefaultTemplateCh3.box,\n _content = _getDefaultTemplateCh3.content;\n\n setTransitionDuration([_box, _content], duration);\n setVisibilityState([_box, _content], 'visible');\n }\n\n handleAriaContentAttribute();\n handleAriaExpandedAttribute();\n pushIfUnique(mountedInstances, instance); // certain modifiers (e.g. `maxSize`) require a second update after the\n // popper has been positioned for the first time\n\n (_instance$popperInsta2 = instance.popperInstance) == null ? void 0 : _instance$popperInsta2.forceUpdate();\n invokeHook('onMount', [instance]);\n\n if (instance.props.animation && getIsDefaultRenderFn()) {\n onTransitionedIn(duration, function () {\n instance.state.isShown = true;\n invokeHook('onShown', [instance]);\n });\n }\n };\n\n mount();\n }\n\n function hide() {\n /* istanbul ignore else */\n if (process.env.NODE_ENV !== \"production\") {\n warnWhen(instance.state.isDestroyed, createMemoryLeakWarning('hide'));\n } // Early bail-out\n\n\n var isAlreadyHidden = !instance.state.isVisible;\n var isDestroyed = instance.state.isDestroyed;\n var isDisabled = !instance.state.isEnabled;\n var duration = getValueAtIndexOrReturn(instance.props.duration, 1, defaultProps.duration);\n\n if (isAlreadyHidden || isDestroyed || isDisabled) {\n return;\n }\n\n invokeHook('onHide', [instance], false);\n\n if (instance.props.onHide(instance) === false) {\n return;\n }\n\n instance.state.isVisible = false;\n instance.state.isShown = false;\n ignoreOnFirstUpdate = false;\n isVisibleFromClick = false;\n\n if (getIsDefaultRenderFn()) {\n popper.style.visibility = 'hidden';\n }\n\n cleanupInteractiveMouseListeners();\n removeDocumentPress();\n handleStyles(true);\n\n if (getIsDefaultRenderFn()) {\n var _getDefaultTemplateCh4 = getDefaultTemplateChildren(),\n box = _getDefaultTemplateCh4.box,\n content = _getDefaultTemplateCh4.content;\n\n if (instance.props.animation) {\n setTransitionDuration([box, content], duration);\n setVisibilityState([box, content], 'hidden');\n }\n }\n\n handleAriaContentAttribute();\n handleAriaExpandedAttribute();\n\n if (instance.props.animation) {\n if (getIsDefaultRenderFn()) {\n onTransitionedOut(duration, instance.unmount);\n }\n } else {\n instance.unmount();\n }\n }\n\n function hideWithInteractivity(event) {\n /* istanbul ignore else */\n if (process.env.NODE_ENV !== \"production\") {\n warnWhen(instance.state.isDestroyed, createMemoryLeakWarning('hideWithInteractivity'));\n }\n\n getDocument().addEventListener('mousemove', debouncedOnMouseMove);\n pushIfUnique(mouseMoveListeners, debouncedOnMouseMove);\n debouncedOnMouseMove(event);\n }\n\n function unmount() {\n /* istanbul ignore else */\n if (process.env.NODE_ENV !== \"production\") {\n warnWhen(instance.state.isDestroyed, createMemoryLeakWarning('unmount'));\n }\n\n if (instance.state.isVisible) {\n instance.hide();\n }\n\n if (!instance.state.isMounted) {\n return;\n }\n\n destroyPopperInstance(); // If a popper is not interactive, it will be appended outside the popper\n // tree by default. This seems mainly for interactive tippies, but we should\n // find a workaround if possible\n\n getNestedPopperTree().forEach(function (nestedPopper) {\n nestedPopper._tippy.unmount();\n });\n\n if (popper.parentNode) {\n popper.parentNode.removeChild(popper);\n }\n\n mountedInstances = mountedInstances.filter(function (i) {\n return i !== instance;\n });\n instance.state.isMounted = false;\n invokeHook('onHidden', [instance]);\n }\n\n function destroy() {\n /* istanbul ignore else */\n if (process.env.NODE_ENV !== \"production\") {\n warnWhen(instance.state.isDestroyed, createMemoryLeakWarning('destroy'));\n }\n\n if (instance.state.isDestroyed) {\n return;\n }\n\n instance.clearDelayTimeouts();\n instance.unmount();\n removeListeners();\n delete reference._tippy;\n instance.state.isDestroyed = true;\n invokeHook('onDestroy', [instance]);\n }\n}\n\nfunction tippy(targets, optionalProps) {\n if (optionalProps === void 0) {\n optionalProps = {};\n }\n\n var plugins = defaultProps.plugins.concat(optionalProps.plugins || []);\n /* istanbul ignore else */\n\n if (process.env.NODE_ENV !== \"production\") {\n validateTargets(targets);\n validateProps(optionalProps, plugins);\n }\n\n bindGlobalEventListeners();\n var passedProps = Object.assign({}, optionalProps, {\n plugins: plugins\n });\n var elements = getArrayOfElements(targets);\n /* istanbul ignore else */\n\n if (process.env.NODE_ENV !== \"production\") {\n var isSingleContentElement = isElement(passedProps.content);\n var isMoreThanOneReferenceElement = elements.length > 1;\n warnWhen(isSingleContentElement && isMoreThanOneReferenceElement, ['tippy() was passed an Element as the `content` prop, but more than', 'one tippy instance was created by this invocation. This means the', 'content element will only be appended to the last tippy instance.', '\\n\\n', 'Instead, pass the .innerHTML of the element, or use a function that', 'returns a cloned version of the element instead.', '\\n\\n', '1) content: element.innerHTML\\n', '2) content: () => element.cloneNode(true)'].join(' '));\n }\n\n var instances = elements.reduce(function (acc, reference) {\n var instance = reference && createTippy(reference, passedProps);\n\n if (instance) {\n acc.push(instance);\n }\n\n return acc;\n }, []);\n return isElement(targets) ? instances[0] : instances;\n}\n\ntippy.defaultProps = defaultProps;\ntippy.setDefaultProps = setDefaultProps;\ntippy.currentInput = currentInput;\nvar hideAll = function hideAll(_temp) {\n var _ref = _temp === void 0 ? {} : _temp,\n excludedReferenceOrInstance = _ref.exclude,\n duration = _ref.duration;\n\n mountedInstances.forEach(function (instance) {\n var isExcluded = false;\n\n if (excludedReferenceOrInstance) {\n isExcluded = isReferenceElement(excludedReferenceOrInstance) ? instance.reference === excludedReferenceOrInstance : instance.popper === excludedReferenceOrInstance.popper;\n }\n\n if (!isExcluded) {\n var originalDuration = instance.props.duration;\n instance.setProps({\n duration: duration\n });\n instance.hide();\n\n if (!instance.state.isDestroyed) {\n instance.setProps({\n duration: originalDuration\n });\n }\n }\n });\n};\n\n// every time the popper is destroyed (i.e. a new target), removing the styles\n// and causing transitions to break for singletons when the console is open, but\n// most notably for non-transform styles being used, `gpuAcceleration: false`.\n\nvar applyStylesModifier = Object.assign({}, applyStyles, {\n effect: function effect(_ref) {\n var state = _ref.state;\n var initialStyles = {\n popper: {\n position: state.options.strategy,\n left: '0',\n top: '0',\n margin: '0'\n },\n arrow: {\n position: 'absolute'\n },\n reference: {}\n };\n Object.assign(state.elements.popper.style, initialStyles.popper);\n state.styles = initialStyles;\n\n if (state.elements.arrow) {\n Object.assign(state.elements.arrow.style, initialStyles.arrow);\n } // intentionally return no cleanup function\n // return () => { ... }\n\n }\n});\n\nvar createSingleton = function createSingleton(tippyInstances, optionalProps) {\n var _optionalProps$popper;\n\n if (optionalProps === void 0) {\n optionalProps = {};\n }\n\n /* istanbul ignore else */\n if (process.env.NODE_ENV !== \"production\") {\n errorWhen(!Array.isArray(tippyInstances), ['The first argument passed to createSingleton() must be an array of', 'tippy instances. The passed value was', String(tippyInstances)].join(' '));\n }\n\n var individualInstances = tippyInstances;\n var references = [];\n var triggerTargets = [];\n var currentTarget;\n var overrides = optionalProps.overrides;\n var interceptSetPropsCleanups = [];\n var shownOnCreate = false;\n\n function setTriggerTargets() {\n triggerTargets = individualInstances.map(function (instance) {\n return normalizeToArray(instance.props.triggerTarget || instance.reference);\n }).reduce(function (acc, item) {\n return acc.concat(item);\n }, []);\n }\n\n function setReferences() {\n references = individualInstances.map(function (instance) {\n return instance.reference;\n });\n }\n\n function enableInstances(isEnabled) {\n individualInstances.forEach(function (instance) {\n if (isEnabled) {\n instance.enable();\n } else {\n instance.disable();\n }\n });\n }\n\n function interceptSetProps(singleton) {\n return individualInstances.map(function (instance) {\n var originalSetProps = instance.setProps;\n\n instance.setProps = function (props) {\n originalSetProps(props);\n\n if (instance.reference === currentTarget) {\n singleton.setProps(props);\n }\n };\n\n return function () {\n instance.setProps = originalSetProps;\n };\n });\n } // have to pass singleton, as it maybe undefined on first call\n\n\n function prepareInstance(singleton, target) {\n var index = triggerTargets.indexOf(target); // bail-out\n\n if (target === currentTarget) {\n return;\n }\n\n currentTarget = target;\n var overrideProps = (overrides || []).concat('content').reduce(function (acc, prop) {\n acc[prop] = individualInstances[index].props[prop];\n return acc;\n }, {});\n singleton.setProps(Object.assign({}, overrideProps, {\n getReferenceClientRect: typeof overrideProps.getReferenceClientRect === 'function' ? overrideProps.getReferenceClientRect : function () {\n var _references$index;\n\n return (_references$index = references[index]) == null ? void 0 : _references$index.getBoundingClientRect();\n }\n }));\n }\n\n enableInstances(false);\n setReferences();\n setTriggerTargets();\n var plugin = {\n fn: function fn() {\n return {\n onDestroy: function onDestroy() {\n enableInstances(true);\n },\n onHidden: function onHidden() {\n currentTarget = null;\n },\n onClickOutside: function onClickOutside(instance) {\n if (instance.props.showOnCreate && !shownOnCreate) {\n shownOnCreate = true;\n currentTarget = null;\n }\n },\n onShow: function onShow(instance) {\n if (instance.props.showOnCreate && !shownOnCreate) {\n shownOnCreate = true;\n prepareInstance(instance, references[0]);\n }\n },\n onTrigger: function onTrigger(instance, event) {\n prepareInstance(instance, event.currentTarget);\n }\n };\n }\n };\n var singleton = tippy(div(), Object.assign({}, removeProperties(optionalProps, ['overrides']), {\n plugins: [plugin].concat(optionalProps.plugins || []),\n triggerTarget: triggerTargets,\n popperOptions: Object.assign({}, optionalProps.popperOptions, {\n modifiers: [].concat(((_optionalProps$popper = optionalProps.popperOptions) == null ? void 0 : _optionalProps$popper.modifiers) || [], [applyStylesModifier])\n })\n }));\n var originalShow = singleton.show;\n\n singleton.show = function (target) {\n originalShow(); // first time, showOnCreate or programmatic call with no params\n // default to showing first instance\n\n if (!currentTarget && target == null) {\n return prepareInstance(singleton, references[0]);\n } // triggered from event (do nothing as prepareInstance already called by onTrigger)\n // programmatic call with no params when already visible (do nothing again)\n\n\n if (currentTarget && target == null) {\n return;\n } // target is index of instance\n\n\n if (typeof target === 'number') {\n return references[target] && prepareInstance(singleton, references[target]);\n } // target is a child tippy instance\n\n\n if (individualInstances.indexOf(target) >= 0) {\n var ref = target.reference;\n return prepareInstance(singleton, ref);\n } // target is a ReferenceElement\n\n\n if (references.indexOf(target) >= 0) {\n return prepareInstance(singleton, target);\n }\n };\n\n singleton.showNext = function () {\n var first = references[0];\n\n if (!currentTarget) {\n return singleton.show(0);\n }\n\n var index = references.indexOf(currentTarget);\n singleton.show(references[index + 1] || first);\n };\n\n singleton.showPrevious = function () {\n var last = references[references.length - 1];\n\n if (!currentTarget) {\n return singleton.show(last);\n }\n\n var index = references.indexOf(currentTarget);\n var target = references[index - 1] || last;\n singleton.show(target);\n };\n\n var originalSetProps = singleton.setProps;\n\n singleton.setProps = function (props) {\n overrides = props.overrides || overrides;\n originalSetProps(props);\n };\n\n singleton.setInstances = function (nextInstances) {\n enableInstances(true);\n interceptSetPropsCleanups.forEach(function (fn) {\n return fn();\n });\n individualInstances = nextInstances;\n enableInstances(false);\n setReferences();\n setTriggerTargets();\n interceptSetPropsCleanups = interceptSetProps(singleton);\n singleton.setProps({\n triggerTarget: triggerTargets\n });\n };\n\n interceptSetPropsCleanups = interceptSetProps(singleton);\n return singleton;\n};\n\nvar BUBBLING_EVENTS_MAP = {\n mouseover: 'mouseenter',\n focusin: 'focus',\n click: 'click'\n};\n/**\n * Creates a delegate instance that controls the creation of tippy instances\n * for child elements (`target` CSS selector).\n */\n\nfunction delegate(targets, props) {\n /* istanbul ignore else */\n if (process.env.NODE_ENV !== \"production\") {\n errorWhen(!(props && props.target), ['You must specity a `target` prop indicating a CSS selector string matching', 'the target elements that should receive a tippy.'].join(' '));\n }\n\n var listeners = [];\n var childTippyInstances = [];\n var disabled = false;\n var target = props.target;\n var nativeProps = removeProperties(props, ['target']);\n var parentProps = Object.assign({}, nativeProps, {\n trigger: 'manual',\n touch: false\n });\n var childProps = Object.assign({\n touch: defaultProps.touch\n }, nativeProps, {\n showOnCreate: true\n });\n var returnValue = tippy(targets, parentProps);\n var normalizedReturnValue = normalizeToArray(returnValue);\n\n function onTrigger(event) {\n if (!event.target || disabled) {\n return;\n }\n\n var targetNode = event.target.closest(target);\n\n if (!targetNode) {\n return;\n } // Get relevant trigger with fallbacks:\n // 1. Check `data-tippy-trigger` attribute on target node\n // 2. Fallback to `trigger` passed to `delegate()`\n // 3. Fallback to `defaultProps.trigger`\n\n\n var trigger = targetNode.getAttribute('data-tippy-trigger') || props.trigger || defaultProps.trigger; // @ts-ignore\n\n if (targetNode._tippy) {\n return;\n }\n\n if (event.type === 'touchstart' && typeof childProps.touch === 'boolean') {\n return;\n }\n\n if (event.type !== 'touchstart' && trigger.indexOf(BUBBLING_EVENTS_MAP[event.type]) < 0) {\n return;\n }\n\n var instance = tippy(targetNode, childProps);\n\n if (instance) {\n childTippyInstances = childTippyInstances.concat(instance);\n }\n }\n\n function on(node, eventType, handler, options) {\n if (options === void 0) {\n options = false;\n }\n\n node.addEventListener(eventType, handler, options);\n listeners.push({\n node: node,\n eventType: eventType,\n handler: handler,\n options: options\n });\n }\n\n function addEventListeners(instance) {\n var reference = instance.reference;\n on(reference, 'touchstart', onTrigger, TOUCH_OPTIONS);\n on(reference, 'mouseover', onTrigger);\n on(reference, 'focusin', onTrigger);\n on(reference, 'click', onTrigger);\n }\n\n function removeEventListeners() {\n listeners.forEach(function (_ref) {\n var node = _ref.node,\n eventType = _ref.eventType,\n handler = _ref.handler,\n options = _ref.options;\n node.removeEventListener(eventType, handler, options);\n });\n listeners = [];\n }\n\n function applyMutations(instance) {\n var originalDestroy = instance.destroy;\n var originalEnable = instance.enable;\n var originalDisable = instance.disable;\n\n instance.destroy = function (shouldDestroyChildInstances) {\n if (shouldDestroyChildInstances === void 0) {\n shouldDestroyChildInstances = true;\n }\n\n if (shouldDestroyChildInstances) {\n childTippyInstances.forEach(function (instance) {\n instance.destroy();\n });\n }\n\n childTippyInstances = [];\n removeEventListeners();\n originalDestroy();\n };\n\n instance.enable = function () {\n originalEnable();\n childTippyInstances.forEach(function (instance) {\n return instance.enable();\n });\n disabled = false;\n };\n\n instance.disable = function () {\n originalDisable();\n childTippyInstances.forEach(function (instance) {\n return instance.disable();\n });\n disabled = true;\n };\n\n addEventListeners(instance);\n }\n\n normalizedReturnValue.forEach(applyMutations);\n return returnValue;\n}\n\nvar animateFill = {\n name: 'animateFill',\n defaultValue: false,\n fn: function fn(instance) {\n var _instance$props$rende;\n\n // @ts-ignore\n if (!((_instance$props$rende = instance.props.render) != null && _instance$props$rende.$$tippy)) {\n if (process.env.NODE_ENV !== \"production\") {\n errorWhen(instance.props.animateFill, 'The `animateFill` plugin requires the default render function.');\n }\n\n return {};\n }\n\n var _getChildren = getChildren(instance.popper),\n box = _getChildren.box,\n content = _getChildren.content;\n\n var backdrop = instance.props.animateFill ? createBackdropElement() : null;\n return {\n onCreate: function onCreate() {\n if (backdrop) {\n box.insertBefore(backdrop, box.firstElementChild);\n box.setAttribute('data-animatefill', '');\n box.style.overflow = 'hidden';\n instance.setProps({\n arrow: false,\n animation: 'shift-away'\n });\n }\n },\n onMount: function onMount() {\n if (backdrop) {\n var transitionDuration = box.style.transitionDuration;\n var duration = Number(transitionDuration.replace('ms', '')); // The content should fade in after the backdrop has mostly filled the\n // tooltip element. `clip-path` is the other alternative but is not\n // well-supported and is buggy on some devices.\n\n content.style.transitionDelay = Math.round(duration / 10) + \"ms\";\n backdrop.style.transitionDuration = transitionDuration;\n setVisibilityState([backdrop], 'visible');\n }\n },\n onShow: function onShow() {\n if (backdrop) {\n backdrop.style.transitionDuration = '0ms';\n }\n },\n onHide: function onHide() {\n if (backdrop) {\n setVisibilityState([backdrop], 'hidden');\n }\n }\n };\n }\n};\n\nfunction createBackdropElement() {\n var backdrop = div();\n backdrop.className = BACKDROP_CLASS;\n setVisibilityState([backdrop], 'hidden');\n return backdrop;\n}\n\nvar mouseCoords = {\n clientX: 0,\n clientY: 0\n};\nvar activeInstances = [];\n\nfunction storeMouseCoords(_ref) {\n var clientX = _ref.clientX,\n clientY = _ref.clientY;\n mouseCoords = {\n clientX: clientX,\n clientY: clientY\n };\n}\n\nfunction addMouseCoordsListener(doc) {\n doc.addEventListener('mousemove', storeMouseCoords);\n}\n\nfunction removeMouseCoordsListener(doc) {\n doc.removeEventListener('mousemove', storeMouseCoords);\n}\n\nvar followCursor = {\n name: 'followCursor',\n defaultValue: false,\n fn: function fn(instance) {\n var reference = instance.reference;\n var doc = getOwnerDocument(instance.props.triggerTarget || reference);\n var isInternalUpdate = false;\n var wasFocusEvent = false;\n var isUnmounted = true;\n var prevProps = instance.props;\n\n function getIsInitialBehavior() {\n return instance.props.followCursor === 'initial' && instance.state.isVisible;\n }\n\n function addListener() {\n doc.addEventListener('mousemove', onMouseMove);\n }\n\n function removeListener() {\n doc.removeEventListener('mousemove', onMouseMove);\n }\n\n function unsetGetReferenceClientRect() {\n isInternalUpdate = true;\n instance.setProps({\n getReferenceClientRect: null\n });\n isInternalUpdate = false;\n }\n\n function onMouseMove(event) {\n // If the instance is interactive, avoid updating the position unless it's\n // over the reference element\n var isCursorOverReference = event.target ? reference.contains(event.target) : true;\n var followCursor = instance.props.followCursor;\n var clientX = event.clientX,\n clientY = event.clientY;\n var rect = reference.getBoundingClientRect();\n var relativeX = clientX - rect.left;\n var relativeY = clientY - rect.top;\n\n if (isCursorOverReference || !instance.props.interactive) {\n instance.setProps({\n // @ts-ignore - unneeded DOMRect properties\n getReferenceClientRect: function getReferenceClientRect() {\n var rect = reference.getBoundingClientRect();\n var x = clientX;\n var y = clientY;\n\n if (followCursor === 'initial') {\n x = rect.left + relativeX;\n y = rect.top + relativeY;\n }\n\n var top = followCursor === 'horizontal' ? rect.top : y;\n var right = followCursor === 'vertical' ? rect.right : x;\n var bottom = followCursor === 'horizontal' ? rect.bottom : y;\n var left = followCursor === 'vertical' ? rect.left : x;\n return {\n width: right - left,\n height: bottom - top,\n top: top,\n right: right,\n bottom: bottom,\n left: left\n };\n }\n });\n }\n }\n\n function create() {\n if (instance.props.followCursor) {\n activeInstances.push({\n instance: instance,\n doc: doc\n });\n addMouseCoordsListener(doc);\n }\n }\n\n function destroy() {\n activeInstances = activeInstances.filter(function (data) {\n return data.instance !== instance;\n });\n\n if (activeInstances.filter(function (data) {\n return data.doc === doc;\n }).length === 0) {\n removeMouseCoordsListener(doc);\n }\n }\n\n return {\n onCreate: create,\n onDestroy: destroy,\n onBeforeUpdate: function onBeforeUpdate() {\n prevProps = instance.props;\n },\n onAfterUpdate: function onAfterUpdate(_, _ref2) {\n var followCursor = _ref2.followCursor;\n\n if (isInternalUpdate) {\n return;\n }\n\n if (followCursor !== undefined && prevProps.followCursor !== followCursor) {\n destroy();\n\n if (followCursor) {\n create();\n\n if (instance.state.isMounted && !wasFocusEvent && !getIsInitialBehavior()) {\n addListener();\n }\n } else {\n removeListener();\n unsetGetReferenceClientRect();\n }\n }\n },\n onMount: function onMount() {\n if (instance.props.followCursor && !wasFocusEvent) {\n if (isUnmounted) {\n onMouseMove(mouseCoords);\n isUnmounted = false;\n }\n\n if (!getIsInitialBehavior()) {\n addListener();\n }\n }\n },\n onTrigger: function onTrigger(_, event) {\n if (isMouseEvent(event)) {\n mouseCoords = {\n clientX: event.clientX,\n clientY: event.clientY\n };\n }\n\n wasFocusEvent = event.type === 'focus';\n },\n onHidden: function onHidden() {\n if (instance.props.followCursor) {\n unsetGetReferenceClientRect();\n removeListener();\n isUnmounted = true;\n }\n }\n };\n }\n};\n\nfunction getProps(props, modifier) {\n var _props$popperOptions;\n\n return {\n popperOptions: Object.assign({}, props.popperOptions, {\n modifiers: [].concat((((_props$popperOptions = props.popperOptions) == null ? void 0 : _props$popperOptions.modifiers) || []).filter(function (_ref) {\n var name = _ref.name;\n return name !== modifier.name;\n }), [modifier])\n })\n };\n}\n\nvar inlinePositioning = {\n name: 'inlinePositioning',\n defaultValue: false,\n fn: function fn(instance) {\n var reference = instance.reference;\n\n function isEnabled() {\n return !!instance.props.inlinePositioning;\n }\n\n var placement;\n var cursorRectIndex = -1;\n var isInternalUpdate = false;\n var triedPlacements = [];\n var modifier = {\n name: 'tippyInlinePositioning',\n enabled: true,\n phase: 'afterWrite',\n fn: function fn(_ref2) {\n var state = _ref2.state;\n\n if (isEnabled()) {\n if (triedPlacements.indexOf(state.placement) !== -1) {\n triedPlacements = [];\n }\n\n if (placement !== state.placement && triedPlacements.indexOf(state.placement) === -1) {\n triedPlacements.push(state.placement);\n instance.setProps({\n // @ts-ignore - unneeded DOMRect properties\n getReferenceClientRect: function getReferenceClientRect() {\n return _getReferenceClientRect(state.placement);\n }\n });\n }\n\n placement = state.placement;\n }\n }\n };\n\n function _getReferenceClientRect(placement) {\n return getInlineBoundingClientRect(getBasePlacement(placement), reference.getBoundingClientRect(), arrayFrom(reference.getClientRects()), cursorRectIndex);\n }\n\n function setInternalProps(partialProps) {\n isInternalUpdate = true;\n instance.setProps(partialProps);\n isInternalUpdate = false;\n }\n\n function addModifier() {\n if (!isInternalUpdate) {\n setInternalProps(getProps(instance.props, modifier));\n }\n }\n\n return {\n onCreate: addModifier,\n onAfterUpdate: addModifier,\n onTrigger: function onTrigger(_, event) {\n if (isMouseEvent(event)) {\n var rects = arrayFrom(instance.reference.getClientRects());\n var cursorRect = rects.find(function (rect) {\n return rect.left - 2 <= event.clientX && rect.right + 2 >= event.clientX && rect.top - 2 <= event.clientY && rect.bottom + 2 >= event.clientY;\n });\n var index = rects.indexOf(cursorRect);\n cursorRectIndex = index > -1 ? index : cursorRectIndex;\n }\n },\n onHidden: function onHidden() {\n cursorRectIndex = -1;\n }\n };\n }\n};\nfunction getInlineBoundingClientRect(currentBasePlacement, boundingRect, clientRects, cursorRectIndex) {\n // Not an inline element, or placement is not yet known\n if (clientRects.length < 2 || currentBasePlacement === null) {\n return boundingRect;\n } // There are two rects and they are disjoined\n\n\n if (clientRects.length === 2 && cursorRectIndex >= 0 && clientRects[0].left > clientRects[1].right) {\n return clientRects[cursorRectIndex] || boundingRect;\n }\n\n switch (currentBasePlacement) {\n case 'top':\n case 'bottom':\n {\n var firstRect = clientRects[0];\n var lastRect = clientRects[clientRects.length - 1];\n var isTop = currentBasePlacement === 'top';\n var top = firstRect.top;\n var bottom = lastRect.bottom;\n var left = isTop ? firstRect.left : lastRect.left;\n var right = isTop ? firstRect.right : lastRect.right;\n var width = right - left;\n var height = bottom - top;\n return {\n top: top,\n bottom: bottom,\n left: left,\n right: right,\n width: width,\n height: height\n };\n }\n\n case 'left':\n case 'right':\n {\n var minLeft = Math.min.apply(Math, clientRects.map(function (rects) {\n return rects.left;\n }));\n var maxRight = Math.max.apply(Math, clientRects.map(function (rects) {\n return rects.right;\n }));\n var measureRects = clientRects.filter(function (rect) {\n return currentBasePlacement === 'left' ? rect.left === minLeft : rect.right === maxRight;\n });\n var _top = measureRects[0].top;\n var _bottom = measureRects[measureRects.length - 1].bottom;\n var _left = minLeft;\n var _right = maxRight;\n\n var _width = _right - _left;\n\n var _height = _bottom - _top;\n\n return {\n top: _top,\n bottom: _bottom,\n left: _left,\n right: _right,\n width: _width,\n height: _height\n };\n }\n\n default:\n {\n return boundingRect;\n }\n }\n}\n\nvar sticky = {\n name: 'sticky',\n defaultValue: false,\n fn: function fn(instance) {\n var reference = instance.reference,\n popper = instance.popper;\n\n function getReference() {\n return instance.popperInstance ? instance.popperInstance.state.elements.reference : reference;\n }\n\n function shouldCheck(value) {\n return instance.props.sticky === true || instance.props.sticky === value;\n }\n\n var prevRefRect = null;\n var prevPopRect = null;\n\n function updatePosition() {\n var currentRefRect = shouldCheck('reference') ? getReference().getBoundingClientRect() : null;\n var currentPopRect = shouldCheck('popper') ? popper.getBoundingClientRect() : null;\n\n if (currentRefRect && areRectsDifferent(prevRefRect, currentRefRect) || currentPopRect && areRectsDifferent(prevPopRect, currentPopRect)) {\n if (instance.popperInstance) {\n instance.popperInstance.update();\n }\n }\n\n prevRefRect = currentRefRect;\n prevPopRect = currentPopRect;\n\n if (instance.state.isMounted) {\n requestAnimationFrame(updatePosition);\n }\n }\n\n return {\n onMount: function onMount() {\n if (instance.props.sticky) {\n updatePosition();\n }\n }\n };\n }\n};\n\nfunction areRectsDifferent(rectA, rectB) {\n if (rectA && rectB) {\n return rectA.top !== rectB.top || rectA.right !== rectB.right || rectA.bottom !== rectB.bottom || rectA.left !== rectB.left;\n }\n\n return true;\n}\n\ntippy.setDefaultProps({\n render: render\n});\n\nexport default tippy;\nexport { animateFill, createSingleton, delegate, followCursor, hideAll, inlinePositioning, ROUND_ARROW as roundArrow, sticky };\n//# sourceMappingURL=tippy.esm.js.map\n","import tippy, { createSingleton } from 'tippy.js';\nexport { default as tippy } from 'tippy.js';\nimport React, { useLayoutEffect, useEffect, useRef, useState, cloneElement, useMemo, forwardRef as forwardRef$1 } from 'react';\nimport { createPortal } from 'react-dom';\n\nfunction _objectWithoutPropertiesLoose(source, excluded) {\n if (source == null) return {};\n var target = {};\n var sourceKeys = Object.keys(source);\n var key, i;\n\n for (i = 0; i < sourceKeys.length; i++) {\n key = sourceKeys[i];\n if (excluded.indexOf(key) >= 0) continue;\n target[key] = source[key];\n }\n\n return target;\n}\n\nvar isBrowser = typeof window !== 'undefined' && typeof document !== 'undefined';\nfunction preserveRef(ref, node) {\n if (ref) {\n if (typeof ref === 'function') {\n ref(node);\n }\n\n if ({}.hasOwnProperty.call(ref, 'current')) {\n ref.current = node;\n }\n }\n}\nfunction ssrSafeCreateDiv() {\n return isBrowser && document.createElement('div');\n}\nfunction toDataAttributes(attrs) {\n var dataAttrs = {\n 'data-placement': attrs.placement\n };\n\n if (attrs.referenceHidden) {\n dataAttrs['data-reference-hidden'] = '';\n }\n\n if (attrs.escaped) {\n dataAttrs['data-escaped'] = '';\n }\n\n return dataAttrs;\n}\n\nfunction deepEqual(x, y) {\n if (x === y) {\n return true;\n } else if (typeof x === 'object' && x != null && typeof y === 'object' && y != null) {\n if (Object.keys(x).length !== Object.keys(y).length) {\n return false;\n }\n\n for (var prop in x) {\n if (y.hasOwnProperty(prop)) {\n if (!deepEqual(x[prop], y[prop])) {\n return false;\n }\n } else {\n return false;\n }\n }\n\n return true;\n } else {\n return false;\n }\n}\n\nfunction uniqueByShape(arr) {\n var output = [];\n arr.forEach(function (item) {\n if (!output.find(function (outputItem) {\n return deepEqual(item, outputItem);\n })) {\n output.push(item);\n }\n });\n return output;\n}\nfunction deepPreserveProps(instanceProps, componentProps) {\n var _instanceProps$popper, _componentProps$poppe;\n\n return Object.assign({}, componentProps, {\n popperOptions: Object.assign({}, instanceProps.popperOptions, componentProps.popperOptions, {\n modifiers: uniqueByShape([].concat(((_instanceProps$popper = instanceProps.popperOptions) == null ? void 0 : _instanceProps$popper.modifiers) || [], ((_componentProps$poppe = componentProps.popperOptions) == null ? void 0 : _componentProps$poppe.modifiers) || []))\n })\n });\n}\n\nvar useIsomorphicLayoutEffect = isBrowser ? useLayoutEffect : useEffect;\nfunction useMutableBox(initialValue) {\n // Using refs instead of state as it's recommended to not store imperative\n // values in state due to memory problems in React(?)\n var ref = useRef();\n\n if (!ref.current) {\n ref.current = typeof initialValue === 'function' ? initialValue() : initialValue;\n }\n\n return ref.current;\n}\n\nfunction updateClassName(box, action, classNames) {\n classNames.split(/\\s+/).forEach(function (name) {\n if (name) {\n box.classList[action](name);\n }\n });\n}\n\nvar classNamePlugin = {\n name: 'className',\n defaultValue: '',\n fn: function fn(instance) {\n var box = instance.popper.firstElementChild;\n\n var isDefaultRenderFn = function isDefaultRenderFn() {\n var _instance$props$rende;\n\n return !!((_instance$props$rende = instance.props.render) == null ? void 0 : _instance$props$rende.$$tippy);\n };\n\n function add() {\n if (instance.props.className && !isDefaultRenderFn()) {\n if (process.env.NODE_ENV !== 'production') {\n console.warn(['@tippyjs/react: Cannot use `className` prop in conjunction with', '`render` prop. Place the className on the element you are', 'rendering.'].join(' '));\n }\n\n return;\n }\n\n updateClassName(box, 'add', instance.props.className);\n }\n\n function remove() {\n if (isDefaultRenderFn()) {\n updateClassName(box, 'remove', instance.props.className);\n }\n }\n\n return {\n onCreate: add,\n onBeforeUpdate: remove,\n onAfterUpdate: add\n };\n }\n};\n\nfunction TippyGenerator(tippy) {\n function Tippy(_ref) {\n var children = _ref.children,\n content = _ref.content,\n visible = _ref.visible,\n singleton = _ref.singleton,\n render = _ref.render,\n reference = _ref.reference,\n _ref$disabled = _ref.disabled,\n disabled = _ref$disabled === void 0 ? false : _ref$disabled,\n _ref$ignoreAttributes = _ref.ignoreAttributes,\n ignoreAttributes = _ref$ignoreAttributes === void 0 ? true : _ref$ignoreAttributes,\n __source = _ref.__source,\n __self = _ref.__self,\n restOfNativeProps = _objectWithoutPropertiesLoose(_ref, [\"children\", \"content\", \"visible\", \"singleton\", \"render\", \"reference\", \"disabled\", \"ignoreAttributes\", \"__source\", \"__self\"]);\n\n var isControlledMode = visible !== undefined;\n var isSingletonMode = singleton !== undefined;\n\n var _useState = useState(false),\n mounted = _useState[0],\n setMounted = _useState[1];\n\n var _useState2 = useState({}),\n attrs = _useState2[0],\n setAttrs = _useState2[1];\n\n var _useState3 = useState(),\n singletonContent = _useState3[0],\n setSingletonContent = _useState3[1];\n\n var mutableBox = useMutableBox(function () {\n return {\n container: ssrSafeCreateDiv(),\n renders: 1\n };\n });\n var props = Object.assign({\n ignoreAttributes: ignoreAttributes\n }, restOfNativeProps, {\n content: mutableBox.container\n });\n\n if (isControlledMode) {\n if (process.env.NODE_ENV !== 'production') {\n ['trigger', 'hideOnClick', 'showOnCreate'].forEach(function (nativeStateProp) {\n if (props[nativeStateProp] !== undefined) {\n console.warn([\"@tippyjs/react: Cannot specify `\" + nativeStateProp + \"` prop in\", \"controlled mode (`visible` prop)\"].join(' '));\n }\n });\n }\n\n props.trigger = 'manual';\n props.hideOnClick = false;\n }\n\n if (isSingletonMode) {\n disabled = true;\n }\n\n var computedProps = props;\n var plugins = props.plugins || [];\n\n if (render) {\n computedProps = Object.assign({}, props, {\n plugins: isSingletonMode && singleton.data != null ? [].concat(plugins, [{\n fn: function fn() {\n return {\n onTrigger: function onTrigger(instance, event) {\n var node = singleton.data.children.find(function (_ref2) {\n var instance = _ref2.instance;\n return instance.reference === event.currentTarget;\n });\n instance.state.$$activeSingletonInstance = node.instance;\n setSingletonContent(node.content);\n }\n };\n }\n }]) : plugins,\n render: function render() {\n return {\n popper: mutableBox.container\n };\n }\n });\n }\n\n var deps = [reference].concat(children ? [children.type] : []); // CREATE\n\n useIsomorphicLayoutEffect(function () {\n var element = reference;\n\n if (reference && reference.hasOwnProperty('current')) {\n element = reference.current;\n }\n\n var instance = tippy(element || mutableBox.ref || ssrSafeCreateDiv(), Object.assign({}, computedProps, {\n plugins: [classNamePlugin].concat(props.plugins || [])\n }));\n mutableBox.instance = instance;\n\n if (disabled) {\n instance.disable();\n }\n\n if (visible) {\n instance.show();\n }\n\n if (isSingletonMode) {\n singleton.hook({\n instance: instance,\n content: content,\n props: computedProps,\n setSingletonContent: setSingletonContent\n });\n }\n\n setMounted(true);\n return function () {\n instance.destroy();\n singleton == null ? void 0 : singleton.cleanup(instance);\n };\n }, deps); // UPDATE\n\n useIsomorphicLayoutEffect(function () {\n var _instance$popperInsta;\n\n // Prevent this effect from running on 1st render\n if (mutableBox.renders === 1) {\n mutableBox.renders++;\n return;\n }\n\n var instance = mutableBox.instance;\n instance.setProps(deepPreserveProps(instance.props, computedProps)); // Fixes #264\n\n (_instance$popperInsta = instance.popperInstance) == null ? void 0 : _instance$popperInsta.forceUpdate();\n\n if (disabled) {\n instance.disable();\n } else {\n instance.enable();\n }\n\n if (isControlledMode) {\n if (visible) {\n instance.show();\n } else {\n instance.hide();\n }\n }\n\n if (isSingletonMode) {\n singleton.hook({\n instance: instance,\n content: content,\n props: computedProps,\n setSingletonContent: setSingletonContent\n });\n }\n });\n useIsomorphicLayoutEffect(function () {\n var _instance$props$poppe;\n\n if (!render) {\n return;\n }\n\n var instance = mutableBox.instance;\n instance.setProps({\n popperOptions: Object.assign({}, instance.props.popperOptions, {\n modifiers: [].concat((((_instance$props$poppe = instance.props.popperOptions) == null ? void 0 : _instance$props$poppe.modifiers) || []).filter(function (_ref3) {\n var name = _ref3.name;\n return name !== '$$tippyReact';\n }), [{\n name: '$$tippyReact',\n enabled: true,\n phase: 'beforeWrite',\n requires: ['computeStyles'],\n fn: function fn(_ref4) {\n var _state$modifiersData;\n\n var state = _ref4.state;\n var hideData = (_state$modifiersData = state.modifiersData) == null ? void 0 : _state$modifiersData.hide; // WARNING: this is a high-risk path that can cause an infinite\n // loop. This expression _must_ evaluate to false when required\n\n if (attrs.placement !== state.placement || attrs.referenceHidden !== (hideData == null ? void 0 : hideData.isReferenceHidden) || attrs.escaped !== (hideData == null ? void 0 : hideData.hasPopperEscaped)) {\n setAttrs({\n placement: state.placement,\n referenceHidden: hideData == null ? void 0 : hideData.isReferenceHidden,\n escaped: hideData == null ? void 0 : hideData.hasPopperEscaped\n });\n }\n\n state.attributes.popper = {};\n }\n }])\n })\n });\n }, [attrs.placement, attrs.referenceHidden, attrs.escaped].concat(deps));\n return /*#__PURE__*/React.createElement(React.Fragment, null, children ? /*#__PURE__*/cloneElement(children, {\n ref: function ref(node) {\n mutableBox.ref = node;\n preserveRef(children.ref, node);\n }\n }) : null, mounted && /*#__PURE__*/createPortal(render ? render(toDataAttributes(attrs), singletonContent, mutableBox.instance) : content, mutableBox.container));\n }\n\n return Tippy;\n}\n\nfunction useSingletonGenerator(createSingleton) {\n return function useSingleton(_temp) {\n var _ref = _temp === void 0 ? {} : _temp,\n _ref$disabled = _ref.disabled,\n disabled = _ref$disabled === void 0 ? false : _ref$disabled,\n _ref$overrides = _ref.overrides,\n overrides = _ref$overrides === void 0 ? [] : _ref$overrides;\n\n var _useState = useState(false),\n mounted = _useState[0],\n setMounted = _useState[1];\n\n var mutableBox = useMutableBox({\n children: [],\n renders: 1\n });\n useIsomorphicLayoutEffect(function () {\n if (!mounted) {\n setMounted(true);\n return;\n }\n\n var children = mutableBox.children,\n sourceData = mutableBox.sourceData;\n\n if (!sourceData) {\n if (process.env.NODE_ENV !== 'production') {\n console.error(['@tippyjs/react: The `source` variable from `useSingleton()` has', 'not been passed to a component.'].join(' '));\n }\n\n return;\n }\n\n var instance = createSingleton(children.map(function (child) {\n return child.instance;\n }), Object.assign({}, sourceData.props, {\n popperOptions: sourceData.instance.props.popperOptions,\n overrides: overrides,\n plugins: [classNamePlugin].concat(sourceData.props.plugins || [])\n }));\n mutableBox.instance = instance;\n\n if (disabled) {\n instance.disable();\n }\n\n return function () {\n instance.destroy();\n mutableBox.children = children.filter(function (_ref2) {\n var instance = _ref2.instance;\n return !instance.state.isDestroyed;\n });\n };\n }, [mounted]);\n useIsomorphicLayoutEffect(function () {\n if (!mounted) {\n return;\n }\n\n if (mutableBox.renders === 1) {\n mutableBox.renders++;\n return;\n }\n\n var children = mutableBox.children,\n instance = mutableBox.instance,\n sourceData = mutableBox.sourceData;\n\n if (!(instance && sourceData)) {\n return;\n }\n\n var _sourceData$props = sourceData.props,\n content = _sourceData$props.content,\n props = _objectWithoutPropertiesLoose(_sourceData$props, [\"content\"]);\n\n instance.setProps(deepPreserveProps(instance.props, Object.assign({}, props, {\n overrides: overrides\n })));\n instance.setInstances(children.map(function (child) {\n return child.instance;\n }));\n\n if (disabled) {\n instance.disable();\n } else {\n instance.enable();\n }\n });\n return useMemo(function () {\n var source = {\n data: mutableBox,\n hook: function hook(data) {\n mutableBox.sourceData = data;\n mutableBox.setSingletonContent = data.setSingletonContent;\n },\n cleanup: function cleanup() {\n mutableBox.sourceData = null;\n }\n };\n var target = {\n hook: function hook(data) {\n var _mutableBox$instance, _mutableBox$instance2;\n\n mutableBox.children = mutableBox.children.filter(function (_ref3) {\n var instance = _ref3.instance;\n return data.instance !== instance;\n });\n mutableBox.children.push(data);\n\n if (((_mutableBox$instance = mutableBox.instance) == null ? void 0 : _mutableBox$instance.state.isMounted) && ((_mutableBox$instance2 = mutableBox.instance) == null ? void 0 : _mutableBox$instance2.state.$$activeSingletonInstance) === data.instance) {\n mutableBox.setSingletonContent == null ? void 0 : mutableBox.setSingletonContent(data.content);\n }\n\n if (mutableBox.instance && !mutableBox.instance.state.isDestroyed) {\n mutableBox.instance.setInstances(mutableBox.children.map(function (child) {\n return child.instance;\n }));\n }\n },\n cleanup: function cleanup(instance) {\n mutableBox.children = mutableBox.children.filter(function (data) {\n return data.instance !== instance;\n });\n\n if (mutableBox.instance && !mutableBox.instance.state.isDestroyed) {\n mutableBox.instance.setInstances(mutableBox.children.map(function (child) {\n return child.instance;\n }));\n }\n }\n };\n return [source, target];\n }, []);\n };\n}\n\nvar forwardRef = (function (Tippy, defaultProps) {\n return /*#__PURE__*/forwardRef$1(function TippyWrapper(_ref, _ref2) {\n var children = _ref.children,\n props = _objectWithoutPropertiesLoose(_ref, [\"children\"]);\n\n return (\n /*#__PURE__*/\n // If I spread them separately here, Babel adds the _extends ponyfill for\n // some reason\n React.createElement(Tippy, Object.assign({}, defaultProps, props), children ? /*#__PURE__*/cloneElement(children, {\n ref: function ref(node) {\n preserveRef(_ref2, node);\n preserveRef(children.ref, node);\n }\n }) : null)\n );\n });\n});\n\nvar useSingleton = /*#__PURE__*/useSingletonGenerator(createSingleton);\nvar index = /*#__PURE__*/forwardRef( /*#__PURE__*/TippyGenerator(tippy));\n\nexport default index;\nexport { useSingleton };\n//# sourceMappingURL=tippy-react.esm.js.map\n","'use strict';\n\nconst asn1 = exports;\n\nasn1.bignum = require('bn.js');\n\nasn1.define = require('./asn1/api').define;\nasn1.base = require('./asn1/base');\nasn1.constants = require('./asn1/constants');\nasn1.decoders = require('./asn1/decoders');\nasn1.encoders = require('./asn1/encoders');\n","'use strict';\n\nconst encoders = require('./encoders');\nconst decoders = require('./decoders');\nconst inherits = require('inherits');\n\nconst api = exports;\n\napi.define = function define(name, body) {\n return new Entity(name, body);\n};\n\nfunction Entity(name, body) {\n this.name = name;\n this.body = body;\n\n this.decoders = {};\n this.encoders = {};\n}\n\nEntity.prototype._createNamed = function createNamed(Base) {\n const name = this.name;\n\n function Generated(entity) {\n this._initNamed(entity, name);\n }\n inherits(Generated, Base);\n Generated.prototype._initNamed = function _initNamed(entity, name) {\n Base.call(this, entity, name);\n };\n\n return new Generated(this);\n};\n\nEntity.prototype._getDecoder = function _getDecoder(enc) {\n enc = enc || 'der';\n // Lazily create decoder\n if (!this.decoders.hasOwnProperty(enc))\n this.decoders[enc] = this._createNamed(decoders[enc]);\n return this.decoders[enc];\n};\n\nEntity.prototype.decode = function decode(data, enc, options) {\n return this._getDecoder(enc).decode(data, options);\n};\n\nEntity.prototype._getEncoder = function _getEncoder(enc) {\n enc = enc || 'der';\n // Lazily create encoder\n if (!this.encoders.hasOwnProperty(enc))\n this.encoders[enc] = this._createNamed(encoders[enc]);\n return this.encoders[enc];\n};\n\nEntity.prototype.encode = function encode(data, enc, /* internal */ reporter) {\n return this._getEncoder(enc).encode(data, reporter);\n};\n","'use strict';\n\nconst inherits = require('inherits');\nconst Reporter = require('../base/reporter').Reporter;\nconst Buffer = require('safer-buffer').Buffer;\n\nfunction DecoderBuffer(base, options) {\n Reporter.call(this, options);\n if (!Buffer.isBuffer(base)) {\n this.error('Input not Buffer');\n return;\n }\n\n this.base = base;\n this.offset = 0;\n this.length = base.length;\n}\ninherits(DecoderBuffer, Reporter);\nexports.DecoderBuffer = DecoderBuffer;\n\nDecoderBuffer.isDecoderBuffer = function isDecoderBuffer(data) {\n if (data instanceof DecoderBuffer) {\n return true;\n }\n\n // Or accept compatible API\n const isCompatible = typeof data === 'object' &&\n Buffer.isBuffer(data.base) &&\n data.constructor.name === 'DecoderBuffer' &&\n typeof data.offset === 'number' &&\n typeof data.length === 'number' &&\n typeof data.save === 'function' &&\n typeof data.restore === 'function' &&\n typeof data.isEmpty === 'function' &&\n typeof data.readUInt8 === 'function' &&\n typeof data.skip === 'function' &&\n typeof data.raw === 'function';\n\n return isCompatible;\n};\n\nDecoderBuffer.prototype.save = function save() {\n return { offset: this.offset, reporter: Reporter.prototype.save.call(this) };\n};\n\nDecoderBuffer.prototype.restore = function restore(save) {\n // Return skipped data\n const res = new DecoderBuffer(this.base);\n res.offset = save.offset;\n res.length = this.offset;\n\n this.offset = save.offset;\n Reporter.prototype.restore.call(this, save.reporter);\n\n return res;\n};\n\nDecoderBuffer.prototype.isEmpty = function isEmpty() {\n return this.offset === this.length;\n};\n\nDecoderBuffer.prototype.readUInt8 = function readUInt8(fail) {\n if (this.offset + 1 <= this.length)\n return this.base.readUInt8(this.offset++, true);\n else\n return this.error(fail || 'DecoderBuffer overrun');\n};\n\nDecoderBuffer.prototype.skip = function skip(bytes, fail) {\n if (!(this.offset + bytes <= this.length))\n return this.error(fail || 'DecoderBuffer overrun');\n\n const res = new DecoderBuffer(this.base);\n\n // Share reporter state\n res._reporterState = this._reporterState;\n\n res.offset = this.offset;\n res.length = this.offset + bytes;\n this.offset += bytes;\n return res;\n};\n\nDecoderBuffer.prototype.raw = function raw(save) {\n return this.base.slice(save ? save.offset : this.offset, this.length);\n};\n\nfunction EncoderBuffer(value, reporter) {\n if (Array.isArray(value)) {\n this.length = 0;\n this.value = value.map(function(item) {\n if (!EncoderBuffer.isEncoderBuffer(item))\n item = new EncoderBuffer(item, reporter);\n this.length += item.length;\n return item;\n }, this);\n } else if (typeof value === 'number') {\n if (!(0 <= value && value <= 0xff))\n return reporter.error('non-byte EncoderBuffer value');\n this.value = value;\n this.length = 1;\n } else if (typeof value === 'string') {\n this.value = value;\n this.length = Buffer.byteLength(value);\n } else if (Buffer.isBuffer(value)) {\n this.value = value;\n this.length = value.length;\n } else {\n return reporter.error('Unsupported type: ' + typeof value);\n }\n}\nexports.EncoderBuffer = EncoderBuffer;\n\nEncoderBuffer.isEncoderBuffer = function isEncoderBuffer(data) {\n if (data instanceof EncoderBuffer) {\n return true;\n }\n\n // Or accept compatible API\n const isCompatible = typeof data === 'object' &&\n data.constructor.name === 'EncoderBuffer' &&\n typeof data.length === 'number' &&\n typeof data.join === 'function';\n\n return isCompatible;\n};\n\nEncoderBuffer.prototype.join = function join(out, offset) {\n if (!out)\n out = Buffer.alloc(this.length);\n if (!offset)\n offset = 0;\n\n if (this.length === 0)\n return out;\n\n if (Array.isArray(this.value)) {\n this.value.forEach(function(item) {\n item.join(out, offset);\n offset += item.length;\n });\n } else {\n if (typeof this.value === 'number')\n out[offset] = this.value;\n else if (typeof this.value === 'string')\n out.write(this.value, offset);\n else if (Buffer.isBuffer(this.value))\n this.value.copy(out, offset);\n offset += this.length;\n }\n\n return out;\n};\n","'use strict';\n\nconst base = exports;\n\nbase.Reporter = require('./reporter').Reporter;\nbase.DecoderBuffer = require('./buffer').DecoderBuffer;\nbase.EncoderBuffer = require('./buffer').EncoderBuffer;\nbase.Node = require('./node');\n","'use strict';\n\nconst Reporter = require('../base/reporter').Reporter;\nconst EncoderBuffer = require('../base/buffer').EncoderBuffer;\nconst DecoderBuffer = require('../base/buffer').DecoderBuffer;\nconst assert = require('minimalistic-assert');\n\n// Supported tags\nconst tags = [\n 'seq', 'seqof', 'set', 'setof', 'objid', 'bool',\n 'gentime', 'utctime', 'null_', 'enum', 'int', 'objDesc',\n 'bitstr', 'bmpstr', 'charstr', 'genstr', 'graphstr', 'ia5str', 'iso646str',\n 'numstr', 'octstr', 'printstr', 't61str', 'unistr', 'utf8str', 'videostr'\n];\n\n// Public methods list\nconst methods = [\n 'key', 'obj', 'use', 'optional', 'explicit', 'implicit', 'def', 'choice',\n 'any', 'contains'\n].concat(tags);\n\n// Overrided methods list\nconst overrided = [\n '_peekTag', '_decodeTag', '_use',\n '_decodeStr', '_decodeObjid', '_decodeTime',\n '_decodeNull', '_decodeInt', '_decodeBool', '_decodeList',\n\n '_encodeComposite', '_encodeStr', '_encodeObjid', '_encodeTime',\n '_encodeNull', '_encodeInt', '_encodeBool'\n];\n\nfunction Node(enc, parent, name) {\n const state = {};\n this._baseState = state;\n\n state.name = name;\n state.enc = enc;\n\n state.parent = parent || null;\n state.children = null;\n\n // State\n state.tag = null;\n state.args = null;\n state.reverseArgs = null;\n state.choice = null;\n state.optional = false;\n state.any = false;\n state.obj = false;\n state.use = null;\n state.useDecoder = null;\n state.key = null;\n state['default'] = null;\n state.explicit = null;\n state.implicit = null;\n state.contains = null;\n\n // Should create new instance on each method\n if (!state.parent) {\n state.children = [];\n this._wrap();\n }\n}\nmodule.exports = Node;\n\nconst stateProps = [\n 'enc', 'parent', 'children', 'tag', 'args', 'reverseArgs', 'choice',\n 'optional', 'any', 'obj', 'use', 'alteredUse', 'key', 'default', 'explicit',\n 'implicit', 'contains'\n];\n\nNode.prototype.clone = function clone() {\n const state = this._baseState;\n const cstate = {};\n stateProps.forEach(function(prop) {\n cstate[prop] = state[prop];\n });\n const res = new this.constructor(cstate.parent);\n res._baseState = cstate;\n return res;\n};\n\nNode.prototype._wrap = function wrap() {\n const state = this._baseState;\n methods.forEach(function(method) {\n this[method] = function _wrappedMethod() {\n const clone = new this.constructor(this);\n state.children.push(clone);\n return clone[method].apply(clone, arguments);\n };\n }, this);\n};\n\nNode.prototype._init = function init(body) {\n const state = this._baseState;\n\n assert(state.parent === null);\n body.call(this);\n\n // Filter children\n state.children = state.children.filter(function(child) {\n return child._baseState.parent === this;\n }, this);\n assert.equal(state.children.length, 1, 'Root node can have only one child');\n};\n\nNode.prototype._useArgs = function useArgs(args) {\n const state = this._baseState;\n\n // Filter children and args\n const children = args.filter(function(arg) {\n return arg instanceof this.constructor;\n }, this);\n args = args.filter(function(arg) {\n return !(arg instanceof this.constructor);\n }, this);\n\n if (children.length !== 0) {\n assert(state.children === null);\n state.children = children;\n\n // Replace parent to maintain backward link\n children.forEach(function(child) {\n child._baseState.parent = this;\n }, this);\n }\n if (args.length !== 0) {\n assert(state.args === null);\n state.args = args;\n state.reverseArgs = args.map(function(arg) {\n if (typeof arg !== 'object' || arg.constructor !== Object)\n return arg;\n\n const res = {};\n Object.keys(arg).forEach(function(key) {\n if (key == (key | 0))\n key |= 0;\n const value = arg[key];\n res[value] = key;\n });\n return res;\n });\n }\n};\n\n//\n// Overrided methods\n//\n\noverrided.forEach(function(method) {\n Node.prototype[method] = function _overrided() {\n const state = this._baseState;\n throw new Error(method + ' not implemented for encoding: ' + state.enc);\n };\n});\n\n//\n// Public methods\n//\n\ntags.forEach(function(tag) {\n Node.prototype[tag] = function _tagMethod() {\n const state = this._baseState;\n const args = Array.prototype.slice.call(arguments);\n\n assert(state.tag === null);\n state.tag = tag;\n\n this._useArgs(args);\n\n return this;\n };\n});\n\nNode.prototype.use = function use(item) {\n assert(item);\n const state = this._baseState;\n\n assert(state.use === null);\n state.use = item;\n\n return this;\n};\n\nNode.prototype.optional = function optional() {\n const state = this._baseState;\n\n state.optional = true;\n\n return this;\n};\n\nNode.prototype.def = function def(val) {\n const state = this._baseState;\n\n assert(state['default'] === null);\n state['default'] = val;\n state.optional = true;\n\n return this;\n};\n\nNode.prototype.explicit = function explicit(num) {\n const state = this._baseState;\n\n assert(state.explicit === null && state.implicit === null);\n state.explicit = num;\n\n return this;\n};\n\nNode.prototype.implicit = function implicit(num) {\n const state = this._baseState;\n\n assert(state.explicit === null && state.implicit === null);\n state.implicit = num;\n\n return this;\n};\n\nNode.prototype.obj = function obj() {\n const state = this._baseState;\n const args = Array.prototype.slice.call(arguments);\n\n state.obj = true;\n\n if (args.length !== 0)\n this._useArgs(args);\n\n return this;\n};\n\nNode.prototype.key = function key(newKey) {\n const state = this._baseState;\n\n assert(state.key === null);\n state.key = newKey;\n\n return this;\n};\n\nNode.prototype.any = function any() {\n const state = this._baseState;\n\n state.any = true;\n\n return this;\n};\n\nNode.prototype.choice = function choice(obj) {\n const state = this._baseState;\n\n assert(state.choice === null);\n state.choice = obj;\n this._useArgs(Object.keys(obj).map(function(key) {\n return obj[key];\n }));\n\n return this;\n};\n\nNode.prototype.contains = function contains(item) {\n const state = this._baseState;\n\n assert(state.use === null);\n state.contains = item;\n\n return this;\n};\n\n//\n// Decoding\n//\n\nNode.prototype._decode = function decode(input, options) {\n const state = this._baseState;\n\n // Decode root node\n if (state.parent === null)\n return input.wrapResult(state.children[0]._decode(input, options));\n\n let result = state['default'];\n let present = true;\n\n let prevKey = null;\n if (state.key !== null)\n prevKey = input.enterKey(state.key);\n\n // Check if tag is there\n if (state.optional) {\n let tag = null;\n if (state.explicit !== null)\n tag = state.explicit;\n else if (state.implicit !== null)\n tag = state.implicit;\n else if (state.tag !== null)\n tag = state.tag;\n\n if (tag === null && !state.any) {\n // Trial and Error\n const save = input.save();\n try {\n if (state.choice === null)\n this._decodeGeneric(state.tag, input, options);\n else\n this._decodeChoice(input, options);\n present = true;\n } catch (e) {\n present = false;\n }\n input.restore(save);\n } else {\n present = this._peekTag(input, tag, state.any);\n\n if (input.isError(present))\n return present;\n }\n }\n\n // Push object on stack\n let prevObj;\n if (state.obj && present)\n prevObj = input.enterObject();\n\n if (present) {\n // Unwrap explicit values\n if (state.explicit !== null) {\n const explicit = this._decodeTag(input, state.explicit);\n if (input.isError(explicit))\n return explicit;\n input = explicit;\n }\n\n const start = input.offset;\n\n // Unwrap implicit and normal values\n if (state.use === null && state.choice === null) {\n let save;\n if (state.any)\n save = input.save();\n const body = this._decodeTag(\n input,\n state.implicit !== null ? state.implicit : state.tag,\n state.any\n );\n if (input.isError(body))\n return body;\n\n if (state.any)\n result = input.raw(save);\n else\n input = body;\n }\n\n if (options && options.track && state.tag !== null)\n options.track(input.path(), start, input.length, 'tagged');\n\n if (options && options.track && state.tag !== null)\n options.track(input.path(), input.offset, input.length, 'content');\n\n // Select proper method for tag\n if (state.any) {\n // no-op\n } else if (state.choice === null) {\n result = this._decodeGeneric(state.tag, input, options);\n } else {\n result = this._decodeChoice(input, options);\n }\n\n if (input.isError(result))\n return result;\n\n // Decode children\n if (!state.any && state.choice === null && state.children !== null) {\n state.children.forEach(function decodeChildren(child) {\n // NOTE: We are ignoring errors here, to let parser continue with other\n // parts of encoded data\n child._decode(input, options);\n });\n }\n\n // Decode contained/encoded by schema, only in bit or octet strings\n if (state.contains && (state.tag === 'octstr' || state.tag === 'bitstr')) {\n const data = new DecoderBuffer(result);\n result = this._getUse(state.contains, input._reporterState.obj)\n ._decode(data, options);\n }\n }\n\n // Pop object\n if (state.obj && present)\n result = input.leaveObject(prevObj);\n\n // Set key\n if (state.key !== null && (result !== null || present === true))\n input.leaveKey(prevKey, state.key, result);\n else if (prevKey !== null)\n input.exitKey(prevKey);\n\n return result;\n};\n\nNode.prototype._decodeGeneric = function decodeGeneric(tag, input, options) {\n const state = this._baseState;\n\n if (tag === 'seq' || tag === 'set')\n return null;\n if (tag === 'seqof' || tag === 'setof')\n return this._decodeList(input, tag, state.args[0], options);\n else if (/str$/.test(tag))\n return this._decodeStr(input, tag, options);\n else if (tag === 'objid' && state.args)\n return this._decodeObjid(input, state.args[0], state.args[1], options);\n else if (tag === 'objid')\n return this._decodeObjid(input, null, null, options);\n else if (tag === 'gentime' || tag === 'utctime')\n return this._decodeTime(input, tag, options);\n else if (tag === 'null_')\n return this._decodeNull(input, options);\n else if (tag === 'bool')\n return this._decodeBool(input, options);\n else if (tag === 'objDesc')\n return this._decodeStr(input, tag, options);\n else if (tag === 'int' || tag === 'enum')\n return this._decodeInt(input, state.args && state.args[0], options);\n\n if (state.use !== null) {\n return this._getUse(state.use, input._reporterState.obj)\n ._decode(input, options);\n } else {\n return input.error('unknown tag: ' + tag);\n }\n};\n\nNode.prototype._getUse = function _getUse(entity, obj) {\n\n const state = this._baseState;\n // Create altered use decoder if implicit is set\n state.useDecoder = this._use(entity, obj);\n assert(state.useDecoder._baseState.parent === null);\n state.useDecoder = state.useDecoder._baseState.children[0];\n if (state.implicit !== state.useDecoder._baseState.implicit) {\n state.useDecoder = state.useDecoder.clone();\n state.useDecoder._baseState.implicit = state.implicit;\n }\n return state.useDecoder;\n};\n\nNode.prototype._decodeChoice = function decodeChoice(input, options) {\n const state = this._baseState;\n let result = null;\n let match = false;\n\n Object.keys(state.choice).some(function(key) {\n const save = input.save();\n const node = state.choice[key];\n try {\n const value = node._decode(input, options);\n if (input.isError(value))\n return false;\n\n result = { type: key, value: value };\n match = true;\n } catch (e) {\n input.restore(save);\n return false;\n }\n return true;\n }, this);\n\n if (!match)\n return input.error('Choice not matched');\n\n return result;\n};\n\n//\n// Encoding\n//\n\nNode.prototype._createEncoderBuffer = function createEncoderBuffer(data) {\n return new EncoderBuffer(data, this.reporter);\n};\n\nNode.prototype._encode = function encode(data, reporter, parent) {\n const state = this._baseState;\n if (state['default'] !== null && state['default'] === data)\n return;\n\n const result = this._encodeValue(data, reporter, parent);\n if (result === undefined)\n return;\n\n if (this._skipDefault(result, reporter, parent))\n return;\n\n return result;\n};\n\nNode.prototype._encodeValue = function encode(data, reporter, parent) {\n const state = this._baseState;\n\n // Decode root node\n if (state.parent === null)\n return state.children[0]._encode(data, reporter || new Reporter());\n\n let result = null;\n\n // Set reporter to share it with a child class\n this.reporter = reporter;\n\n // Check if data is there\n if (state.optional && data === undefined) {\n if (state['default'] !== null)\n data = state['default'];\n else\n return;\n }\n\n // Encode children first\n let content = null;\n let primitive = false;\n if (state.any) {\n // Anything that was given is translated to buffer\n result = this._createEncoderBuffer(data);\n } else if (state.choice) {\n result = this._encodeChoice(data, reporter);\n } else if (state.contains) {\n content = this._getUse(state.contains, parent)._encode(data, reporter);\n primitive = true;\n } else if (state.children) {\n content = state.children.map(function(child) {\n if (child._baseState.tag === 'null_')\n return child._encode(null, reporter, data);\n\n if (child._baseState.key === null)\n return reporter.error('Child should have a key');\n const prevKey = reporter.enterKey(child._baseState.key);\n\n if (typeof data !== 'object')\n return reporter.error('Child expected, but input is not object');\n\n const res = child._encode(data[child._baseState.key], reporter, data);\n reporter.leaveKey(prevKey);\n\n return res;\n }, this).filter(function(child) {\n return child;\n });\n content = this._createEncoderBuffer(content);\n } else {\n if (state.tag === 'seqof' || state.tag === 'setof') {\n // TODO(indutny): this should be thrown on DSL level\n if (!(state.args && state.args.length === 1))\n return reporter.error('Too many args for : ' + state.tag);\n\n if (!Array.isArray(data))\n return reporter.error('seqof/setof, but data is not Array');\n\n const child = this.clone();\n child._baseState.implicit = null;\n content = this._createEncoderBuffer(data.map(function(item) {\n const state = this._baseState;\n\n return this._getUse(state.args[0], data)._encode(item, reporter);\n }, child));\n } else if (state.use !== null) {\n result = this._getUse(state.use, parent)._encode(data, reporter);\n } else {\n content = this._encodePrimitive(state.tag, data);\n primitive = true;\n }\n }\n\n // Encode data itself\n if (!state.any && state.choice === null) {\n const tag = state.implicit !== null ? state.implicit : state.tag;\n const cls = state.implicit === null ? 'universal' : 'context';\n\n if (tag === null) {\n if (state.use === null)\n reporter.error('Tag could be omitted only for .use()');\n } else {\n if (state.use === null)\n result = this._encodeComposite(tag, primitive, cls, content);\n }\n }\n\n // Wrap in explicit\n if (state.explicit !== null)\n result = this._encodeComposite(state.explicit, false, 'context', result);\n\n return result;\n};\n\nNode.prototype._encodeChoice = function encodeChoice(data, reporter) {\n const state = this._baseState;\n\n const node = state.choice[data.type];\n if (!node) {\n assert(\n false,\n data.type + ' not found in ' +\n JSON.stringify(Object.keys(state.choice)));\n }\n return node._encode(data.value, reporter);\n};\n\nNode.prototype._encodePrimitive = function encodePrimitive(tag, data) {\n const state = this._baseState;\n\n if (/str$/.test(tag))\n return this._encodeStr(data, tag);\n else if (tag === 'objid' && state.args)\n return this._encodeObjid(data, state.reverseArgs[0], state.args[1]);\n else if (tag === 'objid')\n return this._encodeObjid(data, null, null);\n else if (tag === 'gentime' || tag === 'utctime')\n return this._encodeTime(data, tag);\n else if (tag === 'null_')\n return this._encodeNull();\n else if (tag === 'int' || tag === 'enum')\n return this._encodeInt(data, state.args && state.reverseArgs[0]);\n else if (tag === 'bool')\n return this._encodeBool(data);\n else if (tag === 'objDesc')\n return this._encodeStr(data, tag);\n else\n throw new Error('Unsupported tag: ' + tag);\n};\n\nNode.prototype._isNumstr = function isNumstr(str) {\n return /^[0-9 ]*$/.test(str);\n};\n\nNode.prototype._isPrintstr = function isPrintstr(str) {\n return /^[A-Za-z0-9 '()+,-./:=?]*$/.test(str);\n};\n","'use strict';\n\nconst inherits = require('inherits');\n\nfunction Reporter(options) {\n this._reporterState = {\n obj: null,\n path: [],\n options: options || {},\n errors: []\n };\n}\nexports.Reporter = Reporter;\n\nReporter.prototype.isError = function isError(obj) {\n return obj instanceof ReporterError;\n};\n\nReporter.prototype.save = function save() {\n const state = this._reporterState;\n\n return { obj: state.obj, pathLen: state.path.length };\n};\n\nReporter.prototype.restore = function restore(data) {\n const state = this._reporterState;\n\n state.obj = data.obj;\n state.path = state.path.slice(0, data.pathLen);\n};\n\nReporter.prototype.enterKey = function enterKey(key) {\n return this._reporterState.path.push(key);\n};\n\nReporter.prototype.exitKey = function exitKey(index) {\n const state = this._reporterState;\n\n state.path = state.path.slice(0, index - 1);\n};\n\nReporter.prototype.leaveKey = function leaveKey(index, key, value) {\n const state = this._reporterState;\n\n this.exitKey(index);\n if (state.obj !== null)\n state.obj[key] = value;\n};\n\nReporter.prototype.path = function path() {\n return this._reporterState.path.join('/');\n};\n\nReporter.prototype.enterObject = function enterObject() {\n const state = this._reporterState;\n\n const prev = state.obj;\n state.obj = {};\n return prev;\n};\n\nReporter.prototype.leaveObject = function leaveObject(prev) {\n const state = this._reporterState;\n\n const now = state.obj;\n state.obj = prev;\n return now;\n};\n\nReporter.prototype.error = function error(msg) {\n let err;\n const state = this._reporterState;\n\n const inherited = msg instanceof ReporterError;\n if (inherited) {\n err = msg;\n } else {\n err = new ReporterError(state.path.map(function(elem) {\n return '[' + JSON.stringify(elem) + ']';\n }).join(''), msg.message || msg, msg.stack);\n }\n\n if (!state.options.partial)\n throw err;\n\n if (!inherited)\n state.errors.push(err);\n\n return err;\n};\n\nReporter.prototype.wrapResult = function wrapResult(result) {\n const state = this._reporterState;\n if (!state.options.partial)\n return result;\n\n return {\n result: this.isError(result) ? null : result,\n errors: state.errors\n };\n};\n\nfunction ReporterError(path, msg) {\n this.path = path;\n this.rethrow(msg);\n}\ninherits(ReporterError, Error);\n\nReporterError.prototype.rethrow = function rethrow(msg) {\n this.message = msg + ' at: ' + (this.path || '(shallow)');\n if (Error.captureStackTrace)\n Error.captureStackTrace(this, ReporterError);\n\n if (!this.stack) {\n try {\n // IE only adds stack when thrown\n throw new Error(this.message);\n } catch (e) {\n this.stack = e.stack;\n }\n }\n return this;\n};\n","'use strict';\n\n// Helper\nfunction reverse(map) {\n const res = {};\n\n Object.keys(map).forEach(function(key) {\n // Convert key to integer if it is stringified\n if ((key | 0) == key)\n key = key | 0;\n\n const value = map[key];\n res[value] = key;\n });\n\n return res;\n}\n\nexports.tagClass = {\n 0: 'universal',\n 1: 'application',\n 2: 'context',\n 3: 'private'\n};\nexports.tagClassByName = reverse(exports.tagClass);\n\nexports.tag = {\n 0x00: 'end',\n 0x01: 'bool',\n 0x02: 'int',\n 0x03: 'bitstr',\n 0x04: 'octstr',\n 0x05: 'null_',\n 0x06: 'objid',\n 0x07: 'objDesc',\n 0x08: 'external',\n 0x09: 'real',\n 0x0a: 'enum',\n 0x0b: 'embed',\n 0x0c: 'utf8str',\n 0x0d: 'relativeOid',\n 0x10: 'seq',\n 0x11: 'set',\n 0x12: 'numstr',\n 0x13: 'printstr',\n 0x14: 't61str',\n 0x15: 'videostr',\n 0x16: 'ia5str',\n 0x17: 'utctime',\n 0x18: 'gentime',\n 0x19: 'graphstr',\n 0x1a: 'iso646str',\n 0x1b: 'genstr',\n 0x1c: 'unistr',\n 0x1d: 'charstr',\n 0x1e: 'bmpstr'\n};\nexports.tagByName = reverse(exports.tag);\n","'use strict';\n\nconst constants = exports;\n\n// Helper\nconstants._reverse = function reverse(map) {\n const res = {};\n\n Object.keys(map).forEach(function(key) {\n // Convert key to integer if it is stringified\n if ((key | 0) == key)\n key = key | 0;\n\n const value = map[key];\n res[value] = key;\n });\n\n return res;\n};\n\nconstants.der = require('./der');\n","'use strict';\n\nconst inherits = require('inherits');\n\nconst bignum = require('bn.js');\nconst DecoderBuffer = require('../base/buffer').DecoderBuffer;\nconst Node = require('../base/node');\n\n// Import DER constants\nconst der = require('../constants/der');\n\nfunction DERDecoder(entity) {\n this.enc = 'der';\n this.name = entity.name;\n this.entity = entity;\n\n // Construct base tree\n this.tree = new DERNode();\n this.tree._init(entity.body);\n}\nmodule.exports = DERDecoder;\n\nDERDecoder.prototype.decode = function decode(data, options) {\n if (!DecoderBuffer.isDecoderBuffer(data)) {\n data = new DecoderBuffer(data, options);\n }\n\n return this.tree._decode(data, options);\n};\n\n// Tree methods\n\nfunction DERNode(parent) {\n Node.call(this, 'der', parent);\n}\ninherits(DERNode, Node);\n\nDERNode.prototype._peekTag = function peekTag(buffer, tag, any) {\n if (buffer.isEmpty())\n return false;\n\n const state = buffer.save();\n const decodedTag = derDecodeTag(buffer, 'Failed to peek tag: \"' + tag + '\"');\n if (buffer.isError(decodedTag))\n return decodedTag;\n\n buffer.restore(state);\n\n return decodedTag.tag === tag || decodedTag.tagStr === tag ||\n (decodedTag.tagStr + 'of') === tag || any;\n};\n\nDERNode.prototype._decodeTag = function decodeTag(buffer, tag, any) {\n const decodedTag = derDecodeTag(buffer,\n 'Failed to decode tag of \"' + tag + '\"');\n if (buffer.isError(decodedTag))\n return decodedTag;\n\n let len = derDecodeLen(buffer,\n decodedTag.primitive,\n 'Failed to get length of \"' + tag + '\"');\n\n // Failure\n if (buffer.isError(len))\n return len;\n\n if (!any &&\n decodedTag.tag !== tag &&\n decodedTag.tagStr !== tag &&\n decodedTag.tagStr + 'of' !== tag) {\n return buffer.error('Failed to match tag: \"' + tag + '\"');\n }\n\n if (decodedTag.primitive || len !== null)\n return buffer.skip(len, 'Failed to match body of: \"' + tag + '\"');\n\n // Indefinite length... find END tag\n const state = buffer.save();\n const res = this._skipUntilEnd(\n buffer,\n 'Failed to skip indefinite length body: \"' + this.tag + '\"');\n if (buffer.isError(res))\n return res;\n\n len = buffer.offset - state.offset;\n buffer.restore(state);\n return buffer.skip(len, 'Failed to match body of: \"' + tag + '\"');\n};\n\nDERNode.prototype._skipUntilEnd = function skipUntilEnd(buffer, fail) {\n for (;;) {\n const tag = derDecodeTag(buffer, fail);\n if (buffer.isError(tag))\n return tag;\n const len = derDecodeLen(buffer, tag.primitive, fail);\n if (buffer.isError(len))\n return len;\n\n let res;\n if (tag.primitive || len !== null)\n res = buffer.skip(len);\n else\n res = this._skipUntilEnd(buffer, fail);\n\n // Failure\n if (buffer.isError(res))\n return res;\n\n if (tag.tagStr === 'end')\n break;\n }\n};\n\nDERNode.prototype._decodeList = function decodeList(buffer, tag, decoder,\n options) {\n const result = [];\n while (!buffer.isEmpty()) {\n const possibleEnd = this._peekTag(buffer, 'end');\n if (buffer.isError(possibleEnd))\n return possibleEnd;\n\n const res = decoder.decode(buffer, 'der', options);\n if (buffer.isError(res) && possibleEnd)\n break;\n result.push(res);\n }\n return result;\n};\n\nDERNode.prototype._decodeStr = function decodeStr(buffer, tag) {\n if (tag === 'bitstr') {\n const unused = buffer.readUInt8();\n if (buffer.isError(unused))\n return unused;\n return { unused: unused, data: buffer.raw() };\n } else if (tag === 'bmpstr') {\n const raw = buffer.raw();\n if (raw.length % 2 === 1)\n return buffer.error('Decoding of string type: bmpstr length mismatch');\n\n let str = '';\n for (let i = 0; i < raw.length / 2; i++) {\n str += String.fromCharCode(raw.readUInt16BE(i * 2));\n }\n return str;\n } else if (tag === 'numstr') {\n const numstr = buffer.raw().toString('ascii');\n if (!this._isNumstr(numstr)) {\n return buffer.error('Decoding of string type: ' +\n 'numstr unsupported characters');\n }\n return numstr;\n } else if (tag === 'octstr') {\n return buffer.raw();\n } else if (tag === 'objDesc') {\n return buffer.raw();\n } else if (tag === 'printstr') {\n const printstr = buffer.raw().toString('ascii');\n if (!this._isPrintstr(printstr)) {\n return buffer.error('Decoding of string type: ' +\n 'printstr unsupported characters');\n }\n return printstr;\n } else if (/str$/.test(tag)) {\n return buffer.raw().toString();\n } else {\n return buffer.error('Decoding of string type: ' + tag + ' unsupported');\n }\n};\n\nDERNode.prototype._decodeObjid = function decodeObjid(buffer, values, relative) {\n let result;\n const identifiers = [];\n let ident = 0;\n let subident = 0;\n while (!buffer.isEmpty()) {\n subident = buffer.readUInt8();\n ident <<= 7;\n ident |= subident & 0x7f;\n if ((subident & 0x80) === 0) {\n identifiers.push(ident);\n ident = 0;\n }\n }\n if (subident & 0x80)\n identifiers.push(ident);\n\n const first = (identifiers[0] / 40) | 0;\n const second = identifiers[0] % 40;\n\n if (relative)\n result = identifiers;\n else\n result = [first, second].concat(identifiers.slice(1));\n\n if (values) {\n let tmp = values[result.join(' ')];\n if (tmp === undefined)\n tmp = values[result.join('.')];\n if (tmp !== undefined)\n result = tmp;\n }\n\n return result;\n};\n\nDERNode.prototype._decodeTime = function decodeTime(buffer, tag) {\n const str = buffer.raw().toString();\n\n let year;\n let mon;\n let day;\n let hour;\n let min;\n let sec;\n if (tag === 'gentime') {\n year = str.slice(0, 4) | 0;\n mon = str.slice(4, 6) | 0;\n day = str.slice(6, 8) | 0;\n hour = str.slice(8, 10) | 0;\n min = str.slice(10, 12) | 0;\n sec = str.slice(12, 14) | 0;\n } else if (tag === 'utctime') {\n year = str.slice(0, 2) | 0;\n mon = str.slice(2, 4) | 0;\n day = str.slice(4, 6) | 0;\n hour = str.slice(6, 8) | 0;\n min = str.slice(8, 10) | 0;\n sec = str.slice(10, 12) | 0;\n if (year < 70)\n year = 2000 + year;\n else\n year = 1900 + year;\n } else {\n return buffer.error('Decoding ' + tag + ' time is not supported yet');\n }\n\n return Date.UTC(year, mon - 1, day, hour, min, sec, 0);\n};\n\nDERNode.prototype._decodeNull = function decodeNull() {\n return null;\n};\n\nDERNode.prototype._decodeBool = function decodeBool(buffer) {\n const res = buffer.readUInt8();\n if (buffer.isError(res))\n return res;\n else\n return res !== 0;\n};\n\nDERNode.prototype._decodeInt = function decodeInt(buffer, values) {\n // Bigint, return as it is (assume big endian)\n const raw = buffer.raw();\n let res = new bignum(raw);\n\n if (values)\n res = values[res.toString(10)] || res;\n\n return res;\n};\n\nDERNode.prototype._use = function use(entity, obj) {\n if (typeof entity === 'function')\n entity = entity(obj);\n return entity._getDecoder('der').tree;\n};\n\n// Utility methods\n\nfunction derDecodeTag(buf, fail) {\n let tag = buf.readUInt8(fail);\n if (buf.isError(tag))\n return tag;\n\n const cls = der.tagClass[tag >> 6];\n const primitive = (tag & 0x20) === 0;\n\n // Multi-octet tag - load\n if ((tag & 0x1f) === 0x1f) {\n let oct = tag;\n tag = 0;\n while ((oct & 0x80) === 0x80) {\n oct = buf.readUInt8(fail);\n if (buf.isError(oct))\n return oct;\n\n tag <<= 7;\n tag |= oct & 0x7f;\n }\n } else {\n tag &= 0x1f;\n }\n const tagStr = der.tag[tag];\n\n return {\n cls: cls,\n primitive: primitive,\n tag: tag,\n tagStr: tagStr\n };\n}\n\nfunction derDecodeLen(buf, primitive, fail) {\n let len = buf.readUInt8(fail);\n if (buf.isError(len))\n return len;\n\n // Indefinite form\n if (!primitive && len === 0x80)\n return null;\n\n // Definite form\n if ((len & 0x80) === 0) {\n // Short form\n return len;\n }\n\n // Long form\n const num = len & 0x7f;\n if (num > 4)\n return buf.error('length octect is too long');\n\n len = 0;\n for (let i = 0; i < num; i++) {\n len <<= 8;\n const j = buf.readUInt8(fail);\n if (buf.isError(j))\n return j;\n len |= j;\n }\n\n return len;\n}\n","'use strict';\n\nconst decoders = exports;\n\ndecoders.der = require('./der');\ndecoders.pem = require('./pem');\n","'use strict';\n\nconst inherits = require('inherits');\nconst Buffer = require('safer-buffer').Buffer;\n\nconst DERDecoder = require('./der');\n\nfunction PEMDecoder(entity) {\n DERDecoder.call(this, entity);\n this.enc = 'pem';\n}\ninherits(PEMDecoder, DERDecoder);\nmodule.exports = PEMDecoder;\n\nPEMDecoder.prototype.decode = function decode(data, options) {\n const lines = data.toString().split(/[\\r\\n]+/g);\n\n const label = options.label.toUpperCase();\n\n const re = /^-----(BEGIN|END) ([^-]+)-----$/;\n let start = -1;\n let end = -1;\n for (let i = 0; i < lines.length; i++) {\n const match = lines[i].match(re);\n if (match === null)\n continue;\n\n if (match[2] !== label)\n continue;\n\n if (start === -1) {\n if (match[1] !== 'BEGIN')\n break;\n start = i;\n } else {\n if (match[1] !== 'END')\n break;\n end = i;\n break;\n }\n }\n if (start === -1 || end === -1)\n throw new Error('PEM section not found for: ' + label);\n\n const base64 = lines.slice(start + 1, end).join('');\n // Remove excessive symbols\n base64.replace(/[^a-z0-9+/=]+/gi, '');\n\n const input = Buffer.from(base64, 'base64');\n return DERDecoder.prototype.decode.call(this, input, options);\n};\n","'use strict';\n\nconst inherits = require('inherits');\nconst Buffer = require('safer-buffer').Buffer;\nconst Node = require('../base/node');\n\n// Import DER constants\nconst der = require('../constants/der');\n\nfunction DEREncoder(entity) {\n this.enc = 'der';\n this.name = entity.name;\n this.entity = entity;\n\n // Construct base tree\n this.tree = new DERNode();\n this.tree._init(entity.body);\n}\nmodule.exports = DEREncoder;\n\nDEREncoder.prototype.encode = function encode(data, reporter) {\n return this.tree._encode(data, reporter).join();\n};\n\n// Tree methods\n\nfunction DERNode(parent) {\n Node.call(this, 'der', parent);\n}\ninherits(DERNode, Node);\n\nDERNode.prototype._encodeComposite = function encodeComposite(tag,\n primitive,\n cls,\n content) {\n const encodedTag = encodeTag(tag, primitive, cls, this.reporter);\n\n // Short form\n if (content.length < 0x80) {\n const header = Buffer.alloc(2);\n header[0] = encodedTag;\n header[1] = content.length;\n return this._createEncoderBuffer([ header, content ]);\n }\n\n // Long form\n // Count octets required to store length\n let lenOctets = 1;\n for (let i = content.length; i >= 0x100; i >>= 8)\n lenOctets++;\n\n const header = Buffer.alloc(1 + 1 + lenOctets);\n header[0] = encodedTag;\n header[1] = 0x80 | lenOctets;\n\n for (let i = 1 + lenOctets, j = content.length; j > 0; i--, j >>= 8)\n header[i] = j & 0xff;\n\n return this._createEncoderBuffer([ header, content ]);\n};\n\nDERNode.prototype._encodeStr = function encodeStr(str, tag) {\n if (tag === 'bitstr') {\n return this._createEncoderBuffer([ str.unused | 0, str.data ]);\n } else if (tag === 'bmpstr') {\n const buf = Buffer.alloc(str.length * 2);\n for (let i = 0; i < str.length; i++) {\n buf.writeUInt16BE(str.charCodeAt(i), i * 2);\n }\n return this._createEncoderBuffer(buf);\n } else if (tag === 'numstr') {\n if (!this._isNumstr(str)) {\n return this.reporter.error('Encoding of string type: numstr supports ' +\n 'only digits and space');\n }\n return this._createEncoderBuffer(str);\n } else if (tag === 'printstr') {\n if (!this._isPrintstr(str)) {\n return this.reporter.error('Encoding of string type: printstr supports ' +\n 'only latin upper and lower case letters, ' +\n 'digits, space, apostrophe, left and rigth ' +\n 'parenthesis, plus sign, comma, hyphen, ' +\n 'dot, slash, colon, equal sign, ' +\n 'question mark');\n }\n return this._createEncoderBuffer(str);\n } else if (/str$/.test(tag)) {\n return this._createEncoderBuffer(str);\n } else if (tag === 'objDesc') {\n return this._createEncoderBuffer(str);\n } else {\n return this.reporter.error('Encoding of string type: ' + tag +\n ' unsupported');\n }\n};\n\nDERNode.prototype._encodeObjid = function encodeObjid(id, values, relative) {\n if (typeof id === 'string') {\n if (!values)\n return this.reporter.error('string objid given, but no values map found');\n if (!values.hasOwnProperty(id))\n return this.reporter.error('objid not found in values map');\n id = values[id].split(/[\\s.]+/g);\n for (let i = 0; i < id.length; i++)\n id[i] |= 0;\n } else if (Array.isArray(id)) {\n id = id.slice();\n for (let i = 0; i < id.length; i++)\n id[i] |= 0;\n }\n\n if (!Array.isArray(id)) {\n return this.reporter.error('objid() should be either array or string, ' +\n 'got: ' + JSON.stringify(id));\n }\n\n if (!relative) {\n if (id[1] >= 40)\n return this.reporter.error('Second objid identifier OOB');\n id.splice(0, 2, id[0] * 40 + id[1]);\n }\n\n // Count number of octets\n let size = 0;\n for (let i = 0; i < id.length; i++) {\n let ident = id[i];\n for (size++; ident >= 0x80; ident >>= 7)\n size++;\n }\n\n const objid = Buffer.alloc(size);\n let offset = objid.length - 1;\n for (let i = id.length - 1; i >= 0; i--) {\n let ident = id[i];\n objid[offset--] = ident & 0x7f;\n while ((ident >>= 7) > 0)\n objid[offset--] = 0x80 | (ident & 0x7f);\n }\n\n return this._createEncoderBuffer(objid);\n};\n\nfunction two(num) {\n if (num < 10)\n return '0' + num;\n else\n return num;\n}\n\nDERNode.prototype._encodeTime = function encodeTime(time, tag) {\n let str;\n const date = new Date(time);\n\n if (tag === 'gentime') {\n str = [\n two(date.getUTCFullYear()),\n two(date.getUTCMonth() + 1),\n two(date.getUTCDate()),\n two(date.getUTCHours()),\n two(date.getUTCMinutes()),\n two(date.getUTCSeconds()),\n 'Z'\n ].join('');\n } else if (tag === 'utctime') {\n str = [\n two(date.getUTCFullYear() % 100),\n two(date.getUTCMonth() + 1),\n two(date.getUTCDate()),\n two(date.getUTCHours()),\n two(date.getUTCMinutes()),\n two(date.getUTCSeconds()),\n 'Z'\n ].join('');\n } else {\n this.reporter.error('Encoding ' + tag + ' time is not supported yet');\n }\n\n return this._encodeStr(str, 'octstr');\n};\n\nDERNode.prototype._encodeNull = function encodeNull() {\n return this._createEncoderBuffer('');\n};\n\nDERNode.prototype._encodeInt = function encodeInt(num, values) {\n if (typeof num === 'string') {\n if (!values)\n return this.reporter.error('String int or enum given, but no values map');\n if (!values.hasOwnProperty(num)) {\n return this.reporter.error('Values map doesn\\'t contain: ' +\n JSON.stringify(num));\n }\n num = values[num];\n }\n\n // Bignum, assume big endian\n if (typeof num !== 'number' && !Buffer.isBuffer(num)) {\n const numArray = num.toArray();\n if (!num.sign && numArray[0] & 0x80) {\n numArray.unshift(0);\n }\n num = Buffer.from(numArray);\n }\n\n if (Buffer.isBuffer(num)) {\n let size = num.length;\n if (num.length === 0)\n size++;\n\n const out = Buffer.alloc(size);\n num.copy(out);\n if (num.length === 0)\n out[0] = 0;\n return this._createEncoderBuffer(out);\n }\n\n if (num < 0x80)\n return this._createEncoderBuffer(num);\n\n if (num < 0x100)\n return this._createEncoderBuffer([0, num]);\n\n let size = 1;\n for (let i = num; i >= 0x100; i >>= 8)\n size++;\n\n const out = new Array(size);\n for (let i = out.length - 1; i >= 0; i--) {\n out[i] = num & 0xff;\n num >>= 8;\n }\n if(out[0] & 0x80) {\n out.unshift(0);\n }\n\n return this._createEncoderBuffer(Buffer.from(out));\n};\n\nDERNode.prototype._encodeBool = function encodeBool(value) {\n return this._createEncoderBuffer(value ? 0xff : 0);\n};\n\nDERNode.prototype._use = function use(entity, obj) {\n if (typeof entity === 'function')\n entity = entity(obj);\n return entity._getEncoder('der').tree;\n};\n\nDERNode.prototype._skipDefault = function skipDefault(dataBuffer, reporter, parent) {\n const state = this._baseState;\n let i;\n if (state['default'] === null)\n return false;\n\n const data = dataBuffer.join();\n if (state.defaultBuffer === undefined)\n state.defaultBuffer = this._encodeValue(state['default'], reporter, parent).join();\n\n if (data.length !== state.defaultBuffer.length)\n return false;\n\n for (i=0; i < data.length; i++)\n if (data[i] !== state.defaultBuffer[i])\n return false;\n\n return true;\n};\n\n// Utility methods\n\nfunction encodeTag(tag, primitive, cls, reporter) {\n let res;\n\n if (tag === 'seqof')\n tag = 'seq';\n else if (tag === 'setof')\n tag = 'set';\n\n if (der.tagByName.hasOwnProperty(tag))\n res = der.tagByName[tag];\n else if (typeof tag === 'number' && (tag | 0) === tag)\n res = tag;\n else\n return reporter.error('Unknown tag: ' + tag);\n\n if (res >= 0x1f)\n return reporter.error('Multi-octet tag encoding unsupported');\n\n if (!primitive)\n res |= 0x20;\n\n res |= (der.tagClassByName[cls || 'universal'] << 6);\n\n return res;\n}\n","'use strict';\n\nconst encoders = exports;\n\nencoders.der = require('./der');\nencoders.pem = require('./pem');\n","'use strict';\n\nconst inherits = require('inherits');\n\nconst DEREncoder = require('./der');\n\nfunction PEMEncoder(entity) {\n DEREncoder.call(this, entity);\n this.enc = 'pem';\n}\ninherits(PEMEncoder, DEREncoder);\nmodule.exports = PEMEncoder;\n\nPEMEncoder.prototype.encode = function encode(data, options) {\n const buf = DEREncoder.prototype.encode.call(this, data);\n\n const p = buf.toString('base64');\n const out = [ '-----BEGIN ' + options.label + '-----' ];\n for (let i = 0; i < p.length; i += 64)\n out.push(p.slice(i, i + 64));\n out.push('-----END ' + options.label + '-----');\n return out.join('\\n');\n};\n","(function (module, exports) {\n 'use strict';\n\n // Utils\n function assert (val, msg) {\n if (!val) throw new Error(msg || 'Assertion failed');\n }\n\n // Could use `inherits` module, but don't want to move from single file\n // architecture yet.\n function inherits (ctor, superCtor) {\n ctor.super_ = superCtor;\n var TempCtor = function () {};\n TempCtor.prototype = superCtor.prototype;\n ctor.prototype = new TempCtor();\n ctor.prototype.constructor = ctor;\n }\n\n // BN\n\n function BN (number, base, endian) {\n if (BN.isBN(number)) {\n return number;\n }\n\n this.negative = 0;\n this.words = null;\n this.length = 0;\n\n // Reduction context\n this.red = null;\n\n if (number !== null) {\n if (base === 'le' || base === 'be') {\n endian = base;\n base = 10;\n }\n\n this._init(number || 0, base || 10, endian || 'be');\n }\n }\n if (typeof module === 'object') {\n module.exports = BN;\n } else {\n exports.BN = BN;\n }\n\n BN.BN = BN;\n BN.wordSize = 26;\n\n var Buffer;\n try {\n if (typeof window !== 'undefined' && typeof window.Buffer !== 'undefined') {\n Buffer = window.Buffer;\n } else {\n Buffer = require('buffer').Buffer;\n }\n } catch (e) {\n }\n\n BN.isBN = function isBN (num) {\n if (num instanceof BN) {\n return true;\n }\n\n return num !== null && typeof num === 'object' &&\n num.constructor.wordSize === BN.wordSize && Array.isArray(num.words);\n };\n\n BN.max = function max (left, right) {\n if (left.cmp(right) > 0) return left;\n return right;\n };\n\n BN.min = function min (left, right) {\n if (left.cmp(right) < 0) return left;\n return right;\n };\n\n BN.prototype._init = function init (number, base, endian) {\n if (typeof number === 'number') {\n return this._initNumber(number, base, endian);\n }\n\n if (typeof number === 'object') {\n return this._initArray(number, base, endian);\n }\n\n if (base === 'hex') {\n base = 16;\n }\n assert(base === (base | 0) && base >= 2 && base <= 36);\n\n number = number.toString().replace(/\\s+/g, '');\n var start = 0;\n if (number[0] === '-') {\n start++;\n this.negative = 1;\n }\n\n if (start < number.length) {\n if (base === 16) {\n this._parseHex(number, start, endian);\n } else {\n this._parseBase(number, base, start);\n if (endian === 'le') {\n this._initArray(this.toArray(), base, endian);\n }\n }\n }\n };\n\n BN.prototype._initNumber = function _initNumber (number, base, endian) {\n if (number < 0) {\n this.negative = 1;\n number = -number;\n }\n if (number < 0x4000000) {\n this.words = [ number & 0x3ffffff ];\n this.length = 1;\n } else if (number < 0x10000000000000) {\n this.words = [\n number & 0x3ffffff,\n (number / 0x4000000) & 0x3ffffff\n ];\n this.length = 2;\n } else {\n assert(number < 0x20000000000000); // 2 ^ 53 (unsafe)\n this.words = [\n number & 0x3ffffff,\n (number / 0x4000000) & 0x3ffffff,\n 1\n ];\n this.length = 3;\n }\n\n if (endian !== 'le') return;\n\n // Reverse the bytes\n this._initArray(this.toArray(), base, endian);\n };\n\n BN.prototype._initArray = function _initArray (number, base, endian) {\n // Perhaps a Uint8Array\n assert(typeof number.length === 'number');\n if (number.length <= 0) {\n this.words = [ 0 ];\n this.length = 1;\n return this;\n }\n\n this.length = Math.ceil(number.length / 3);\n this.words = new Array(this.length);\n for (var i = 0; i < this.length; i++) {\n this.words[i] = 0;\n }\n\n var j, w;\n var off = 0;\n if (endian === 'be') {\n for (i = number.length - 1, j = 0; i >= 0; i -= 3) {\n w = number[i] | (number[i - 1] << 8) | (number[i - 2] << 16);\n this.words[j] |= (w << off) & 0x3ffffff;\n this.words[j + 1] = (w >>> (26 - off)) & 0x3ffffff;\n off += 24;\n if (off >= 26) {\n off -= 26;\n j++;\n }\n }\n } else if (endian === 'le') {\n for (i = 0, j = 0; i < number.length; i += 3) {\n w = number[i] | (number[i + 1] << 8) | (number[i + 2] << 16);\n this.words[j] |= (w << off) & 0x3ffffff;\n this.words[j + 1] = (w >>> (26 - off)) & 0x3ffffff;\n off += 24;\n if (off >= 26) {\n off -= 26;\n j++;\n }\n }\n }\n return this.strip();\n };\n\n function parseHex4Bits (string, index) {\n var c = string.charCodeAt(index);\n // 'A' - 'F'\n if (c >= 65 && c <= 70) {\n return c - 55;\n // 'a' - 'f'\n } else if (c >= 97 && c <= 102) {\n return c - 87;\n // '0' - '9'\n } else {\n return (c - 48) & 0xf;\n }\n }\n\n function parseHexByte (string, lowerBound, index) {\n var r = parseHex4Bits(string, index);\n if (index - 1 >= lowerBound) {\n r |= parseHex4Bits(string, index - 1) << 4;\n }\n return r;\n }\n\n BN.prototype._parseHex = function _parseHex (number, start, endian) {\n // Create possibly bigger array to ensure that it fits the number\n this.length = Math.ceil((number.length - start) / 6);\n this.words = new Array(this.length);\n for (var i = 0; i < this.length; i++) {\n this.words[i] = 0;\n }\n\n // 24-bits chunks\n var off = 0;\n var j = 0;\n\n var w;\n if (endian === 'be') {\n for (i = number.length - 1; i >= start; i -= 2) {\n w = parseHexByte(number, start, i) << off;\n this.words[j] |= w & 0x3ffffff;\n if (off >= 18) {\n off -= 18;\n j += 1;\n this.words[j] |= w >>> 26;\n } else {\n off += 8;\n }\n }\n } else {\n var parseLength = number.length - start;\n for (i = parseLength % 2 === 0 ? start + 1 : start; i < number.length; i += 2) {\n w = parseHexByte(number, start, i) << off;\n this.words[j] |= w & 0x3ffffff;\n if (off >= 18) {\n off -= 18;\n j += 1;\n this.words[j] |= w >>> 26;\n } else {\n off += 8;\n }\n }\n }\n\n this.strip();\n };\n\n function parseBase (str, start, end, mul) {\n var r = 0;\n var len = Math.min(str.length, end);\n for (var i = start; i < len; i++) {\n var c = str.charCodeAt(i) - 48;\n\n r *= mul;\n\n // 'a'\n if (c >= 49) {\n r += c - 49 + 0xa;\n\n // 'A'\n } else if (c >= 17) {\n r += c - 17 + 0xa;\n\n // '0' - '9'\n } else {\n r += c;\n }\n }\n return r;\n }\n\n BN.prototype._parseBase = function _parseBase (number, base, start) {\n // Initialize as zero\n this.words = [ 0 ];\n this.length = 1;\n\n // Find length of limb in base\n for (var limbLen = 0, limbPow = 1; limbPow <= 0x3ffffff; limbPow *= base) {\n limbLen++;\n }\n limbLen--;\n limbPow = (limbPow / base) | 0;\n\n var total = number.length - start;\n var mod = total % limbLen;\n var end = Math.min(total, total - mod) + start;\n\n var word = 0;\n for (var i = start; i < end; i += limbLen) {\n word = parseBase(number, i, i + limbLen, base);\n\n this.imuln(limbPow);\n if (this.words[0] + word < 0x4000000) {\n this.words[0] += word;\n } else {\n this._iaddn(word);\n }\n }\n\n if (mod !== 0) {\n var pow = 1;\n word = parseBase(number, i, number.length, base);\n\n for (i = 0; i < mod; i++) {\n pow *= base;\n }\n\n this.imuln(pow);\n if (this.words[0] + word < 0x4000000) {\n this.words[0] += word;\n } else {\n this._iaddn(word);\n }\n }\n\n this.strip();\n };\n\n BN.prototype.copy = function copy (dest) {\n dest.words = new Array(this.length);\n for (var i = 0; i < this.length; i++) {\n dest.words[i] = this.words[i];\n }\n dest.length = this.length;\n dest.negative = this.negative;\n dest.red = this.red;\n };\n\n BN.prototype.clone = function clone () {\n var r = new BN(null);\n this.copy(r);\n return r;\n };\n\n BN.prototype._expand = function _expand (size) {\n while (this.length < size) {\n this.words[this.length++] = 0;\n }\n return this;\n };\n\n // Remove leading `0` from `this`\n BN.prototype.strip = function strip () {\n while (this.length > 1 && this.words[this.length - 1] === 0) {\n this.length--;\n }\n return this._normSign();\n };\n\n BN.prototype._normSign = function _normSign () {\n // -0 = 0\n if (this.length === 1 && this.words[0] === 0) {\n this.negative = 0;\n }\n return this;\n };\n\n BN.prototype.inspect = function inspect () {\n return (this.red ? '';\n };\n\n /*\n\n var zeros = [];\n var groupSizes = [];\n var groupBases = [];\n\n var s = '';\n var i = -1;\n while (++i < BN.wordSize) {\n zeros[i] = s;\n s += '0';\n }\n groupSizes[0] = 0;\n groupSizes[1] = 0;\n groupBases[0] = 0;\n groupBases[1] = 0;\n var base = 2 - 1;\n while (++base < 36 + 1) {\n var groupSize = 0;\n var groupBase = 1;\n while (groupBase < (1 << BN.wordSize) / base) {\n groupBase *= base;\n groupSize += 1;\n }\n groupSizes[base] = groupSize;\n groupBases[base] = groupBase;\n }\n\n */\n\n var zeros = [\n '',\n '0',\n '00',\n '000',\n '0000',\n '00000',\n '000000',\n '0000000',\n '00000000',\n '000000000',\n '0000000000',\n '00000000000',\n '000000000000',\n '0000000000000',\n '00000000000000',\n '000000000000000',\n '0000000000000000',\n '00000000000000000',\n '000000000000000000',\n '0000000000000000000',\n '00000000000000000000',\n '000000000000000000000',\n '0000000000000000000000',\n '00000000000000000000000',\n '000000000000000000000000',\n '0000000000000000000000000'\n ];\n\n var groupSizes = [\n 0, 0,\n 25, 16, 12, 11, 10, 9, 8,\n 8, 7, 7, 7, 7, 6, 6,\n 6, 6, 6, 6, 6, 5, 5,\n 5, 5, 5, 5, 5, 5, 5,\n 5, 5, 5, 5, 5, 5, 5\n ];\n\n var groupBases = [\n 0, 0,\n 33554432, 43046721, 16777216, 48828125, 60466176, 40353607, 16777216,\n 43046721, 10000000, 19487171, 35831808, 62748517, 7529536, 11390625,\n 16777216, 24137569, 34012224, 47045881, 64000000, 4084101, 5153632,\n 6436343, 7962624, 9765625, 11881376, 14348907, 17210368, 20511149,\n 24300000, 28629151, 33554432, 39135393, 45435424, 52521875, 60466176\n ];\n\n BN.prototype.toString = function toString (base, padding) {\n base = base || 10;\n padding = padding | 0 || 1;\n\n var out;\n if (base === 16 || base === 'hex') {\n out = '';\n var off = 0;\n var carry = 0;\n for (var i = 0; i < this.length; i++) {\n var w = this.words[i];\n var word = (((w << off) | carry) & 0xffffff).toString(16);\n carry = (w >>> (24 - off)) & 0xffffff;\n if (carry !== 0 || i !== this.length - 1) {\n out = zeros[6 - word.length] + word + out;\n } else {\n out = word + out;\n }\n off += 2;\n if (off >= 26) {\n off -= 26;\n i--;\n }\n }\n if (carry !== 0) {\n out = carry.toString(16) + out;\n }\n while (out.length % padding !== 0) {\n out = '0' + out;\n }\n if (this.negative !== 0) {\n out = '-' + out;\n }\n return out;\n }\n\n if (base === (base | 0) && base >= 2 && base <= 36) {\n // var groupSize = Math.floor(BN.wordSize * Math.LN2 / Math.log(base));\n var groupSize = groupSizes[base];\n // var groupBase = Math.pow(base, groupSize);\n var groupBase = groupBases[base];\n out = '';\n var c = this.clone();\n c.negative = 0;\n while (!c.isZero()) {\n var r = c.modn(groupBase).toString(base);\n c = c.idivn(groupBase);\n\n if (!c.isZero()) {\n out = zeros[groupSize - r.length] + r + out;\n } else {\n out = r + out;\n }\n }\n if (this.isZero()) {\n out = '0' + out;\n }\n while (out.length % padding !== 0) {\n out = '0' + out;\n }\n if (this.negative !== 0) {\n out = '-' + out;\n }\n return out;\n }\n\n assert(false, 'Base should be between 2 and 36');\n };\n\n BN.prototype.toNumber = function toNumber () {\n var ret = this.words[0];\n if (this.length === 2) {\n ret += this.words[1] * 0x4000000;\n } else if (this.length === 3 && this.words[2] === 0x01) {\n // NOTE: at this stage it is known that the top bit is set\n ret += 0x10000000000000 + (this.words[1] * 0x4000000);\n } else if (this.length > 2) {\n assert(false, 'Number can only safely store up to 53 bits');\n }\n return (this.negative !== 0) ? -ret : ret;\n };\n\n BN.prototype.toJSON = function toJSON () {\n return this.toString(16);\n };\n\n BN.prototype.toBuffer = function toBuffer (endian, length) {\n assert(typeof Buffer !== 'undefined');\n return this.toArrayLike(Buffer, endian, length);\n };\n\n BN.prototype.toArray = function toArray (endian, length) {\n return this.toArrayLike(Array, endian, length);\n };\n\n BN.prototype.toArrayLike = function toArrayLike (ArrayType, endian, length) {\n var byteLength = this.byteLength();\n var reqLength = length || Math.max(1, byteLength);\n assert(byteLength <= reqLength, 'byte array longer than desired length');\n assert(reqLength > 0, 'Requested array length <= 0');\n\n this.strip();\n var littleEndian = endian === 'le';\n var res = new ArrayType(reqLength);\n\n var b, i;\n var q = this.clone();\n if (!littleEndian) {\n // Assume big-endian\n for (i = 0; i < reqLength - byteLength; i++) {\n res[i] = 0;\n }\n\n for (i = 0; !q.isZero(); i++) {\n b = q.andln(0xff);\n q.iushrn(8);\n\n res[reqLength - i - 1] = b;\n }\n } else {\n for (i = 0; !q.isZero(); i++) {\n b = q.andln(0xff);\n q.iushrn(8);\n\n res[i] = b;\n }\n\n for (; i < reqLength; i++) {\n res[i] = 0;\n }\n }\n\n return res;\n };\n\n if (Math.clz32) {\n BN.prototype._countBits = function _countBits (w) {\n return 32 - Math.clz32(w);\n };\n } else {\n BN.prototype._countBits = function _countBits (w) {\n var t = w;\n var r = 0;\n if (t >= 0x1000) {\n r += 13;\n t >>>= 13;\n }\n if (t >= 0x40) {\n r += 7;\n t >>>= 7;\n }\n if (t >= 0x8) {\n r += 4;\n t >>>= 4;\n }\n if (t >= 0x02) {\n r += 2;\n t >>>= 2;\n }\n return r + t;\n };\n }\n\n BN.prototype._zeroBits = function _zeroBits (w) {\n // Short-cut\n if (w === 0) return 26;\n\n var t = w;\n var r = 0;\n if ((t & 0x1fff) === 0) {\n r += 13;\n t >>>= 13;\n }\n if ((t & 0x7f) === 0) {\n r += 7;\n t >>>= 7;\n }\n if ((t & 0xf) === 0) {\n r += 4;\n t >>>= 4;\n }\n if ((t & 0x3) === 0) {\n r += 2;\n t >>>= 2;\n }\n if ((t & 0x1) === 0) {\n r++;\n }\n return r;\n };\n\n // Return number of used bits in a BN\n BN.prototype.bitLength = function bitLength () {\n var w = this.words[this.length - 1];\n var hi = this._countBits(w);\n return (this.length - 1) * 26 + hi;\n };\n\n function toBitArray (num) {\n var w = new Array(num.bitLength());\n\n for (var bit = 0; bit < w.length; bit++) {\n var off = (bit / 26) | 0;\n var wbit = bit % 26;\n\n w[bit] = (num.words[off] & (1 << wbit)) >>> wbit;\n }\n\n return w;\n }\n\n // Number of trailing zero bits\n BN.prototype.zeroBits = function zeroBits () {\n if (this.isZero()) return 0;\n\n var r = 0;\n for (var i = 0; i < this.length; i++) {\n var b = this._zeroBits(this.words[i]);\n r += b;\n if (b !== 26) break;\n }\n return r;\n };\n\n BN.prototype.byteLength = function byteLength () {\n return Math.ceil(this.bitLength() / 8);\n };\n\n BN.prototype.toTwos = function toTwos (width) {\n if (this.negative !== 0) {\n return this.abs().inotn(width).iaddn(1);\n }\n return this.clone();\n };\n\n BN.prototype.fromTwos = function fromTwos (width) {\n if (this.testn(width - 1)) {\n return this.notn(width).iaddn(1).ineg();\n }\n return this.clone();\n };\n\n BN.prototype.isNeg = function isNeg () {\n return this.negative !== 0;\n };\n\n // Return negative clone of `this`\n BN.prototype.neg = function neg () {\n return this.clone().ineg();\n };\n\n BN.prototype.ineg = function ineg () {\n if (!this.isZero()) {\n this.negative ^= 1;\n }\n\n return this;\n };\n\n // Or `num` with `this` in-place\n BN.prototype.iuor = function iuor (num) {\n while (this.length < num.length) {\n this.words[this.length++] = 0;\n }\n\n for (var i = 0; i < num.length; i++) {\n this.words[i] = this.words[i] | num.words[i];\n }\n\n return this.strip();\n };\n\n BN.prototype.ior = function ior (num) {\n assert((this.negative | num.negative) === 0);\n return this.iuor(num);\n };\n\n // Or `num` with `this`\n BN.prototype.or = function or (num) {\n if (this.length > num.length) return this.clone().ior(num);\n return num.clone().ior(this);\n };\n\n BN.prototype.uor = function uor (num) {\n if (this.length > num.length) return this.clone().iuor(num);\n return num.clone().iuor(this);\n };\n\n // And `num` with `this` in-place\n BN.prototype.iuand = function iuand (num) {\n // b = min-length(num, this)\n var b;\n if (this.length > num.length) {\n b = num;\n } else {\n b = this;\n }\n\n for (var i = 0; i < b.length; i++) {\n this.words[i] = this.words[i] & num.words[i];\n }\n\n this.length = b.length;\n\n return this.strip();\n };\n\n BN.prototype.iand = function iand (num) {\n assert((this.negative | num.negative) === 0);\n return this.iuand(num);\n };\n\n // And `num` with `this`\n BN.prototype.and = function and (num) {\n if (this.length > num.length) return this.clone().iand(num);\n return num.clone().iand(this);\n };\n\n BN.prototype.uand = function uand (num) {\n if (this.length > num.length) return this.clone().iuand(num);\n return num.clone().iuand(this);\n };\n\n // Xor `num` with `this` in-place\n BN.prototype.iuxor = function iuxor (num) {\n // a.length > b.length\n var a;\n var b;\n if (this.length > num.length) {\n a = this;\n b = num;\n } else {\n a = num;\n b = this;\n }\n\n for (var i = 0; i < b.length; i++) {\n this.words[i] = a.words[i] ^ b.words[i];\n }\n\n if (this !== a) {\n for (; i < a.length; i++) {\n this.words[i] = a.words[i];\n }\n }\n\n this.length = a.length;\n\n return this.strip();\n };\n\n BN.prototype.ixor = function ixor (num) {\n assert((this.negative | num.negative) === 0);\n return this.iuxor(num);\n };\n\n // Xor `num` with `this`\n BN.prototype.xor = function xor (num) {\n if (this.length > num.length) return this.clone().ixor(num);\n return num.clone().ixor(this);\n };\n\n BN.prototype.uxor = function uxor (num) {\n if (this.length > num.length) return this.clone().iuxor(num);\n return num.clone().iuxor(this);\n };\n\n // Not ``this`` with ``width`` bitwidth\n BN.prototype.inotn = function inotn (width) {\n assert(typeof width === 'number' && width >= 0);\n\n var bytesNeeded = Math.ceil(width / 26) | 0;\n var bitsLeft = width % 26;\n\n // Extend the buffer with leading zeroes\n this._expand(bytesNeeded);\n\n if (bitsLeft > 0) {\n bytesNeeded--;\n }\n\n // Handle complete words\n for (var i = 0; i < bytesNeeded; i++) {\n this.words[i] = ~this.words[i] & 0x3ffffff;\n }\n\n // Handle the residue\n if (bitsLeft > 0) {\n this.words[i] = ~this.words[i] & (0x3ffffff >> (26 - bitsLeft));\n }\n\n // And remove leading zeroes\n return this.strip();\n };\n\n BN.prototype.notn = function notn (width) {\n return this.clone().inotn(width);\n };\n\n // Set `bit` of `this`\n BN.prototype.setn = function setn (bit, val) {\n assert(typeof bit === 'number' && bit >= 0);\n\n var off = (bit / 26) | 0;\n var wbit = bit % 26;\n\n this._expand(off + 1);\n\n if (val) {\n this.words[off] = this.words[off] | (1 << wbit);\n } else {\n this.words[off] = this.words[off] & ~(1 << wbit);\n }\n\n return this.strip();\n };\n\n // Add `num` to `this` in-place\n BN.prototype.iadd = function iadd (num) {\n var r;\n\n // negative + positive\n if (this.negative !== 0 && num.negative === 0) {\n this.negative = 0;\n r = this.isub(num);\n this.negative ^= 1;\n return this._normSign();\n\n // positive + negative\n } else if (this.negative === 0 && num.negative !== 0) {\n num.negative = 0;\n r = this.isub(num);\n num.negative = 1;\n return r._normSign();\n }\n\n // a.length > b.length\n var a, b;\n if (this.length > num.length) {\n a = this;\n b = num;\n } else {\n a = num;\n b = this;\n }\n\n var carry = 0;\n for (var i = 0; i < b.length; i++) {\n r = (a.words[i] | 0) + (b.words[i] | 0) + carry;\n this.words[i] = r & 0x3ffffff;\n carry = r >>> 26;\n }\n for (; carry !== 0 && i < a.length; i++) {\n r = (a.words[i] | 0) + carry;\n this.words[i] = r & 0x3ffffff;\n carry = r >>> 26;\n }\n\n this.length = a.length;\n if (carry !== 0) {\n this.words[this.length] = carry;\n this.length++;\n // Copy the rest of the words\n } else if (a !== this) {\n for (; i < a.length; i++) {\n this.words[i] = a.words[i];\n }\n }\n\n return this;\n };\n\n // Add `num` to `this`\n BN.prototype.add = function add (num) {\n var res;\n if (num.negative !== 0 && this.negative === 0) {\n num.negative = 0;\n res = this.sub(num);\n num.negative ^= 1;\n return res;\n } else if (num.negative === 0 && this.negative !== 0) {\n this.negative = 0;\n res = num.sub(this);\n this.negative = 1;\n return res;\n }\n\n if (this.length > num.length) return this.clone().iadd(num);\n\n return num.clone().iadd(this);\n };\n\n // Subtract `num` from `this` in-place\n BN.prototype.isub = function isub (num) {\n // this - (-num) = this + num\n if (num.negative !== 0) {\n num.negative = 0;\n var r = this.iadd(num);\n num.negative = 1;\n return r._normSign();\n\n // -this - num = -(this + num)\n } else if (this.negative !== 0) {\n this.negative = 0;\n this.iadd(num);\n this.negative = 1;\n return this._normSign();\n }\n\n // At this point both numbers are positive\n var cmp = this.cmp(num);\n\n // Optimization - zeroify\n if (cmp === 0) {\n this.negative = 0;\n this.length = 1;\n this.words[0] = 0;\n return this;\n }\n\n // a > b\n var a, b;\n if (cmp > 0) {\n a = this;\n b = num;\n } else {\n a = num;\n b = this;\n }\n\n var carry = 0;\n for (var i = 0; i < b.length; i++) {\n r = (a.words[i] | 0) - (b.words[i] | 0) + carry;\n carry = r >> 26;\n this.words[i] = r & 0x3ffffff;\n }\n for (; carry !== 0 && i < a.length; i++) {\n r = (a.words[i] | 0) + carry;\n carry = r >> 26;\n this.words[i] = r & 0x3ffffff;\n }\n\n // Copy rest of the words\n if (carry === 0 && i < a.length && a !== this) {\n for (; i < a.length; i++) {\n this.words[i] = a.words[i];\n }\n }\n\n this.length = Math.max(this.length, i);\n\n if (a !== this) {\n this.negative = 1;\n }\n\n return this.strip();\n };\n\n // Subtract `num` from `this`\n BN.prototype.sub = function sub (num) {\n return this.clone().isub(num);\n };\n\n function smallMulTo (self, num, out) {\n out.negative = num.negative ^ self.negative;\n var len = (self.length + num.length) | 0;\n out.length = len;\n len = (len - 1) | 0;\n\n // Peel one iteration (compiler can't do it, because of code complexity)\n var a = self.words[0] | 0;\n var b = num.words[0] | 0;\n var r = a * b;\n\n var lo = r & 0x3ffffff;\n var carry = (r / 0x4000000) | 0;\n out.words[0] = lo;\n\n for (var k = 1; k < len; k++) {\n // Sum all words with the same `i + j = k` and accumulate `ncarry`,\n // note that ncarry could be >= 0x3ffffff\n var ncarry = carry >>> 26;\n var rword = carry & 0x3ffffff;\n var maxJ = Math.min(k, num.length - 1);\n for (var j = Math.max(0, k - self.length + 1); j <= maxJ; j++) {\n var i = (k - j) | 0;\n a = self.words[i] | 0;\n b = num.words[j] | 0;\n r = a * b + rword;\n ncarry += (r / 0x4000000) | 0;\n rword = r & 0x3ffffff;\n }\n out.words[k] = rword | 0;\n carry = ncarry | 0;\n }\n if (carry !== 0) {\n out.words[k] = carry | 0;\n } else {\n out.length--;\n }\n\n return out.strip();\n }\n\n // TODO(indutny): it may be reasonable to omit it for users who don't need\n // to work with 256-bit numbers, otherwise it gives 20% improvement for 256-bit\n // multiplication (like elliptic secp256k1).\n var comb10MulTo = function comb10MulTo (self, num, out) {\n var a = self.words;\n var b = num.words;\n var o = out.words;\n var c = 0;\n var lo;\n var mid;\n var hi;\n var a0 = a[0] | 0;\n var al0 = a0 & 0x1fff;\n var ah0 = a0 >>> 13;\n var a1 = a[1] | 0;\n var al1 = a1 & 0x1fff;\n var ah1 = a1 >>> 13;\n var a2 = a[2] | 0;\n var al2 = a2 & 0x1fff;\n var ah2 = a2 >>> 13;\n var a3 = a[3] | 0;\n var al3 = a3 & 0x1fff;\n var ah3 = a3 >>> 13;\n var a4 = a[4] | 0;\n var al4 = a4 & 0x1fff;\n var ah4 = a4 >>> 13;\n var a5 = a[5] | 0;\n var al5 = a5 & 0x1fff;\n var ah5 = a5 >>> 13;\n var a6 = a[6] | 0;\n var al6 = a6 & 0x1fff;\n var ah6 = a6 >>> 13;\n var a7 = a[7] | 0;\n var al7 = a7 & 0x1fff;\n var ah7 = a7 >>> 13;\n var a8 = a[8] | 0;\n var al8 = a8 & 0x1fff;\n var ah8 = a8 >>> 13;\n var a9 = a[9] | 0;\n var al9 = a9 & 0x1fff;\n var ah9 = a9 >>> 13;\n var b0 = b[0] | 0;\n var bl0 = b0 & 0x1fff;\n var bh0 = b0 >>> 13;\n var b1 = b[1] | 0;\n var bl1 = b1 & 0x1fff;\n var bh1 = b1 >>> 13;\n var b2 = b[2] | 0;\n var bl2 = b2 & 0x1fff;\n var bh2 = b2 >>> 13;\n var b3 = b[3] | 0;\n var bl3 = b3 & 0x1fff;\n var bh3 = b3 >>> 13;\n var b4 = b[4] | 0;\n var bl4 = b4 & 0x1fff;\n var bh4 = b4 >>> 13;\n var b5 = b[5] | 0;\n var bl5 = b5 & 0x1fff;\n var bh5 = b5 >>> 13;\n var b6 = b[6] | 0;\n var bl6 = b6 & 0x1fff;\n var bh6 = b6 >>> 13;\n var b7 = b[7] | 0;\n var bl7 = b7 & 0x1fff;\n var bh7 = b7 >>> 13;\n var b8 = b[8] | 0;\n var bl8 = b8 & 0x1fff;\n var bh8 = b8 >>> 13;\n var b9 = b[9] | 0;\n var bl9 = b9 & 0x1fff;\n var bh9 = b9 >>> 13;\n\n out.negative = self.negative ^ num.negative;\n out.length = 19;\n /* k = 0 */\n lo = Math.imul(al0, bl0);\n mid = Math.imul(al0, bh0);\n mid = (mid + Math.imul(ah0, bl0)) | 0;\n hi = Math.imul(ah0, bh0);\n var w0 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w0 >>> 26)) | 0;\n w0 &= 0x3ffffff;\n /* k = 1 */\n lo = Math.imul(al1, bl0);\n mid = Math.imul(al1, bh0);\n mid = (mid + Math.imul(ah1, bl0)) | 0;\n hi = Math.imul(ah1, bh0);\n lo = (lo + Math.imul(al0, bl1)) | 0;\n mid = (mid + Math.imul(al0, bh1)) | 0;\n mid = (mid + Math.imul(ah0, bl1)) | 0;\n hi = (hi + Math.imul(ah0, bh1)) | 0;\n var w1 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w1 >>> 26)) | 0;\n w1 &= 0x3ffffff;\n /* k = 2 */\n lo = Math.imul(al2, bl0);\n mid = Math.imul(al2, bh0);\n mid = (mid + Math.imul(ah2, bl0)) | 0;\n hi = Math.imul(ah2, bh0);\n lo = (lo + Math.imul(al1, bl1)) | 0;\n mid = (mid + Math.imul(al1, bh1)) | 0;\n mid = (mid + Math.imul(ah1, bl1)) | 0;\n hi = (hi + Math.imul(ah1, bh1)) | 0;\n lo = (lo + Math.imul(al0, bl2)) | 0;\n mid = (mid + Math.imul(al0, bh2)) | 0;\n mid = (mid + Math.imul(ah0, bl2)) | 0;\n hi = (hi + Math.imul(ah0, bh2)) | 0;\n var w2 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w2 >>> 26)) | 0;\n w2 &= 0x3ffffff;\n /* k = 3 */\n lo = Math.imul(al3, bl0);\n mid = Math.imul(al3, bh0);\n mid = (mid + Math.imul(ah3, bl0)) | 0;\n hi = Math.imul(ah3, bh0);\n lo = (lo + Math.imul(al2, bl1)) | 0;\n mid = (mid + Math.imul(al2, bh1)) | 0;\n mid = (mid + Math.imul(ah2, bl1)) | 0;\n hi = (hi + Math.imul(ah2, bh1)) | 0;\n lo = (lo + Math.imul(al1, bl2)) | 0;\n mid = (mid + Math.imul(al1, bh2)) | 0;\n mid = (mid + Math.imul(ah1, bl2)) | 0;\n hi = (hi + Math.imul(ah1, bh2)) | 0;\n lo = (lo + Math.imul(al0, bl3)) | 0;\n mid = (mid + Math.imul(al0, bh3)) | 0;\n mid = (mid + Math.imul(ah0, bl3)) | 0;\n hi = (hi + Math.imul(ah0, bh3)) | 0;\n var w3 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w3 >>> 26)) | 0;\n w3 &= 0x3ffffff;\n /* k = 4 */\n lo = Math.imul(al4, bl0);\n mid = Math.imul(al4, bh0);\n mid = (mid + Math.imul(ah4, bl0)) | 0;\n hi = Math.imul(ah4, bh0);\n lo = (lo + Math.imul(al3, bl1)) | 0;\n mid = (mid + Math.imul(al3, bh1)) | 0;\n mid = (mid + Math.imul(ah3, bl1)) | 0;\n hi = (hi + Math.imul(ah3, bh1)) | 0;\n lo = (lo + Math.imul(al2, bl2)) | 0;\n mid = (mid + Math.imul(al2, bh2)) | 0;\n mid = (mid + Math.imul(ah2, bl2)) | 0;\n hi = (hi + Math.imul(ah2, bh2)) | 0;\n lo = (lo + Math.imul(al1, bl3)) | 0;\n mid = (mid + Math.imul(al1, bh3)) | 0;\n mid = (mid + Math.imul(ah1, bl3)) | 0;\n hi = (hi + Math.imul(ah1, bh3)) | 0;\n lo = (lo + Math.imul(al0, bl4)) | 0;\n mid = (mid + Math.imul(al0, bh4)) | 0;\n mid = (mid + Math.imul(ah0, bl4)) | 0;\n hi = (hi + Math.imul(ah0, bh4)) | 0;\n var w4 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w4 >>> 26)) | 0;\n w4 &= 0x3ffffff;\n /* k = 5 */\n lo = Math.imul(al5, bl0);\n mid = Math.imul(al5, bh0);\n mid = (mid + Math.imul(ah5, bl0)) | 0;\n hi = Math.imul(ah5, bh0);\n lo = (lo + Math.imul(al4, bl1)) | 0;\n mid = (mid + Math.imul(al4, bh1)) | 0;\n mid = (mid + Math.imul(ah4, bl1)) | 0;\n hi = (hi + Math.imul(ah4, bh1)) | 0;\n lo = (lo + Math.imul(al3, bl2)) | 0;\n mid = (mid + Math.imul(al3, bh2)) | 0;\n mid = (mid + Math.imul(ah3, bl2)) | 0;\n hi = (hi + Math.imul(ah3, bh2)) | 0;\n lo = (lo + Math.imul(al2, bl3)) | 0;\n mid = (mid + Math.imul(al2, bh3)) | 0;\n mid = (mid + Math.imul(ah2, bl3)) | 0;\n hi = (hi + Math.imul(ah2, bh3)) | 0;\n lo = (lo + Math.imul(al1, bl4)) | 0;\n mid = (mid + Math.imul(al1, bh4)) | 0;\n mid = (mid + Math.imul(ah1, bl4)) | 0;\n hi = (hi + Math.imul(ah1, bh4)) | 0;\n lo = (lo + Math.imul(al0, bl5)) | 0;\n mid = (mid + Math.imul(al0, bh5)) | 0;\n mid = (mid + Math.imul(ah0, bl5)) | 0;\n hi = (hi + Math.imul(ah0, bh5)) | 0;\n var w5 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w5 >>> 26)) | 0;\n w5 &= 0x3ffffff;\n /* k = 6 */\n lo = Math.imul(al6, bl0);\n mid = Math.imul(al6, bh0);\n mid = (mid + Math.imul(ah6, bl0)) | 0;\n hi = Math.imul(ah6, bh0);\n lo = (lo + Math.imul(al5, bl1)) | 0;\n mid = (mid + Math.imul(al5, bh1)) | 0;\n mid = (mid + Math.imul(ah5, bl1)) | 0;\n hi = (hi + Math.imul(ah5, bh1)) | 0;\n lo = (lo + Math.imul(al4, bl2)) | 0;\n mid = (mid + Math.imul(al4, bh2)) | 0;\n mid = (mid + Math.imul(ah4, bl2)) | 0;\n hi = (hi + Math.imul(ah4, bh2)) | 0;\n lo = (lo + Math.imul(al3, bl3)) | 0;\n mid = (mid + Math.imul(al3, bh3)) | 0;\n mid = (mid + Math.imul(ah3, bl3)) | 0;\n hi = (hi + Math.imul(ah3, bh3)) | 0;\n lo = (lo + Math.imul(al2, bl4)) | 0;\n mid = (mid + Math.imul(al2, bh4)) | 0;\n mid = (mid + Math.imul(ah2, bl4)) | 0;\n hi = (hi + Math.imul(ah2, bh4)) | 0;\n lo = (lo + Math.imul(al1, bl5)) | 0;\n mid = (mid + Math.imul(al1, bh5)) | 0;\n mid = (mid + Math.imul(ah1, bl5)) | 0;\n hi = (hi + Math.imul(ah1, bh5)) | 0;\n lo = (lo + Math.imul(al0, bl6)) | 0;\n mid = (mid + Math.imul(al0, bh6)) | 0;\n mid = (mid + Math.imul(ah0, bl6)) | 0;\n hi = (hi + Math.imul(ah0, bh6)) | 0;\n var w6 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w6 >>> 26)) | 0;\n w6 &= 0x3ffffff;\n /* k = 7 */\n lo = Math.imul(al7, bl0);\n mid = Math.imul(al7, bh0);\n mid = (mid + Math.imul(ah7, bl0)) | 0;\n hi = Math.imul(ah7, bh0);\n lo = (lo + Math.imul(al6, bl1)) | 0;\n mid = (mid + Math.imul(al6, bh1)) | 0;\n mid = (mid + Math.imul(ah6, bl1)) | 0;\n hi = (hi + Math.imul(ah6, bh1)) | 0;\n lo = (lo + Math.imul(al5, bl2)) | 0;\n mid = (mid + Math.imul(al5, bh2)) | 0;\n mid = (mid + Math.imul(ah5, bl2)) | 0;\n hi = (hi + Math.imul(ah5, bh2)) | 0;\n lo = (lo + Math.imul(al4, bl3)) | 0;\n mid = (mid + Math.imul(al4, bh3)) | 0;\n mid = (mid + Math.imul(ah4, bl3)) | 0;\n hi = (hi + Math.imul(ah4, bh3)) | 0;\n lo = (lo + Math.imul(al3, bl4)) | 0;\n mid = (mid + Math.imul(al3, bh4)) | 0;\n mid = (mid + Math.imul(ah3, bl4)) | 0;\n hi = (hi + Math.imul(ah3, bh4)) | 0;\n lo = (lo + Math.imul(al2, bl5)) | 0;\n mid = (mid + Math.imul(al2, bh5)) | 0;\n mid = (mid + Math.imul(ah2, bl5)) | 0;\n hi = (hi + Math.imul(ah2, bh5)) | 0;\n lo = (lo + Math.imul(al1, bl6)) | 0;\n mid = (mid + Math.imul(al1, bh6)) | 0;\n mid = (mid + Math.imul(ah1, bl6)) | 0;\n hi = (hi + Math.imul(ah1, bh6)) | 0;\n lo = (lo + Math.imul(al0, bl7)) | 0;\n mid = (mid + Math.imul(al0, bh7)) | 0;\n mid = (mid + Math.imul(ah0, bl7)) | 0;\n hi = (hi + Math.imul(ah0, bh7)) | 0;\n var w7 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w7 >>> 26)) | 0;\n w7 &= 0x3ffffff;\n /* k = 8 */\n lo = Math.imul(al8, bl0);\n mid = Math.imul(al8, bh0);\n mid = (mid + Math.imul(ah8, bl0)) | 0;\n hi = Math.imul(ah8, bh0);\n lo = (lo + Math.imul(al7, bl1)) | 0;\n mid = (mid + Math.imul(al7, bh1)) | 0;\n mid = (mid + Math.imul(ah7, bl1)) | 0;\n hi = (hi + Math.imul(ah7, bh1)) | 0;\n lo = (lo + Math.imul(al6, bl2)) | 0;\n mid = (mid + Math.imul(al6, bh2)) | 0;\n mid = (mid + Math.imul(ah6, bl2)) | 0;\n hi = (hi + Math.imul(ah6, bh2)) | 0;\n lo = (lo + Math.imul(al5, bl3)) | 0;\n mid = (mid + Math.imul(al5, bh3)) | 0;\n mid = (mid + Math.imul(ah5, bl3)) | 0;\n hi = (hi + Math.imul(ah5, bh3)) | 0;\n lo = (lo + Math.imul(al4, bl4)) | 0;\n mid = (mid + Math.imul(al4, bh4)) | 0;\n mid = (mid + Math.imul(ah4, bl4)) | 0;\n hi = (hi + Math.imul(ah4, bh4)) | 0;\n lo = (lo + Math.imul(al3, bl5)) | 0;\n mid = (mid + Math.imul(al3, bh5)) | 0;\n mid = (mid + Math.imul(ah3, bl5)) | 0;\n hi = (hi + Math.imul(ah3, bh5)) | 0;\n lo = (lo + Math.imul(al2, bl6)) | 0;\n mid = (mid + Math.imul(al2, bh6)) | 0;\n mid = (mid + Math.imul(ah2, bl6)) | 0;\n hi = (hi + Math.imul(ah2, bh6)) | 0;\n lo = (lo + Math.imul(al1, bl7)) | 0;\n mid = (mid + Math.imul(al1, bh7)) | 0;\n mid = (mid + Math.imul(ah1, bl7)) | 0;\n hi = (hi + Math.imul(ah1, bh7)) | 0;\n lo = (lo + Math.imul(al0, bl8)) | 0;\n mid = (mid + Math.imul(al0, bh8)) | 0;\n mid = (mid + Math.imul(ah0, bl8)) | 0;\n hi = (hi + Math.imul(ah0, bh8)) | 0;\n var w8 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w8 >>> 26)) | 0;\n w8 &= 0x3ffffff;\n /* k = 9 */\n lo = Math.imul(al9, bl0);\n mid = Math.imul(al9, bh0);\n mid = (mid + Math.imul(ah9, bl0)) | 0;\n hi = Math.imul(ah9, bh0);\n lo = (lo + Math.imul(al8, bl1)) | 0;\n mid = (mid + Math.imul(al8, bh1)) | 0;\n mid = (mid + Math.imul(ah8, bl1)) | 0;\n hi = (hi + Math.imul(ah8, bh1)) | 0;\n lo = (lo + Math.imul(al7, bl2)) | 0;\n mid = (mid + Math.imul(al7, bh2)) | 0;\n mid = (mid + Math.imul(ah7, bl2)) | 0;\n hi = (hi + Math.imul(ah7, bh2)) | 0;\n lo = (lo + Math.imul(al6, bl3)) | 0;\n mid = (mid + Math.imul(al6, bh3)) | 0;\n mid = (mid + Math.imul(ah6, bl3)) | 0;\n hi = (hi + Math.imul(ah6, bh3)) | 0;\n lo = (lo + Math.imul(al5, bl4)) | 0;\n mid = (mid + Math.imul(al5, bh4)) | 0;\n mid = (mid + Math.imul(ah5, bl4)) | 0;\n hi = (hi + Math.imul(ah5, bh4)) | 0;\n lo = (lo + Math.imul(al4, bl5)) | 0;\n mid = (mid + Math.imul(al4, bh5)) | 0;\n mid = (mid + Math.imul(ah4, bl5)) | 0;\n hi = (hi + Math.imul(ah4, bh5)) | 0;\n lo = (lo + Math.imul(al3, bl6)) | 0;\n mid = (mid + Math.imul(al3, bh6)) | 0;\n mid = (mid + Math.imul(ah3, bl6)) | 0;\n hi = (hi + Math.imul(ah3, bh6)) | 0;\n lo = (lo + Math.imul(al2, bl7)) | 0;\n mid = (mid + Math.imul(al2, bh7)) | 0;\n mid = (mid + Math.imul(ah2, bl7)) | 0;\n hi = (hi + Math.imul(ah2, bh7)) | 0;\n lo = (lo + Math.imul(al1, bl8)) | 0;\n mid = (mid + Math.imul(al1, bh8)) | 0;\n mid = (mid + Math.imul(ah1, bl8)) | 0;\n hi = (hi + Math.imul(ah1, bh8)) | 0;\n lo = (lo + Math.imul(al0, bl9)) | 0;\n mid = (mid + Math.imul(al0, bh9)) | 0;\n mid = (mid + Math.imul(ah0, bl9)) | 0;\n hi = (hi + Math.imul(ah0, bh9)) | 0;\n var w9 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w9 >>> 26)) | 0;\n w9 &= 0x3ffffff;\n /* k = 10 */\n lo = Math.imul(al9, bl1);\n mid = Math.imul(al9, bh1);\n mid = (mid + Math.imul(ah9, bl1)) | 0;\n hi = Math.imul(ah9, bh1);\n lo = (lo + Math.imul(al8, bl2)) | 0;\n mid = (mid + Math.imul(al8, bh2)) | 0;\n mid = (mid + Math.imul(ah8, bl2)) | 0;\n hi = (hi + Math.imul(ah8, bh2)) | 0;\n lo = (lo + Math.imul(al7, bl3)) | 0;\n mid = (mid + Math.imul(al7, bh3)) | 0;\n mid = (mid + Math.imul(ah7, bl3)) | 0;\n hi = (hi + Math.imul(ah7, bh3)) | 0;\n lo = (lo + Math.imul(al6, bl4)) | 0;\n mid = (mid + Math.imul(al6, bh4)) | 0;\n mid = (mid + Math.imul(ah6, bl4)) | 0;\n hi = (hi + Math.imul(ah6, bh4)) | 0;\n lo = (lo + Math.imul(al5, bl5)) | 0;\n mid = (mid + Math.imul(al5, bh5)) | 0;\n mid = (mid + Math.imul(ah5, bl5)) | 0;\n hi = (hi + Math.imul(ah5, bh5)) | 0;\n lo = (lo + Math.imul(al4, bl6)) | 0;\n mid = (mid + Math.imul(al4, bh6)) | 0;\n mid = (mid + Math.imul(ah4, bl6)) | 0;\n hi = (hi + Math.imul(ah4, bh6)) | 0;\n lo = (lo + Math.imul(al3, bl7)) | 0;\n mid = (mid + Math.imul(al3, bh7)) | 0;\n mid = (mid + Math.imul(ah3, bl7)) | 0;\n hi = (hi + Math.imul(ah3, bh7)) | 0;\n lo = (lo + Math.imul(al2, bl8)) | 0;\n mid = (mid + Math.imul(al2, bh8)) | 0;\n mid = (mid + Math.imul(ah2, bl8)) | 0;\n hi = (hi + Math.imul(ah2, bh8)) | 0;\n lo = (lo + Math.imul(al1, bl9)) | 0;\n mid = (mid + Math.imul(al1, bh9)) | 0;\n mid = (mid + Math.imul(ah1, bl9)) | 0;\n hi = (hi + Math.imul(ah1, bh9)) | 0;\n var w10 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w10 >>> 26)) | 0;\n w10 &= 0x3ffffff;\n /* k = 11 */\n lo = Math.imul(al9, bl2);\n mid = Math.imul(al9, bh2);\n mid = (mid + Math.imul(ah9, bl2)) | 0;\n hi = Math.imul(ah9, bh2);\n lo = (lo + Math.imul(al8, bl3)) | 0;\n mid = (mid + Math.imul(al8, bh3)) | 0;\n mid = (mid + Math.imul(ah8, bl3)) | 0;\n hi = (hi + Math.imul(ah8, bh3)) | 0;\n lo = (lo + Math.imul(al7, bl4)) | 0;\n mid = (mid + Math.imul(al7, bh4)) | 0;\n mid = (mid + Math.imul(ah7, bl4)) | 0;\n hi = (hi + Math.imul(ah7, bh4)) | 0;\n lo = (lo + Math.imul(al6, bl5)) | 0;\n mid = (mid + Math.imul(al6, bh5)) | 0;\n mid = (mid + Math.imul(ah6, bl5)) | 0;\n hi = (hi + Math.imul(ah6, bh5)) | 0;\n lo = (lo + Math.imul(al5, bl6)) | 0;\n mid = (mid + Math.imul(al5, bh6)) | 0;\n mid = (mid + Math.imul(ah5, bl6)) | 0;\n hi = (hi + Math.imul(ah5, bh6)) | 0;\n lo = (lo + Math.imul(al4, bl7)) | 0;\n mid = (mid + Math.imul(al4, bh7)) | 0;\n mid = (mid + Math.imul(ah4, bl7)) | 0;\n hi = (hi + Math.imul(ah4, bh7)) | 0;\n lo = (lo + Math.imul(al3, bl8)) | 0;\n mid = (mid + Math.imul(al3, bh8)) | 0;\n mid = (mid + Math.imul(ah3, bl8)) | 0;\n hi = (hi + Math.imul(ah3, bh8)) | 0;\n lo = (lo + Math.imul(al2, bl9)) | 0;\n mid = (mid + Math.imul(al2, bh9)) | 0;\n mid = (mid + Math.imul(ah2, bl9)) | 0;\n hi = (hi + Math.imul(ah2, bh9)) | 0;\n var w11 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w11 >>> 26)) | 0;\n w11 &= 0x3ffffff;\n /* k = 12 */\n lo = Math.imul(al9, bl3);\n mid = Math.imul(al9, bh3);\n mid = (mid + Math.imul(ah9, bl3)) | 0;\n hi = Math.imul(ah9, bh3);\n lo = (lo + Math.imul(al8, bl4)) | 0;\n mid = (mid + Math.imul(al8, bh4)) | 0;\n mid = (mid + Math.imul(ah8, bl4)) | 0;\n hi = (hi + Math.imul(ah8, bh4)) | 0;\n lo = (lo + Math.imul(al7, bl5)) | 0;\n mid = (mid + Math.imul(al7, bh5)) | 0;\n mid = (mid + Math.imul(ah7, bl5)) | 0;\n hi = (hi + Math.imul(ah7, bh5)) | 0;\n lo = (lo + Math.imul(al6, bl6)) | 0;\n mid = (mid + Math.imul(al6, bh6)) | 0;\n mid = (mid + Math.imul(ah6, bl6)) | 0;\n hi = (hi + Math.imul(ah6, bh6)) | 0;\n lo = (lo + Math.imul(al5, bl7)) | 0;\n mid = (mid + Math.imul(al5, bh7)) | 0;\n mid = (mid + Math.imul(ah5, bl7)) | 0;\n hi = (hi + Math.imul(ah5, bh7)) | 0;\n lo = (lo + Math.imul(al4, bl8)) | 0;\n mid = (mid + Math.imul(al4, bh8)) | 0;\n mid = (mid + Math.imul(ah4, bl8)) | 0;\n hi = (hi + Math.imul(ah4, bh8)) | 0;\n lo = (lo + Math.imul(al3, bl9)) | 0;\n mid = (mid + Math.imul(al3, bh9)) | 0;\n mid = (mid + Math.imul(ah3, bl9)) | 0;\n hi = (hi + Math.imul(ah3, bh9)) | 0;\n var w12 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w12 >>> 26)) | 0;\n w12 &= 0x3ffffff;\n /* k = 13 */\n lo = Math.imul(al9, bl4);\n mid = Math.imul(al9, bh4);\n mid = (mid + Math.imul(ah9, bl4)) | 0;\n hi = Math.imul(ah9, bh4);\n lo = (lo + Math.imul(al8, bl5)) | 0;\n mid = (mid + Math.imul(al8, bh5)) | 0;\n mid = (mid + Math.imul(ah8, bl5)) | 0;\n hi = (hi + Math.imul(ah8, bh5)) | 0;\n lo = (lo + Math.imul(al7, bl6)) | 0;\n mid = (mid + Math.imul(al7, bh6)) | 0;\n mid = (mid + Math.imul(ah7, bl6)) | 0;\n hi = (hi + Math.imul(ah7, bh6)) | 0;\n lo = (lo + Math.imul(al6, bl7)) | 0;\n mid = (mid + Math.imul(al6, bh7)) | 0;\n mid = (mid + Math.imul(ah6, bl7)) | 0;\n hi = (hi + Math.imul(ah6, bh7)) | 0;\n lo = (lo + Math.imul(al5, bl8)) | 0;\n mid = (mid + Math.imul(al5, bh8)) | 0;\n mid = (mid + Math.imul(ah5, bl8)) | 0;\n hi = (hi + Math.imul(ah5, bh8)) | 0;\n lo = (lo + Math.imul(al4, bl9)) | 0;\n mid = (mid + Math.imul(al4, bh9)) | 0;\n mid = (mid + Math.imul(ah4, bl9)) | 0;\n hi = (hi + Math.imul(ah4, bh9)) | 0;\n var w13 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w13 >>> 26)) | 0;\n w13 &= 0x3ffffff;\n /* k = 14 */\n lo = Math.imul(al9, bl5);\n mid = Math.imul(al9, bh5);\n mid = (mid + Math.imul(ah9, bl5)) | 0;\n hi = Math.imul(ah9, bh5);\n lo = (lo + Math.imul(al8, bl6)) | 0;\n mid = (mid + Math.imul(al8, bh6)) | 0;\n mid = (mid + Math.imul(ah8, bl6)) | 0;\n hi = (hi + Math.imul(ah8, bh6)) | 0;\n lo = (lo + Math.imul(al7, bl7)) | 0;\n mid = (mid + Math.imul(al7, bh7)) | 0;\n mid = (mid + Math.imul(ah7, bl7)) | 0;\n hi = (hi + Math.imul(ah7, bh7)) | 0;\n lo = (lo + Math.imul(al6, bl8)) | 0;\n mid = (mid + Math.imul(al6, bh8)) | 0;\n mid = (mid + Math.imul(ah6, bl8)) | 0;\n hi = (hi + Math.imul(ah6, bh8)) | 0;\n lo = (lo + Math.imul(al5, bl9)) | 0;\n mid = (mid + Math.imul(al5, bh9)) | 0;\n mid = (mid + Math.imul(ah5, bl9)) | 0;\n hi = (hi + Math.imul(ah5, bh9)) | 0;\n var w14 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w14 >>> 26)) | 0;\n w14 &= 0x3ffffff;\n /* k = 15 */\n lo = Math.imul(al9, bl6);\n mid = Math.imul(al9, bh6);\n mid = (mid + Math.imul(ah9, bl6)) | 0;\n hi = Math.imul(ah9, bh6);\n lo = (lo + Math.imul(al8, bl7)) | 0;\n mid = (mid + Math.imul(al8, bh7)) | 0;\n mid = (mid + Math.imul(ah8, bl7)) | 0;\n hi = (hi + Math.imul(ah8, bh7)) | 0;\n lo = (lo + Math.imul(al7, bl8)) | 0;\n mid = (mid + Math.imul(al7, bh8)) | 0;\n mid = (mid + Math.imul(ah7, bl8)) | 0;\n hi = (hi + Math.imul(ah7, bh8)) | 0;\n lo = (lo + Math.imul(al6, bl9)) | 0;\n mid = (mid + Math.imul(al6, bh9)) | 0;\n mid = (mid + Math.imul(ah6, bl9)) | 0;\n hi = (hi + Math.imul(ah6, bh9)) | 0;\n var w15 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w15 >>> 26)) | 0;\n w15 &= 0x3ffffff;\n /* k = 16 */\n lo = Math.imul(al9, bl7);\n mid = Math.imul(al9, bh7);\n mid = (mid + Math.imul(ah9, bl7)) | 0;\n hi = Math.imul(ah9, bh7);\n lo = (lo + Math.imul(al8, bl8)) | 0;\n mid = (mid + Math.imul(al8, bh8)) | 0;\n mid = (mid + Math.imul(ah8, bl8)) | 0;\n hi = (hi + Math.imul(ah8, bh8)) | 0;\n lo = (lo + Math.imul(al7, bl9)) | 0;\n mid = (mid + Math.imul(al7, bh9)) | 0;\n mid = (mid + Math.imul(ah7, bl9)) | 0;\n hi = (hi + Math.imul(ah7, bh9)) | 0;\n var w16 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w16 >>> 26)) | 0;\n w16 &= 0x3ffffff;\n /* k = 17 */\n lo = Math.imul(al9, bl8);\n mid = Math.imul(al9, bh8);\n mid = (mid + Math.imul(ah9, bl8)) | 0;\n hi = Math.imul(ah9, bh8);\n lo = (lo + Math.imul(al8, bl9)) | 0;\n mid = (mid + Math.imul(al8, bh9)) | 0;\n mid = (mid + Math.imul(ah8, bl9)) | 0;\n hi = (hi + Math.imul(ah8, bh9)) | 0;\n var w17 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w17 >>> 26)) | 0;\n w17 &= 0x3ffffff;\n /* k = 18 */\n lo = Math.imul(al9, bl9);\n mid = Math.imul(al9, bh9);\n mid = (mid + Math.imul(ah9, bl9)) | 0;\n hi = Math.imul(ah9, bh9);\n var w18 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w18 >>> 26)) | 0;\n w18 &= 0x3ffffff;\n o[0] = w0;\n o[1] = w1;\n o[2] = w2;\n o[3] = w3;\n o[4] = w4;\n o[5] = w5;\n o[6] = w6;\n o[7] = w7;\n o[8] = w8;\n o[9] = w9;\n o[10] = w10;\n o[11] = w11;\n o[12] = w12;\n o[13] = w13;\n o[14] = w14;\n o[15] = w15;\n o[16] = w16;\n o[17] = w17;\n o[18] = w18;\n if (c !== 0) {\n o[19] = c;\n out.length++;\n }\n return out;\n };\n\n // Polyfill comb\n if (!Math.imul) {\n comb10MulTo = smallMulTo;\n }\n\n function bigMulTo (self, num, out) {\n out.negative = num.negative ^ self.negative;\n out.length = self.length + num.length;\n\n var carry = 0;\n var hncarry = 0;\n for (var k = 0; k < out.length - 1; k++) {\n // Sum all words with the same `i + j = k` and accumulate `ncarry`,\n // note that ncarry could be >= 0x3ffffff\n var ncarry = hncarry;\n hncarry = 0;\n var rword = carry & 0x3ffffff;\n var maxJ = Math.min(k, num.length - 1);\n for (var j = Math.max(0, k - self.length + 1); j <= maxJ; j++) {\n var i = k - j;\n var a = self.words[i] | 0;\n var b = num.words[j] | 0;\n var r = a * b;\n\n var lo = r & 0x3ffffff;\n ncarry = (ncarry + ((r / 0x4000000) | 0)) | 0;\n lo = (lo + rword) | 0;\n rword = lo & 0x3ffffff;\n ncarry = (ncarry + (lo >>> 26)) | 0;\n\n hncarry += ncarry >>> 26;\n ncarry &= 0x3ffffff;\n }\n out.words[k] = rword;\n carry = ncarry;\n ncarry = hncarry;\n }\n if (carry !== 0) {\n out.words[k] = carry;\n } else {\n out.length--;\n }\n\n return out.strip();\n }\n\n function jumboMulTo (self, num, out) {\n var fftm = new FFTM();\n return fftm.mulp(self, num, out);\n }\n\n BN.prototype.mulTo = function mulTo (num, out) {\n var res;\n var len = this.length + num.length;\n if (this.length === 10 && num.length === 10) {\n res = comb10MulTo(this, num, out);\n } else if (len < 63) {\n res = smallMulTo(this, num, out);\n } else if (len < 1024) {\n res = bigMulTo(this, num, out);\n } else {\n res = jumboMulTo(this, num, out);\n }\n\n return res;\n };\n\n // Cooley-Tukey algorithm for FFT\n // slightly revisited to rely on looping instead of recursion\n\n function FFTM (x, y) {\n this.x = x;\n this.y = y;\n }\n\n FFTM.prototype.makeRBT = function makeRBT (N) {\n var t = new Array(N);\n var l = BN.prototype._countBits(N) - 1;\n for (var i = 0; i < N; i++) {\n t[i] = this.revBin(i, l, N);\n }\n\n return t;\n };\n\n // Returns binary-reversed representation of `x`\n FFTM.prototype.revBin = function revBin (x, l, N) {\n if (x === 0 || x === N - 1) return x;\n\n var rb = 0;\n for (var i = 0; i < l; i++) {\n rb |= (x & 1) << (l - i - 1);\n x >>= 1;\n }\n\n return rb;\n };\n\n // Performs \"tweedling\" phase, therefore 'emulating'\n // behaviour of the recursive algorithm\n FFTM.prototype.permute = function permute (rbt, rws, iws, rtws, itws, N) {\n for (var i = 0; i < N; i++) {\n rtws[i] = rws[rbt[i]];\n itws[i] = iws[rbt[i]];\n }\n };\n\n FFTM.prototype.transform = function transform (rws, iws, rtws, itws, N, rbt) {\n this.permute(rbt, rws, iws, rtws, itws, N);\n\n for (var s = 1; s < N; s <<= 1) {\n var l = s << 1;\n\n var rtwdf = Math.cos(2 * Math.PI / l);\n var itwdf = Math.sin(2 * Math.PI / l);\n\n for (var p = 0; p < N; p += l) {\n var rtwdf_ = rtwdf;\n var itwdf_ = itwdf;\n\n for (var j = 0; j < s; j++) {\n var re = rtws[p + j];\n var ie = itws[p + j];\n\n var ro = rtws[p + j + s];\n var io = itws[p + j + s];\n\n var rx = rtwdf_ * ro - itwdf_ * io;\n\n io = rtwdf_ * io + itwdf_ * ro;\n ro = rx;\n\n rtws[p + j] = re + ro;\n itws[p + j] = ie + io;\n\n rtws[p + j + s] = re - ro;\n itws[p + j + s] = ie - io;\n\n /* jshint maxdepth : false */\n if (j !== l) {\n rx = rtwdf * rtwdf_ - itwdf * itwdf_;\n\n itwdf_ = rtwdf * itwdf_ + itwdf * rtwdf_;\n rtwdf_ = rx;\n }\n }\n }\n }\n };\n\n FFTM.prototype.guessLen13b = function guessLen13b (n, m) {\n var N = Math.max(m, n) | 1;\n var odd = N & 1;\n var i = 0;\n for (N = N / 2 | 0; N; N = N >>> 1) {\n i++;\n }\n\n return 1 << i + 1 + odd;\n };\n\n FFTM.prototype.conjugate = function conjugate (rws, iws, N) {\n if (N <= 1) return;\n\n for (var i = 0; i < N / 2; i++) {\n var t = rws[i];\n\n rws[i] = rws[N - i - 1];\n rws[N - i - 1] = t;\n\n t = iws[i];\n\n iws[i] = -iws[N - i - 1];\n iws[N - i - 1] = -t;\n }\n };\n\n FFTM.prototype.normalize13b = function normalize13b (ws, N) {\n var carry = 0;\n for (var i = 0; i < N / 2; i++) {\n var w = Math.round(ws[2 * i + 1] / N) * 0x2000 +\n Math.round(ws[2 * i] / N) +\n carry;\n\n ws[i] = w & 0x3ffffff;\n\n if (w < 0x4000000) {\n carry = 0;\n } else {\n carry = w / 0x4000000 | 0;\n }\n }\n\n return ws;\n };\n\n FFTM.prototype.convert13b = function convert13b (ws, len, rws, N) {\n var carry = 0;\n for (var i = 0; i < len; i++) {\n carry = carry + (ws[i] | 0);\n\n rws[2 * i] = carry & 0x1fff; carry = carry >>> 13;\n rws[2 * i + 1] = carry & 0x1fff; carry = carry >>> 13;\n }\n\n // Pad with zeroes\n for (i = 2 * len; i < N; ++i) {\n rws[i] = 0;\n }\n\n assert(carry === 0);\n assert((carry & ~0x1fff) === 0);\n };\n\n FFTM.prototype.stub = function stub (N) {\n var ph = new Array(N);\n for (var i = 0; i < N; i++) {\n ph[i] = 0;\n }\n\n return ph;\n };\n\n FFTM.prototype.mulp = function mulp (x, y, out) {\n var N = 2 * this.guessLen13b(x.length, y.length);\n\n var rbt = this.makeRBT(N);\n\n var _ = this.stub(N);\n\n var rws = new Array(N);\n var rwst = new Array(N);\n var iwst = new Array(N);\n\n var nrws = new Array(N);\n var nrwst = new Array(N);\n var niwst = new Array(N);\n\n var rmws = out.words;\n rmws.length = N;\n\n this.convert13b(x.words, x.length, rws, N);\n this.convert13b(y.words, y.length, nrws, N);\n\n this.transform(rws, _, rwst, iwst, N, rbt);\n this.transform(nrws, _, nrwst, niwst, N, rbt);\n\n for (var i = 0; i < N; i++) {\n var rx = rwst[i] * nrwst[i] - iwst[i] * niwst[i];\n iwst[i] = rwst[i] * niwst[i] + iwst[i] * nrwst[i];\n rwst[i] = rx;\n }\n\n this.conjugate(rwst, iwst, N);\n this.transform(rwst, iwst, rmws, _, N, rbt);\n this.conjugate(rmws, _, N);\n this.normalize13b(rmws, N);\n\n out.negative = x.negative ^ y.negative;\n out.length = x.length + y.length;\n return out.strip();\n };\n\n // Multiply `this` by `num`\n BN.prototype.mul = function mul (num) {\n var out = new BN(null);\n out.words = new Array(this.length + num.length);\n return this.mulTo(num, out);\n };\n\n // Multiply employing FFT\n BN.prototype.mulf = function mulf (num) {\n var out = new BN(null);\n out.words = new Array(this.length + num.length);\n return jumboMulTo(this, num, out);\n };\n\n // In-place Multiplication\n BN.prototype.imul = function imul (num) {\n return this.clone().mulTo(num, this);\n };\n\n BN.prototype.imuln = function imuln (num) {\n assert(typeof num === 'number');\n assert(num < 0x4000000);\n\n // Carry\n var carry = 0;\n for (var i = 0; i < this.length; i++) {\n var w = (this.words[i] | 0) * num;\n var lo = (w & 0x3ffffff) + (carry & 0x3ffffff);\n carry >>= 26;\n carry += (w / 0x4000000) | 0;\n // NOTE: lo is 27bit maximum\n carry += lo >>> 26;\n this.words[i] = lo & 0x3ffffff;\n }\n\n if (carry !== 0) {\n this.words[i] = carry;\n this.length++;\n }\n\n return this;\n };\n\n BN.prototype.muln = function muln (num) {\n return this.clone().imuln(num);\n };\n\n // `this` * `this`\n BN.prototype.sqr = function sqr () {\n return this.mul(this);\n };\n\n // `this` * `this` in-place\n BN.prototype.isqr = function isqr () {\n return this.imul(this.clone());\n };\n\n // Math.pow(`this`, `num`)\n BN.prototype.pow = function pow (num) {\n var w = toBitArray(num);\n if (w.length === 0) return new BN(1);\n\n // Skip leading zeroes\n var res = this;\n for (var i = 0; i < w.length; i++, res = res.sqr()) {\n if (w[i] !== 0) break;\n }\n\n if (++i < w.length) {\n for (var q = res.sqr(); i < w.length; i++, q = q.sqr()) {\n if (w[i] === 0) continue;\n\n res = res.mul(q);\n }\n }\n\n return res;\n };\n\n // Shift-left in-place\n BN.prototype.iushln = function iushln (bits) {\n assert(typeof bits === 'number' && bits >= 0);\n var r = bits % 26;\n var s = (bits - r) / 26;\n var carryMask = (0x3ffffff >>> (26 - r)) << (26 - r);\n var i;\n\n if (r !== 0) {\n var carry = 0;\n\n for (i = 0; i < this.length; i++) {\n var newCarry = this.words[i] & carryMask;\n var c = ((this.words[i] | 0) - newCarry) << r;\n this.words[i] = c | carry;\n carry = newCarry >>> (26 - r);\n }\n\n if (carry) {\n this.words[i] = carry;\n this.length++;\n }\n }\n\n if (s !== 0) {\n for (i = this.length - 1; i >= 0; i--) {\n this.words[i + s] = this.words[i];\n }\n\n for (i = 0; i < s; i++) {\n this.words[i] = 0;\n }\n\n this.length += s;\n }\n\n return this.strip();\n };\n\n BN.prototype.ishln = function ishln (bits) {\n // TODO(indutny): implement me\n assert(this.negative === 0);\n return this.iushln(bits);\n };\n\n // Shift-right in-place\n // NOTE: `hint` is a lowest bit before trailing zeroes\n // NOTE: if `extended` is present - it will be filled with destroyed bits\n BN.prototype.iushrn = function iushrn (bits, hint, extended) {\n assert(typeof bits === 'number' && bits >= 0);\n var h;\n if (hint) {\n h = (hint - (hint % 26)) / 26;\n } else {\n h = 0;\n }\n\n var r = bits % 26;\n var s = Math.min((bits - r) / 26, this.length);\n var mask = 0x3ffffff ^ ((0x3ffffff >>> r) << r);\n var maskedWords = extended;\n\n h -= s;\n h = Math.max(0, h);\n\n // Extended mode, copy masked part\n if (maskedWords) {\n for (var i = 0; i < s; i++) {\n maskedWords.words[i] = this.words[i];\n }\n maskedWords.length = s;\n }\n\n if (s === 0) {\n // No-op, we should not move anything at all\n } else if (this.length > s) {\n this.length -= s;\n for (i = 0; i < this.length; i++) {\n this.words[i] = this.words[i + s];\n }\n } else {\n this.words[0] = 0;\n this.length = 1;\n }\n\n var carry = 0;\n for (i = this.length - 1; i >= 0 && (carry !== 0 || i >= h); i--) {\n var word = this.words[i] | 0;\n this.words[i] = (carry << (26 - r)) | (word >>> r);\n carry = word & mask;\n }\n\n // Push carried bits as a mask\n if (maskedWords && carry !== 0) {\n maskedWords.words[maskedWords.length++] = carry;\n }\n\n if (this.length === 0) {\n this.words[0] = 0;\n this.length = 1;\n }\n\n return this.strip();\n };\n\n BN.prototype.ishrn = function ishrn (bits, hint, extended) {\n // TODO(indutny): implement me\n assert(this.negative === 0);\n return this.iushrn(bits, hint, extended);\n };\n\n // Shift-left\n BN.prototype.shln = function shln (bits) {\n return this.clone().ishln(bits);\n };\n\n BN.prototype.ushln = function ushln (bits) {\n return this.clone().iushln(bits);\n };\n\n // Shift-right\n BN.prototype.shrn = function shrn (bits) {\n return this.clone().ishrn(bits);\n };\n\n BN.prototype.ushrn = function ushrn (bits) {\n return this.clone().iushrn(bits);\n };\n\n // Test if n bit is set\n BN.prototype.testn = function testn (bit) {\n assert(typeof bit === 'number' && bit >= 0);\n var r = bit % 26;\n var s = (bit - r) / 26;\n var q = 1 << r;\n\n // Fast case: bit is much higher than all existing words\n if (this.length <= s) return false;\n\n // Check bit and return\n var w = this.words[s];\n\n return !!(w & q);\n };\n\n // Return only lowers bits of number (in-place)\n BN.prototype.imaskn = function imaskn (bits) {\n assert(typeof bits === 'number' && bits >= 0);\n var r = bits % 26;\n var s = (bits - r) / 26;\n\n assert(this.negative === 0, 'imaskn works only with positive numbers');\n\n if (this.length <= s) {\n return this;\n }\n\n if (r !== 0) {\n s++;\n }\n this.length = Math.min(s, this.length);\n\n if (r !== 0) {\n var mask = 0x3ffffff ^ ((0x3ffffff >>> r) << r);\n this.words[this.length - 1] &= mask;\n }\n\n return this.strip();\n };\n\n // Return only lowers bits of number\n BN.prototype.maskn = function maskn (bits) {\n return this.clone().imaskn(bits);\n };\n\n // Add plain number `num` to `this`\n BN.prototype.iaddn = function iaddn (num) {\n assert(typeof num === 'number');\n assert(num < 0x4000000);\n if (num < 0) return this.isubn(-num);\n\n // Possible sign change\n if (this.negative !== 0) {\n if (this.length === 1 && (this.words[0] | 0) < num) {\n this.words[0] = num - (this.words[0] | 0);\n this.negative = 0;\n return this;\n }\n\n this.negative = 0;\n this.isubn(num);\n this.negative = 1;\n return this;\n }\n\n // Add without checks\n return this._iaddn(num);\n };\n\n BN.prototype._iaddn = function _iaddn (num) {\n this.words[0] += num;\n\n // Carry\n for (var i = 0; i < this.length && this.words[i] >= 0x4000000; i++) {\n this.words[i] -= 0x4000000;\n if (i === this.length - 1) {\n this.words[i + 1] = 1;\n } else {\n this.words[i + 1]++;\n }\n }\n this.length = Math.max(this.length, i + 1);\n\n return this;\n };\n\n // Subtract plain number `num` from `this`\n BN.prototype.isubn = function isubn (num) {\n assert(typeof num === 'number');\n assert(num < 0x4000000);\n if (num < 0) return this.iaddn(-num);\n\n if (this.negative !== 0) {\n this.negative = 0;\n this.iaddn(num);\n this.negative = 1;\n return this;\n }\n\n this.words[0] -= num;\n\n if (this.length === 1 && this.words[0] < 0) {\n this.words[0] = -this.words[0];\n this.negative = 1;\n } else {\n // Carry\n for (var i = 0; i < this.length && this.words[i] < 0; i++) {\n this.words[i] += 0x4000000;\n this.words[i + 1] -= 1;\n }\n }\n\n return this.strip();\n };\n\n BN.prototype.addn = function addn (num) {\n return this.clone().iaddn(num);\n };\n\n BN.prototype.subn = function subn (num) {\n return this.clone().isubn(num);\n };\n\n BN.prototype.iabs = function iabs () {\n this.negative = 0;\n\n return this;\n };\n\n BN.prototype.abs = function abs () {\n return this.clone().iabs();\n };\n\n BN.prototype._ishlnsubmul = function _ishlnsubmul (num, mul, shift) {\n var len = num.length + shift;\n var i;\n\n this._expand(len);\n\n var w;\n var carry = 0;\n for (i = 0; i < num.length; i++) {\n w = (this.words[i + shift] | 0) + carry;\n var right = (num.words[i] | 0) * mul;\n w -= right & 0x3ffffff;\n carry = (w >> 26) - ((right / 0x4000000) | 0);\n this.words[i + shift] = w & 0x3ffffff;\n }\n for (; i < this.length - shift; i++) {\n w = (this.words[i + shift] | 0) + carry;\n carry = w >> 26;\n this.words[i + shift] = w & 0x3ffffff;\n }\n\n if (carry === 0) return this.strip();\n\n // Subtraction overflow\n assert(carry === -1);\n carry = 0;\n for (i = 0; i < this.length; i++) {\n w = -(this.words[i] | 0) + carry;\n carry = w >> 26;\n this.words[i] = w & 0x3ffffff;\n }\n this.negative = 1;\n\n return this.strip();\n };\n\n BN.prototype._wordDiv = function _wordDiv (num, mode) {\n var shift = this.length - num.length;\n\n var a = this.clone();\n var b = num;\n\n // Normalize\n var bhi = b.words[b.length - 1] | 0;\n var bhiBits = this._countBits(bhi);\n shift = 26 - bhiBits;\n if (shift !== 0) {\n b = b.ushln(shift);\n a.iushln(shift);\n bhi = b.words[b.length - 1] | 0;\n }\n\n // Initialize quotient\n var m = a.length - b.length;\n var q;\n\n if (mode !== 'mod') {\n q = new BN(null);\n q.length = m + 1;\n q.words = new Array(q.length);\n for (var i = 0; i < q.length; i++) {\n q.words[i] = 0;\n }\n }\n\n var diff = a.clone()._ishlnsubmul(b, 1, m);\n if (diff.negative === 0) {\n a = diff;\n if (q) {\n q.words[m] = 1;\n }\n }\n\n for (var j = m - 1; j >= 0; j--) {\n var qj = (a.words[b.length + j] | 0) * 0x4000000 +\n (a.words[b.length + j - 1] | 0);\n\n // NOTE: (qj / bhi) is (0x3ffffff * 0x4000000 + 0x3ffffff) / 0x2000000 max\n // (0x7ffffff)\n qj = Math.min((qj / bhi) | 0, 0x3ffffff);\n\n a._ishlnsubmul(b, qj, j);\n while (a.negative !== 0) {\n qj--;\n a.negative = 0;\n a._ishlnsubmul(b, 1, j);\n if (!a.isZero()) {\n a.negative ^= 1;\n }\n }\n if (q) {\n q.words[j] = qj;\n }\n }\n if (q) {\n q.strip();\n }\n a.strip();\n\n // Denormalize\n if (mode !== 'div' && shift !== 0) {\n a.iushrn(shift);\n }\n\n return {\n div: q || null,\n mod: a\n };\n };\n\n // NOTE: 1) `mode` can be set to `mod` to request mod only,\n // to `div` to request div only, or be absent to\n // request both div & mod\n // 2) `positive` is true if unsigned mod is requested\n BN.prototype.divmod = function divmod (num, mode, positive) {\n assert(!num.isZero());\n\n if (this.isZero()) {\n return {\n div: new BN(0),\n mod: new BN(0)\n };\n }\n\n var div, mod, res;\n if (this.negative !== 0 && num.negative === 0) {\n res = this.neg().divmod(num, mode);\n\n if (mode !== 'mod') {\n div = res.div.neg();\n }\n\n if (mode !== 'div') {\n mod = res.mod.neg();\n if (positive && mod.negative !== 0) {\n mod.iadd(num);\n }\n }\n\n return {\n div: div,\n mod: mod\n };\n }\n\n if (this.negative === 0 && num.negative !== 0) {\n res = this.divmod(num.neg(), mode);\n\n if (mode !== 'mod') {\n div = res.div.neg();\n }\n\n return {\n div: div,\n mod: res.mod\n };\n }\n\n if ((this.negative & num.negative) !== 0) {\n res = this.neg().divmod(num.neg(), mode);\n\n if (mode !== 'div') {\n mod = res.mod.neg();\n if (positive && mod.negative !== 0) {\n mod.isub(num);\n }\n }\n\n return {\n div: res.div,\n mod: mod\n };\n }\n\n // Both numbers are positive at this point\n\n // Strip both numbers to approximate shift value\n if (num.length > this.length || this.cmp(num) < 0) {\n return {\n div: new BN(0),\n mod: this\n };\n }\n\n // Very short reduction\n if (num.length === 1) {\n if (mode === 'div') {\n return {\n div: this.divn(num.words[0]),\n mod: null\n };\n }\n\n if (mode === 'mod') {\n return {\n div: null,\n mod: new BN(this.modn(num.words[0]))\n };\n }\n\n return {\n div: this.divn(num.words[0]),\n mod: new BN(this.modn(num.words[0]))\n };\n }\n\n return this._wordDiv(num, mode);\n };\n\n // Find `this` / `num`\n BN.prototype.div = function div (num) {\n return this.divmod(num, 'div', false).div;\n };\n\n // Find `this` % `num`\n BN.prototype.mod = function mod (num) {\n return this.divmod(num, 'mod', false).mod;\n };\n\n BN.prototype.umod = function umod (num) {\n return this.divmod(num, 'mod', true).mod;\n };\n\n // Find Round(`this` / `num`)\n BN.prototype.divRound = function divRound (num) {\n var dm = this.divmod(num);\n\n // Fast case - exact division\n if (dm.mod.isZero()) return dm.div;\n\n var mod = dm.div.negative !== 0 ? dm.mod.isub(num) : dm.mod;\n\n var half = num.ushrn(1);\n var r2 = num.andln(1);\n var cmp = mod.cmp(half);\n\n // Round down\n if (cmp < 0 || r2 === 1 && cmp === 0) return dm.div;\n\n // Round up\n return dm.div.negative !== 0 ? dm.div.isubn(1) : dm.div.iaddn(1);\n };\n\n BN.prototype.modn = function modn (num) {\n assert(num <= 0x3ffffff);\n var p = (1 << 26) % num;\n\n var acc = 0;\n for (var i = this.length - 1; i >= 0; i--) {\n acc = (p * acc + (this.words[i] | 0)) % num;\n }\n\n return acc;\n };\n\n // In-place division by number\n BN.prototype.idivn = function idivn (num) {\n assert(num <= 0x3ffffff);\n\n var carry = 0;\n for (var i = this.length - 1; i >= 0; i--) {\n var w = (this.words[i] | 0) + carry * 0x4000000;\n this.words[i] = (w / num) | 0;\n carry = w % num;\n }\n\n return this.strip();\n };\n\n BN.prototype.divn = function divn (num) {\n return this.clone().idivn(num);\n };\n\n BN.prototype.egcd = function egcd (p) {\n assert(p.negative === 0);\n assert(!p.isZero());\n\n var x = this;\n var y = p.clone();\n\n if (x.negative !== 0) {\n x = x.umod(p);\n } else {\n x = x.clone();\n }\n\n // A * x + B * y = x\n var A = new BN(1);\n var B = new BN(0);\n\n // C * x + D * y = y\n var C = new BN(0);\n var D = new BN(1);\n\n var g = 0;\n\n while (x.isEven() && y.isEven()) {\n x.iushrn(1);\n y.iushrn(1);\n ++g;\n }\n\n var yp = y.clone();\n var xp = x.clone();\n\n while (!x.isZero()) {\n for (var i = 0, im = 1; (x.words[0] & im) === 0 && i < 26; ++i, im <<= 1);\n if (i > 0) {\n x.iushrn(i);\n while (i-- > 0) {\n if (A.isOdd() || B.isOdd()) {\n A.iadd(yp);\n B.isub(xp);\n }\n\n A.iushrn(1);\n B.iushrn(1);\n }\n }\n\n for (var j = 0, jm = 1; (y.words[0] & jm) === 0 && j < 26; ++j, jm <<= 1);\n if (j > 0) {\n y.iushrn(j);\n while (j-- > 0) {\n if (C.isOdd() || D.isOdd()) {\n C.iadd(yp);\n D.isub(xp);\n }\n\n C.iushrn(1);\n D.iushrn(1);\n }\n }\n\n if (x.cmp(y) >= 0) {\n x.isub(y);\n A.isub(C);\n B.isub(D);\n } else {\n y.isub(x);\n C.isub(A);\n D.isub(B);\n }\n }\n\n return {\n a: C,\n b: D,\n gcd: y.iushln(g)\n };\n };\n\n // This is reduced incarnation of the binary EEA\n // above, designated to invert members of the\n // _prime_ fields F(p) at a maximal speed\n BN.prototype._invmp = function _invmp (p) {\n assert(p.negative === 0);\n assert(!p.isZero());\n\n var a = this;\n var b = p.clone();\n\n if (a.negative !== 0) {\n a = a.umod(p);\n } else {\n a = a.clone();\n }\n\n var x1 = new BN(1);\n var x2 = new BN(0);\n\n var delta = b.clone();\n\n while (a.cmpn(1) > 0 && b.cmpn(1) > 0) {\n for (var i = 0, im = 1; (a.words[0] & im) === 0 && i < 26; ++i, im <<= 1);\n if (i > 0) {\n a.iushrn(i);\n while (i-- > 0) {\n if (x1.isOdd()) {\n x1.iadd(delta);\n }\n\n x1.iushrn(1);\n }\n }\n\n for (var j = 0, jm = 1; (b.words[0] & jm) === 0 && j < 26; ++j, jm <<= 1);\n if (j > 0) {\n b.iushrn(j);\n while (j-- > 0) {\n if (x2.isOdd()) {\n x2.iadd(delta);\n }\n\n x2.iushrn(1);\n }\n }\n\n if (a.cmp(b) >= 0) {\n a.isub(b);\n x1.isub(x2);\n } else {\n b.isub(a);\n x2.isub(x1);\n }\n }\n\n var res;\n if (a.cmpn(1) === 0) {\n res = x1;\n } else {\n res = x2;\n }\n\n if (res.cmpn(0) < 0) {\n res.iadd(p);\n }\n\n return res;\n };\n\n BN.prototype.gcd = function gcd (num) {\n if (this.isZero()) return num.abs();\n if (num.isZero()) return this.abs();\n\n var a = this.clone();\n var b = num.clone();\n a.negative = 0;\n b.negative = 0;\n\n // Remove common factor of two\n for (var shift = 0; a.isEven() && b.isEven(); shift++) {\n a.iushrn(1);\n b.iushrn(1);\n }\n\n do {\n while (a.isEven()) {\n a.iushrn(1);\n }\n while (b.isEven()) {\n b.iushrn(1);\n }\n\n var r = a.cmp(b);\n if (r < 0) {\n // Swap `a` and `b` to make `a` always bigger than `b`\n var t = a;\n a = b;\n b = t;\n } else if (r === 0 || b.cmpn(1) === 0) {\n break;\n }\n\n a.isub(b);\n } while (true);\n\n return b.iushln(shift);\n };\n\n // Invert number in the field F(num)\n BN.prototype.invm = function invm (num) {\n return this.egcd(num).a.umod(num);\n };\n\n BN.prototype.isEven = function isEven () {\n return (this.words[0] & 1) === 0;\n };\n\n BN.prototype.isOdd = function isOdd () {\n return (this.words[0] & 1) === 1;\n };\n\n // And first word and num\n BN.prototype.andln = function andln (num) {\n return this.words[0] & num;\n };\n\n // Increment at the bit position in-line\n BN.prototype.bincn = function bincn (bit) {\n assert(typeof bit === 'number');\n var r = bit % 26;\n var s = (bit - r) / 26;\n var q = 1 << r;\n\n // Fast case: bit is much higher than all existing words\n if (this.length <= s) {\n this._expand(s + 1);\n this.words[s] |= q;\n return this;\n }\n\n // Add bit and propagate, if needed\n var carry = q;\n for (var i = s; carry !== 0 && i < this.length; i++) {\n var w = this.words[i] | 0;\n w += carry;\n carry = w >>> 26;\n w &= 0x3ffffff;\n this.words[i] = w;\n }\n if (carry !== 0) {\n this.words[i] = carry;\n this.length++;\n }\n return this;\n };\n\n BN.prototype.isZero = function isZero () {\n return this.length === 1 && this.words[0] === 0;\n };\n\n BN.prototype.cmpn = function cmpn (num) {\n var negative = num < 0;\n\n if (this.negative !== 0 && !negative) return -1;\n if (this.negative === 0 && negative) return 1;\n\n this.strip();\n\n var res;\n if (this.length > 1) {\n res = 1;\n } else {\n if (negative) {\n num = -num;\n }\n\n assert(num <= 0x3ffffff, 'Number is too big');\n\n var w = this.words[0] | 0;\n res = w === num ? 0 : w < num ? -1 : 1;\n }\n if (this.negative !== 0) return -res | 0;\n return res;\n };\n\n // Compare two numbers and return:\n // 1 - if `this` > `num`\n // 0 - if `this` == `num`\n // -1 - if `this` < `num`\n BN.prototype.cmp = function cmp (num) {\n if (this.negative !== 0 && num.negative === 0) return -1;\n if (this.negative === 0 && num.negative !== 0) return 1;\n\n var res = this.ucmp(num);\n if (this.negative !== 0) return -res | 0;\n return res;\n };\n\n // Unsigned comparison\n BN.prototype.ucmp = function ucmp (num) {\n // At this point both numbers have the same sign\n if (this.length > num.length) return 1;\n if (this.length < num.length) return -1;\n\n var res = 0;\n for (var i = this.length - 1; i >= 0; i--) {\n var a = this.words[i] | 0;\n var b = num.words[i] | 0;\n\n if (a === b) continue;\n if (a < b) {\n res = -1;\n } else if (a > b) {\n res = 1;\n }\n break;\n }\n return res;\n };\n\n BN.prototype.gtn = function gtn (num) {\n return this.cmpn(num) === 1;\n };\n\n BN.prototype.gt = function gt (num) {\n return this.cmp(num) === 1;\n };\n\n BN.prototype.gten = function gten (num) {\n return this.cmpn(num) >= 0;\n };\n\n BN.prototype.gte = function gte (num) {\n return this.cmp(num) >= 0;\n };\n\n BN.prototype.ltn = function ltn (num) {\n return this.cmpn(num) === -1;\n };\n\n BN.prototype.lt = function lt (num) {\n return this.cmp(num) === -1;\n };\n\n BN.prototype.lten = function lten (num) {\n return this.cmpn(num) <= 0;\n };\n\n BN.prototype.lte = function lte (num) {\n return this.cmp(num) <= 0;\n };\n\n BN.prototype.eqn = function eqn (num) {\n return this.cmpn(num) === 0;\n };\n\n BN.prototype.eq = function eq (num) {\n return this.cmp(num) === 0;\n };\n\n //\n // A reduce context, could be using montgomery or something better, depending\n // on the `m` itself.\n //\n BN.red = function red (num) {\n return new Red(num);\n };\n\n BN.prototype.toRed = function toRed (ctx) {\n assert(!this.red, 'Already a number in reduction context');\n assert(this.negative === 0, 'red works only with positives');\n return ctx.convertTo(this)._forceRed(ctx);\n };\n\n BN.prototype.fromRed = function fromRed () {\n assert(this.red, 'fromRed works only with numbers in reduction context');\n return this.red.convertFrom(this);\n };\n\n BN.prototype._forceRed = function _forceRed (ctx) {\n this.red = ctx;\n return this;\n };\n\n BN.prototype.forceRed = function forceRed (ctx) {\n assert(!this.red, 'Already a number in reduction context');\n return this._forceRed(ctx);\n };\n\n BN.prototype.redAdd = function redAdd (num) {\n assert(this.red, 'redAdd works only with red numbers');\n return this.red.add(this, num);\n };\n\n BN.prototype.redIAdd = function redIAdd (num) {\n assert(this.red, 'redIAdd works only with red numbers');\n return this.red.iadd(this, num);\n };\n\n BN.prototype.redSub = function redSub (num) {\n assert(this.red, 'redSub works only with red numbers');\n return this.red.sub(this, num);\n };\n\n BN.prototype.redISub = function redISub (num) {\n assert(this.red, 'redISub works only with red numbers');\n return this.red.isub(this, num);\n };\n\n BN.prototype.redShl = function redShl (num) {\n assert(this.red, 'redShl works only with red numbers');\n return this.red.shl(this, num);\n };\n\n BN.prototype.redMul = function redMul (num) {\n assert(this.red, 'redMul works only with red numbers');\n this.red._verify2(this, num);\n return this.red.mul(this, num);\n };\n\n BN.prototype.redIMul = function redIMul (num) {\n assert(this.red, 'redMul works only with red numbers');\n this.red._verify2(this, num);\n return this.red.imul(this, num);\n };\n\n BN.prototype.redSqr = function redSqr () {\n assert(this.red, 'redSqr works only with red numbers');\n this.red._verify1(this);\n return this.red.sqr(this);\n };\n\n BN.prototype.redISqr = function redISqr () {\n assert(this.red, 'redISqr works only with red numbers');\n this.red._verify1(this);\n return this.red.isqr(this);\n };\n\n // Square root over p\n BN.prototype.redSqrt = function redSqrt () {\n assert(this.red, 'redSqrt works only with red numbers');\n this.red._verify1(this);\n return this.red.sqrt(this);\n };\n\n BN.prototype.redInvm = function redInvm () {\n assert(this.red, 'redInvm works only with red numbers');\n this.red._verify1(this);\n return this.red.invm(this);\n };\n\n // Return negative clone of `this` % `red modulo`\n BN.prototype.redNeg = function redNeg () {\n assert(this.red, 'redNeg works only with red numbers');\n this.red._verify1(this);\n return this.red.neg(this);\n };\n\n BN.prototype.redPow = function redPow (num) {\n assert(this.red && !num.red, 'redPow(normalNum)');\n this.red._verify1(this);\n return this.red.pow(this, num);\n };\n\n // Prime numbers with efficient reduction\n var primes = {\n k256: null,\n p224: null,\n p192: null,\n p25519: null\n };\n\n // Pseudo-Mersenne prime\n function MPrime (name, p) {\n // P = 2 ^ N - K\n this.name = name;\n this.p = new BN(p, 16);\n this.n = this.p.bitLength();\n this.k = new BN(1).iushln(this.n).isub(this.p);\n\n this.tmp = this._tmp();\n }\n\n MPrime.prototype._tmp = function _tmp () {\n var tmp = new BN(null);\n tmp.words = new Array(Math.ceil(this.n / 13));\n return tmp;\n };\n\n MPrime.prototype.ireduce = function ireduce (num) {\n // Assumes that `num` is less than `P^2`\n // num = HI * (2 ^ N - K) + HI * K + LO = HI * K + LO (mod P)\n var r = num;\n var rlen;\n\n do {\n this.split(r, this.tmp);\n r = this.imulK(r);\n r = r.iadd(this.tmp);\n rlen = r.bitLength();\n } while (rlen > this.n);\n\n var cmp = rlen < this.n ? -1 : r.ucmp(this.p);\n if (cmp === 0) {\n r.words[0] = 0;\n r.length = 1;\n } else if (cmp > 0) {\n r.isub(this.p);\n } else {\n if (r.strip !== undefined) {\n // r is BN v4 instance\n r.strip();\n } else {\n // r is BN v5 instance\n r._strip();\n }\n }\n\n return r;\n };\n\n MPrime.prototype.split = function split (input, out) {\n input.iushrn(this.n, 0, out);\n };\n\n MPrime.prototype.imulK = function imulK (num) {\n return num.imul(this.k);\n };\n\n function K256 () {\n MPrime.call(\n this,\n 'k256',\n 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff fffffffe fffffc2f');\n }\n inherits(K256, MPrime);\n\n K256.prototype.split = function split (input, output) {\n // 256 = 9 * 26 + 22\n var mask = 0x3fffff;\n\n var outLen = Math.min(input.length, 9);\n for (var i = 0; i < outLen; i++) {\n output.words[i] = input.words[i];\n }\n output.length = outLen;\n\n if (input.length <= 9) {\n input.words[0] = 0;\n input.length = 1;\n return;\n }\n\n // Shift by 9 limbs\n var prev = input.words[9];\n output.words[output.length++] = prev & mask;\n\n for (i = 10; i < input.length; i++) {\n var next = input.words[i] | 0;\n input.words[i - 10] = ((next & mask) << 4) | (prev >>> 22);\n prev = next;\n }\n prev >>>= 22;\n input.words[i - 10] = prev;\n if (prev === 0 && input.length > 10) {\n input.length -= 10;\n } else {\n input.length -= 9;\n }\n };\n\n K256.prototype.imulK = function imulK (num) {\n // K = 0x1000003d1 = [ 0x40, 0x3d1 ]\n num.words[num.length] = 0;\n num.words[num.length + 1] = 0;\n num.length += 2;\n\n // bounded at: 0x40 * 0x3ffffff + 0x3d0 = 0x100000390\n var lo = 0;\n for (var i = 0; i < num.length; i++) {\n var w = num.words[i] | 0;\n lo += w * 0x3d1;\n num.words[i] = lo & 0x3ffffff;\n lo = w * 0x40 + ((lo / 0x4000000) | 0);\n }\n\n // Fast length reduction\n if (num.words[num.length - 1] === 0) {\n num.length--;\n if (num.words[num.length - 1] === 0) {\n num.length--;\n }\n }\n return num;\n };\n\n function P224 () {\n MPrime.call(\n this,\n 'p224',\n 'ffffffff ffffffff ffffffff ffffffff 00000000 00000000 00000001');\n }\n inherits(P224, MPrime);\n\n function P192 () {\n MPrime.call(\n this,\n 'p192',\n 'ffffffff ffffffff ffffffff fffffffe ffffffff ffffffff');\n }\n inherits(P192, MPrime);\n\n function P25519 () {\n // 2 ^ 255 - 19\n MPrime.call(\n this,\n '25519',\n '7fffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffed');\n }\n inherits(P25519, MPrime);\n\n P25519.prototype.imulK = function imulK (num) {\n // K = 0x13\n var carry = 0;\n for (var i = 0; i < num.length; i++) {\n var hi = (num.words[i] | 0) * 0x13 + carry;\n var lo = hi & 0x3ffffff;\n hi >>>= 26;\n\n num.words[i] = lo;\n carry = hi;\n }\n if (carry !== 0) {\n num.words[num.length++] = carry;\n }\n return num;\n };\n\n // Exported mostly for testing purposes, use plain name instead\n BN._prime = function prime (name) {\n // Cached version of prime\n if (primes[name]) return primes[name];\n\n var prime;\n if (name === 'k256') {\n prime = new K256();\n } else if (name === 'p224') {\n prime = new P224();\n } else if (name === 'p192') {\n prime = new P192();\n } else if (name === 'p25519') {\n prime = new P25519();\n } else {\n throw new Error('Unknown prime ' + name);\n }\n primes[name] = prime;\n\n return prime;\n };\n\n //\n // Base reduction engine\n //\n function Red (m) {\n if (typeof m === 'string') {\n var prime = BN._prime(m);\n this.m = prime.p;\n this.prime = prime;\n } else {\n assert(m.gtn(1), 'modulus must be greater than 1');\n this.m = m;\n this.prime = null;\n }\n }\n\n Red.prototype._verify1 = function _verify1 (a) {\n assert(a.negative === 0, 'red works only with positives');\n assert(a.red, 'red works only with red numbers');\n };\n\n Red.prototype._verify2 = function _verify2 (a, b) {\n assert((a.negative | b.negative) === 0, 'red works only with positives');\n assert(a.red && a.red === b.red,\n 'red works only with red numbers');\n };\n\n Red.prototype.imod = function imod (a) {\n if (this.prime) return this.prime.ireduce(a)._forceRed(this);\n return a.umod(this.m)._forceRed(this);\n };\n\n Red.prototype.neg = function neg (a) {\n if (a.isZero()) {\n return a.clone();\n }\n\n return this.m.sub(a)._forceRed(this);\n };\n\n Red.prototype.add = function add (a, b) {\n this._verify2(a, b);\n\n var res = a.add(b);\n if (res.cmp(this.m) >= 0) {\n res.isub(this.m);\n }\n return res._forceRed(this);\n };\n\n Red.prototype.iadd = function iadd (a, b) {\n this._verify2(a, b);\n\n var res = a.iadd(b);\n if (res.cmp(this.m) >= 0) {\n res.isub(this.m);\n }\n return res;\n };\n\n Red.prototype.sub = function sub (a, b) {\n this._verify2(a, b);\n\n var res = a.sub(b);\n if (res.cmpn(0) < 0) {\n res.iadd(this.m);\n }\n return res._forceRed(this);\n };\n\n Red.prototype.isub = function isub (a, b) {\n this._verify2(a, b);\n\n var res = a.isub(b);\n if (res.cmpn(0) < 0) {\n res.iadd(this.m);\n }\n return res;\n };\n\n Red.prototype.shl = function shl (a, num) {\n this._verify1(a);\n return this.imod(a.ushln(num));\n };\n\n Red.prototype.imul = function imul (a, b) {\n this._verify2(a, b);\n return this.imod(a.imul(b));\n };\n\n Red.prototype.mul = function mul (a, b) {\n this._verify2(a, b);\n return this.imod(a.mul(b));\n };\n\n Red.prototype.isqr = function isqr (a) {\n return this.imul(a, a.clone());\n };\n\n Red.prototype.sqr = function sqr (a) {\n return this.mul(a, a);\n };\n\n Red.prototype.sqrt = function sqrt (a) {\n if (a.isZero()) return a.clone();\n\n var mod3 = this.m.andln(3);\n assert(mod3 % 2 === 1);\n\n // Fast case\n if (mod3 === 3) {\n var pow = this.m.add(new BN(1)).iushrn(2);\n return this.pow(a, pow);\n }\n\n // Tonelli-Shanks algorithm (Totally unoptimized and slow)\n //\n // Find Q and S, that Q * 2 ^ S = (P - 1)\n var q = this.m.subn(1);\n var s = 0;\n while (!q.isZero() && q.andln(1) === 0) {\n s++;\n q.iushrn(1);\n }\n assert(!q.isZero());\n\n var one = new BN(1).toRed(this);\n var nOne = one.redNeg();\n\n // Find quadratic non-residue\n // NOTE: Max is such because of generalized Riemann hypothesis.\n var lpow = this.m.subn(1).iushrn(1);\n var z = this.m.bitLength();\n z = new BN(2 * z * z).toRed(this);\n\n while (this.pow(z, lpow).cmp(nOne) !== 0) {\n z.redIAdd(nOne);\n }\n\n var c = this.pow(z, q);\n var r = this.pow(a, q.addn(1).iushrn(1));\n var t = this.pow(a, q);\n var m = s;\n while (t.cmp(one) !== 0) {\n var tmp = t;\n for (var i = 0; tmp.cmp(one) !== 0; i++) {\n tmp = tmp.redSqr();\n }\n assert(i < m);\n var b = this.pow(c, new BN(1).iushln(m - i - 1));\n\n r = r.redMul(b);\n c = b.redSqr();\n t = t.redMul(c);\n m = i;\n }\n\n return r;\n };\n\n Red.prototype.invm = function invm (a) {\n var inv = a._invmp(this.m);\n if (inv.negative !== 0) {\n inv.negative = 0;\n return this.imod(inv).redNeg();\n } else {\n return this.imod(inv);\n }\n };\n\n Red.prototype.pow = function pow (a, num) {\n if (num.isZero()) return new BN(1).toRed(this);\n if (num.cmpn(1) === 0) return a.clone();\n\n var windowSize = 4;\n var wnd = new Array(1 << windowSize);\n wnd[0] = new BN(1).toRed(this);\n wnd[1] = a;\n for (var i = 2; i < wnd.length; i++) {\n wnd[i] = this.mul(wnd[i - 1], a);\n }\n\n var res = wnd[0];\n var current = 0;\n var currentLen = 0;\n var start = num.bitLength() % 26;\n if (start === 0) {\n start = 26;\n }\n\n for (i = num.length - 1; i >= 0; i--) {\n var word = num.words[i];\n for (var j = start - 1; j >= 0; j--) {\n var bit = (word >> j) & 1;\n if (res !== wnd[0]) {\n res = this.sqr(res);\n }\n\n if (bit === 0 && current === 0) {\n currentLen = 0;\n continue;\n }\n\n current <<= 1;\n current |= bit;\n currentLen++;\n if (currentLen !== windowSize && (i !== 0 || j !== 0)) continue;\n\n res = this.mul(res, wnd[current]);\n currentLen = 0;\n current = 0;\n }\n start = 26;\n }\n\n return res;\n };\n\n Red.prototype.convertTo = function convertTo (num) {\n var r = num.umod(this.m);\n\n return r === num ? r.clone() : r;\n };\n\n Red.prototype.convertFrom = function convertFrom (num) {\n var res = num.clone();\n res.red = null;\n return res;\n };\n\n //\n // Montgomery method engine\n //\n\n BN.mont = function mont (num) {\n return new Mont(num);\n };\n\n function Mont (m) {\n Red.call(this, m);\n\n this.shift = this.m.bitLength();\n if (this.shift % 26 !== 0) {\n this.shift += 26 - (this.shift % 26);\n }\n\n this.r = new BN(1).iushln(this.shift);\n this.r2 = this.imod(this.r.sqr());\n this.rinv = this.r._invmp(this.m);\n\n this.minv = this.rinv.mul(this.r).isubn(1).div(this.m);\n this.minv = this.minv.umod(this.r);\n this.minv = this.r.sub(this.minv);\n }\n inherits(Mont, Red);\n\n Mont.prototype.convertTo = function convertTo (num) {\n return this.imod(num.ushln(this.shift));\n };\n\n Mont.prototype.convertFrom = function convertFrom (num) {\n var r = this.imod(num.mul(this.rinv));\n r.red = null;\n return r;\n };\n\n Mont.prototype.imul = function imul (a, b) {\n if (a.isZero() || b.isZero()) {\n a.words[0] = 0;\n a.length = 1;\n return a;\n }\n\n var t = a.imul(b);\n var c = t.maskn(this.shift).mul(this.minv).imaskn(this.shift).mul(this.m);\n var u = t.isub(c).iushrn(this.shift);\n var res = u;\n\n if (u.cmp(this.m) >= 0) {\n res = u.isub(this.m);\n } else if (u.cmpn(0) < 0) {\n res = u.iadd(this.m);\n }\n\n return res._forceRed(this);\n };\n\n Mont.prototype.mul = function mul (a, b) {\n if (a.isZero() || b.isZero()) return new BN(0)._forceRed(this);\n\n var t = a.mul(b);\n var c = t.maskn(this.shift).mul(this.minv).imaskn(this.shift).mul(this.m);\n var u = t.isub(c).iushrn(this.shift);\n var res = u;\n if (u.cmp(this.m) >= 0) {\n res = u.isub(this.m);\n } else if (u.cmpn(0) < 0) {\n res = u.iadd(this.m);\n }\n\n return res._forceRed(this);\n };\n\n Mont.prototype.invm = function invm (a) {\n // (AR)^-1 * R^2 = (A^-1 * R^-1) * R^2 = A^-1 * R\n var res = this.imod(a._invmp(this.m).mul(this.r2));\n return res._forceRed(this);\n };\n})(typeof module === 'undefined' || module, this);\n","'use strict'\n\nexports.byteLength = byteLength\nexports.toByteArray = toByteArray\nexports.fromByteArray = fromByteArray\n\nvar lookup = []\nvar revLookup = []\nvar Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array\n\nvar code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'\nfor (var i = 0, len = code.length; i < len; ++i) {\n lookup[i] = code[i]\n revLookup[code.charCodeAt(i)] = i\n}\n\n// Support decoding URL-safe base64 strings, as Node.js does.\n// See: https://en.wikipedia.org/wiki/Base64#URL_applications\nrevLookup['-'.charCodeAt(0)] = 62\nrevLookup['_'.charCodeAt(0)] = 63\n\nfunction getLens (b64) {\n var len = b64.length\n\n if (len % 4 > 0) {\n throw new Error('Invalid string. Length must be a multiple of 4')\n }\n\n // Trim off extra bytes after placeholder bytes are found\n // See: https://github.com/beatgammit/base64-js/issues/42\n var validLen = b64.indexOf('=')\n if (validLen === -1) validLen = len\n\n var placeHoldersLen = validLen === len\n ? 0\n : 4 - (validLen % 4)\n\n return [validLen, placeHoldersLen]\n}\n\n// base64 is 4/3 + up to two characters of the original data\nfunction byteLength (b64) {\n var lens = getLens(b64)\n var validLen = lens[0]\n var placeHoldersLen = lens[1]\n return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen\n}\n\nfunction _byteLength (b64, validLen, placeHoldersLen) {\n return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen\n}\n\nfunction toByteArray (b64) {\n var tmp\n var lens = getLens(b64)\n var validLen = lens[0]\n var placeHoldersLen = lens[1]\n\n var arr = new Arr(_byteLength(b64, validLen, placeHoldersLen))\n\n var curByte = 0\n\n // if there are placeholders, only get up to the last complete 4 chars\n var len = placeHoldersLen > 0\n ? validLen - 4\n : validLen\n\n var i\n for (i = 0; i < len; i += 4) {\n tmp =\n (revLookup[b64.charCodeAt(i)] << 18) |\n (revLookup[b64.charCodeAt(i + 1)] << 12) |\n (revLookup[b64.charCodeAt(i + 2)] << 6) |\n revLookup[b64.charCodeAt(i + 3)]\n arr[curByte++] = (tmp >> 16) & 0xFF\n arr[curByte++] = (tmp >> 8) & 0xFF\n arr[curByte++] = tmp & 0xFF\n }\n\n if (placeHoldersLen === 2) {\n tmp =\n (revLookup[b64.charCodeAt(i)] << 2) |\n (revLookup[b64.charCodeAt(i + 1)] >> 4)\n arr[curByte++] = tmp & 0xFF\n }\n\n if (placeHoldersLen === 1) {\n tmp =\n (revLookup[b64.charCodeAt(i)] << 10) |\n (revLookup[b64.charCodeAt(i + 1)] << 4) |\n (revLookup[b64.charCodeAt(i + 2)] >> 2)\n arr[curByte++] = (tmp >> 8) & 0xFF\n arr[curByte++] = tmp & 0xFF\n }\n\n return arr\n}\n\nfunction tripletToBase64 (num) {\n return lookup[num >> 18 & 0x3F] +\n lookup[num >> 12 & 0x3F] +\n lookup[num >> 6 & 0x3F] +\n lookup[num & 0x3F]\n}\n\nfunction encodeChunk (uint8, start, end) {\n var tmp\n var output = []\n for (var i = start; i < end; i += 3) {\n tmp =\n ((uint8[i] << 16) & 0xFF0000) +\n ((uint8[i + 1] << 8) & 0xFF00) +\n (uint8[i + 2] & 0xFF)\n output.push(tripletToBase64(tmp))\n }\n return output.join('')\n}\n\nfunction fromByteArray (uint8) {\n var tmp\n var len = uint8.length\n var extraBytes = len % 3 // if we have 1 byte left, pad 2 bytes\n var parts = []\n var maxChunkLength = 16383 // must be multiple of 3\n\n // go through the array every three bytes, we'll deal with trailing stuff later\n for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) {\n parts.push(encodeChunk(uint8, i, (i + maxChunkLength) > len2 ? len2 : (i + maxChunkLength)))\n }\n\n // pad the end with zeros, but make sure to not forget the extra bytes\n if (extraBytes === 1) {\n tmp = uint8[len - 1]\n parts.push(\n lookup[tmp >> 2] +\n lookup[(tmp << 4) & 0x3F] +\n '=='\n )\n } else if (extraBytes === 2) {\n tmp = (uint8[len - 2] << 8) + uint8[len - 1]\n parts.push(\n lookup[tmp >> 10] +\n lookup[(tmp >> 4) & 0x3F] +\n lookup[(tmp << 2) & 0x3F] +\n '='\n )\n }\n\n return parts.join('')\n}\n","(function (module, exports) {\n 'use strict';\n\n // Utils\n function assert (val, msg) {\n if (!val) throw new Error(msg || 'Assertion failed');\n }\n\n // Could use `inherits` module, but don't want to move from single file\n // architecture yet.\n function inherits (ctor, superCtor) {\n ctor.super_ = superCtor;\n var TempCtor = function () {};\n TempCtor.prototype = superCtor.prototype;\n ctor.prototype = new TempCtor();\n ctor.prototype.constructor = ctor;\n }\n\n // BN\n\n function BN (number, base, endian) {\n if (BN.isBN(number)) {\n return number;\n }\n\n this.negative = 0;\n this.words = null;\n this.length = 0;\n\n // Reduction context\n this.red = null;\n\n if (number !== null) {\n if (base === 'le' || base === 'be') {\n endian = base;\n base = 10;\n }\n\n this._init(number || 0, base || 10, endian || 'be');\n }\n }\n if (typeof module === 'object') {\n module.exports = BN;\n } else {\n exports.BN = BN;\n }\n\n BN.BN = BN;\n BN.wordSize = 26;\n\n var Buffer;\n try {\n if (typeof window !== 'undefined' && typeof window.Buffer !== 'undefined') {\n Buffer = window.Buffer;\n } else {\n Buffer = require('buffer').Buffer;\n }\n } catch (e) {\n }\n\n BN.isBN = function isBN (num) {\n if (num instanceof BN) {\n return true;\n }\n\n return num !== null && typeof num === 'object' &&\n num.constructor.wordSize === BN.wordSize && Array.isArray(num.words);\n };\n\n BN.max = function max (left, right) {\n if (left.cmp(right) > 0) return left;\n return right;\n };\n\n BN.min = function min (left, right) {\n if (left.cmp(right) < 0) return left;\n return right;\n };\n\n BN.prototype._init = function init (number, base, endian) {\n if (typeof number === 'number') {\n return this._initNumber(number, base, endian);\n }\n\n if (typeof number === 'object') {\n return this._initArray(number, base, endian);\n }\n\n if (base === 'hex') {\n base = 16;\n }\n assert(base === (base | 0) && base >= 2 && base <= 36);\n\n number = number.toString().replace(/\\s+/g, '');\n var start = 0;\n if (number[0] === '-') {\n start++;\n this.negative = 1;\n }\n\n if (start < number.length) {\n if (base === 16) {\n this._parseHex(number, start, endian);\n } else {\n this._parseBase(number, base, start);\n if (endian === 'le') {\n this._initArray(this.toArray(), base, endian);\n }\n }\n }\n };\n\n BN.prototype._initNumber = function _initNumber (number, base, endian) {\n if (number < 0) {\n this.negative = 1;\n number = -number;\n }\n if (number < 0x4000000) {\n this.words = [number & 0x3ffffff];\n this.length = 1;\n } else if (number < 0x10000000000000) {\n this.words = [\n number & 0x3ffffff,\n (number / 0x4000000) & 0x3ffffff\n ];\n this.length = 2;\n } else {\n assert(number < 0x20000000000000); // 2 ^ 53 (unsafe)\n this.words = [\n number & 0x3ffffff,\n (number / 0x4000000) & 0x3ffffff,\n 1\n ];\n this.length = 3;\n }\n\n if (endian !== 'le') return;\n\n // Reverse the bytes\n this._initArray(this.toArray(), base, endian);\n };\n\n BN.prototype._initArray = function _initArray (number, base, endian) {\n // Perhaps a Uint8Array\n assert(typeof number.length === 'number');\n if (number.length <= 0) {\n this.words = [0];\n this.length = 1;\n return this;\n }\n\n this.length = Math.ceil(number.length / 3);\n this.words = new Array(this.length);\n for (var i = 0; i < this.length; i++) {\n this.words[i] = 0;\n }\n\n var j, w;\n var off = 0;\n if (endian === 'be') {\n for (i = number.length - 1, j = 0; i >= 0; i -= 3) {\n w = number[i] | (number[i - 1] << 8) | (number[i - 2] << 16);\n this.words[j] |= (w << off) & 0x3ffffff;\n this.words[j + 1] = (w >>> (26 - off)) & 0x3ffffff;\n off += 24;\n if (off >= 26) {\n off -= 26;\n j++;\n }\n }\n } else if (endian === 'le') {\n for (i = 0, j = 0; i < number.length; i += 3) {\n w = number[i] | (number[i + 1] << 8) | (number[i + 2] << 16);\n this.words[j] |= (w << off) & 0x3ffffff;\n this.words[j + 1] = (w >>> (26 - off)) & 0x3ffffff;\n off += 24;\n if (off >= 26) {\n off -= 26;\n j++;\n }\n }\n }\n return this._strip();\n };\n\n function parseHex4Bits (string, index) {\n var c = string.charCodeAt(index);\n // '0' - '9'\n if (c >= 48 && c <= 57) {\n return c - 48;\n // 'A' - 'F'\n } else if (c >= 65 && c <= 70) {\n return c - 55;\n // 'a' - 'f'\n } else if (c >= 97 && c <= 102) {\n return c - 87;\n } else {\n assert(false, 'Invalid character in ' + string);\n }\n }\n\n function parseHexByte (string, lowerBound, index) {\n var r = parseHex4Bits(string, index);\n if (index - 1 >= lowerBound) {\n r |= parseHex4Bits(string, index - 1) << 4;\n }\n return r;\n }\n\n BN.prototype._parseHex = function _parseHex (number, start, endian) {\n // Create possibly bigger array to ensure that it fits the number\n this.length = Math.ceil((number.length - start) / 6);\n this.words = new Array(this.length);\n for (var i = 0; i < this.length; i++) {\n this.words[i] = 0;\n }\n\n // 24-bits chunks\n var off = 0;\n var j = 0;\n\n var w;\n if (endian === 'be') {\n for (i = number.length - 1; i >= start; i -= 2) {\n w = parseHexByte(number, start, i) << off;\n this.words[j] |= w & 0x3ffffff;\n if (off >= 18) {\n off -= 18;\n j += 1;\n this.words[j] |= w >>> 26;\n } else {\n off += 8;\n }\n }\n } else {\n var parseLength = number.length - start;\n for (i = parseLength % 2 === 0 ? start + 1 : start; i < number.length; i += 2) {\n w = parseHexByte(number, start, i) << off;\n this.words[j] |= w & 0x3ffffff;\n if (off >= 18) {\n off -= 18;\n j += 1;\n this.words[j] |= w >>> 26;\n } else {\n off += 8;\n }\n }\n }\n\n this._strip();\n };\n\n function parseBase (str, start, end, mul) {\n var r = 0;\n var b = 0;\n var len = Math.min(str.length, end);\n for (var i = start; i < len; i++) {\n var c = str.charCodeAt(i) - 48;\n\n r *= mul;\n\n // 'a'\n if (c >= 49) {\n b = c - 49 + 0xa;\n\n // 'A'\n } else if (c >= 17) {\n b = c - 17 + 0xa;\n\n // '0' - '9'\n } else {\n b = c;\n }\n assert(c >= 0 && b < mul, 'Invalid character');\n r += b;\n }\n return r;\n }\n\n BN.prototype._parseBase = function _parseBase (number, base, start) {\n // Initialize as zero\n this.words = [0];\n this.length = 1;\n\n // Find length of limb in base\n for (var limbLen = 0, limbPow = 1; limbPow <= 0x3ffffff; limbPow *= base) {\n limbLen++;\n }\n limbLen--;\n limbPow = (limbPow / base) | 0;\n\n var total = number.length - start;\n var mod = total % limbLen;\n var end = Math.min(total, total - mod) + start;\n\n var word = 0;\n for (var i = start; i < end; i += limbLen) {\n word = parseBase(number, i, i + limbLen, base);\n\n this.imuln(limbPow);\n if (this.words[0] + word < 0x4000000) {\n this.words[0] += word;\n } else {\n this._iaddn(word);\n }\n }\n\n if (mod !== 0) {\n var pow = 1;\n word = parseBase(number, i, number.length, base);\n\n for (i = 0; i < mod; i++) {\n pow *= base;\n }\n\n this.imuln(pow);\n if (this.words[0] + word < 0x4000000) {\n this.words[0] += word;\n } else {\n this._iaddn(word);\n }\n }\n\n this._strip();\n };\n\n BN.prototype.copy = function copy (dest) {\n dest.words = new Array(this.length);\n for (var i = 0; i < this.length; i++) {\n dest.words[i] = this.words[i];\n }\n dest.length = this.length;\n dest.negative = this.negative;\n dest.red = this.red;\n };\n\n function move (dest, src) {\n dest.words = src.words;\n dest.length = src.length;\n dest.negative = src.negative;\n dest.red = src.red;\n }\n\n BN.prototype._move = function _move (dest) {\n move(dest, this);\n };\n\n BN.prototype.clone = function clone () {\n var r = new BN(null);\n this.copy(r);\n return r;\n };\n\n BN.prototype._expand = function _expand (size) {\n while (this.length < size) {\n this.words[this.length++] = 0;\n }\n return this;\n };\n\n // Remove leading `0` from `this`\n BN.prototype._strip = function strip () {\n while (this.length > 1 && this.words[this.length - 1] === 0) {\n this.length--;\n }\n return this._normSign();\n };\n\n BN.prototype._normSign = function _normSign () {\n // -0 = 0\n if (this.length === 1 && this.words[0] === 0) {\n this.negative = 0;\n }\n return this;\n };\n\n // Check Symbol.for because not everywhere where Symbol defined\n // See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol#Browser_compatibility\n if (typeof Symbol !== 'undefined' && typeof Symbol.for === 'function') {\n try {\n BN.prototype[Symbol.for('nodejs.util.inspect.custom')] = inspect;\n } catch (e) {\n BN.prototype.inspect = inspect;\n }\n } else {\n BN.prototype.inspect = inspect;\n }\n\n function inspect () {\n return (this.red ? '';\n }\n\n /*\n\n var zeros = [];\n var groupSizes = [];\n var groupBases = [];\n\n var s = '';\n var i = -1;\n while (++i < BN.wordSize) {\n zeros[i] = s;\n s += '0';\n }\n groupSizes[0] = 0;\n groupSizes[1] = 0;\n groupBases[0] = 0;\n groupBases[1] = 0;\n var base = 2 - 1;\n while (++base < 36 + 1) {\n var groupSize = 0;\n var groupBase = 1;\n while (groupBase < (1 << BN.wordSize) / base) {\n groupBase *= base;\n groupSize += 1;\n }\n groupSizes[base] = groupSize;\n groupBases[base] = groupBase;\n }\n\n */\n\n var zeros = [\n '',\n '0',\n '00',\n '000',\n '0000',\n '00000',\n '000000',\n '0000000',\n '00000000',\n '000000000',\n '0000000000',\n '00000000000',\n '000000000000',\n '0000000000000',\n '00000000000000',\n '000000000000000',\n '0000000000000000',\n '00000000000000000',\n '000000000000000000',\n '0000000000000000000',\n '00000000000000000000',\n '000000000000000000000',\n '0000000000000000000000',\n '00000000000000000000000',\n '000000000000000000000000',\n '0000000000000000000000000'\n ];\n\n var groupSizes = [\n 0, 0,\n 25, 16, 12, 11, 10, 9, 8,\n 8, 7, 7, 7, 7, 6, 6,\n 6, 6, 6, 6, 6, 5, 5,\n 5, 5, 5, 5, 5, 5, 5,\n 5, 5, 5, 5, 5, 5, 5\n ];\n\n var groupBases = [\n 0, 0,\n 33554432, 43046721, 16777216, 48828125, 60466176, 40353607, 16777216,\n 43046721, 10000000, 19487171, 35831808, 62748517, 7529536, 11390625,\n 16777216, 24137569, 34012224, 47045881, 64000000, 4084101, 5153632,\n 6436343, 7962624, 9765625, 11881376, 14348907, 17210368, 20511149,\n 24300000, 28629151, 33554432, 39135393, 45435424, 52521875, 60466176\n ];\n\n BN.prototype.toString = function toString (base, padding) {\n base = base || 10;\n padding = padding | 0 || 1;\n\n var out;\n if (base === 16 || base === 'hex') {\n out = '';\n var off = 0;\n var carry = 0;\n for (var i = 0; i < this.length; i++) {\n var w = this.words[i];\n var word = (((w << off) | carry) & 0xffffff).toString(16);\n carry = (w >>> (24 - off)) & 0xffffff;\n off += 2;\n if (off >= 26) {\n off -= 26;\n i--;\n }\n if (carry !== 0 || i !== this.length - 1) {\n out = zeros[6 - word.length] + word + out;\n } else {\n out = word + out;\n }\n }\n if (carry !== 0) {\n out = carry.toString(16) + out;\n }\n while (out.length % padding !== 0) {\n out = '0' + out;\n }\n if (this.negative !== 0) {\n out = '-' + out;\n }\n return out;\n }\n\n if (base === (base | 0) && base >= 2 && base <= 36) {\n // var groupSize = Math.floor(BN.wordSize * Math.LN2 / Math.log(base));\n var groupSize = groupSizes[base];\n // var groupBase = Math.pow(base, groupSize);\n var groupBase = groupBases[base];\n out = '';\n var c = this.clone();\n c.negative = 0;\n while (!c.isZero()) {\n var r = c.modrn(groupBase).toString(base);\n c = c.idivn(groupBase);\n\n if (!c.isZero()) {\n out = zeros[groupSize - r.length] + r + out;\n } else {\n out = r + out;\n }\n }\n if (this.isZero()) {\n out = '0' + out;\n }\n while (out.length % padding !== 0) {\n out = '0' + out;\n }\n if (this.negative !== 0) {\n out = '-' + out;\n }\n return out;\n }\n\n assert(false, 'Base should be between 2 and 36');\n };\n\n BN.prototype.toNumber = function toNumber () {\n var ret = this.words[0];\n if (this.length === 2) {\n ret += this.words[1] * 0x4000000;\n } else if (this.length === 3 && this.words[2] === 0x01) {\n // NOTE: at this stage it is known that the top bit is set\n ret += 0x10000000000000 + (this.words[1] * 0x4000000);\n } else if (this.length > 2) {\n assert(false, 'Number can only safely store up to 53 bits');\n }\n return (this.negative !== 0) ? -ret : ret;\n };\n\n BN.prototype.toJSON = function toJSON () {\n return this.toString(16, 2);\n };\n\n if (Buffer) {\n BN.prototype.toBuffer = function toBuffer (endian, length) {\n return this.toArrayLike(Buffer, endian, length);\n };\n }\n\n BN.prototype.toArray = function toArray (endian, length) {\n return this.toArrayLike(Array, endian, length);\n };\n\n var allocate = function allocate (ArrayType, size) {\n if (ArrayType.allocUnsafe) {\n return ArrayType.allocUnsafe(size);\n }\n return new ArrayType(size);\n };\n\n BN.prototype.toArrayLike = function toArrayLike (ArrayType, endian, length) {\n this._strip();\n\n var byteLength = this.byteLength();\n var reqLength = length || Math.max(1, byteLength);\n assert(byteLength <= reqLength, 'byte array longer than desired length');\n assert(reqLength > 0, 'Requested array length <= 0');\n\n var res = allocate(ArrayType, reqLength);\n var postfix = endian === 'le' ? 'LE' : 'BE';\n this['_toArrayLike' + postfix](res, byteLength);\n return res;\n };\n\n BN.prototype._toArrayLikeLE = function _toArrayLikeLE (res, byteLength) {\n var position = 0;\n var carry = 0;\n\n for (var i = 0, shift = 0; i < this.length; i++) {\n var word = (this.words[i] << shift) | carry;\n\n res[position++] = word & 0xff;\n if (position < res.length) {\n res[position++] = (word >> 8) & 0xff;\n }\n if (position < res.length) {\n res[position++] = (word >> 16) & 0xff;\n }\n\n if (shift === 6) {\n if (position < res.length) {\n res[position++] = (word >> 24) & 0xff;\n }\n carry = 0;\n shift = 0;\n } else {\n carry = word >>> 24;\n shift += 2;\n }\n }\n\n if (position < res.length) {\n res[position++] = carry;\n\n while (position < res.length) {\n res[position++] = 0;\n }\n }\n };\n\n BN.prototype._toArrayLikeBE = function _toArrayLikeBE (res, byteLength) {\n var position = res.length - 1;\n var carry = 0;\n\n for (var i = 0, shift = 0; i < this.length; i++) {\n var word = (this.words[i] << shift) | carry;\n\n res[position--] = word & 0xff;\n if (position >= 0) {\n res[position--] = (word >> 8) & 0xff;\n }\n if (position >= 0) {\n res[position--] = (word >> 16) & 0xff;\n }\n\n if (shift === 6) {\n if (position >= 0) {\n res[position--] = (word >> 24) & 0xff;\n }\n carry = 0;\n shift = 0;\n } else {\n carry = word >>> 24;\n shift += 2;\n }\n }\n\n if (position >= 0) {\n res[position--] = carry;\n\n while (position >= 0) {\n res[position--] = 0;\n }\n }\n };\n\n if (Math.clz32) {\n BN.prototype._countBits = function _countBits (w) {\n return 32 - Math.clz32(w);\n };\n } else {\n BN.prototype._countBits = function _countBits (w) {\n var t = w;\n var r = 0;\n if (t >= 0x1000) {\n r += 13;\n t >>>= 13;\n }\n if (t >= 0x40) {\n r += 7;\n t >>>= 7;\n }\n if (t >= 0x8) {\n r += 4;\n t >>>= 4;\n }\n if (t >= 0x02) {\n r += 2;\n t >>>= 2;\n }\n return r + t;\n };\n }\n\n BN.prototype._zeroBits = function _zeroBits (w) {\n // Short-cut\n if (w === 0) return 26;\n\n var t = w;\n var r = 0;\n if ((t & 0x1fff) === 0) {\n r += 13;\n t >>>= 13;\n }\n if ((t & 0x7f) === 0) {\n r += 7;\n t >>>= 7;\n }\n if ((t & 0xf) === 0) {\n r += 4;\n t >>>= 4;\n }\n if ((t & 0x3) === 0) {\n r += 2;\n t >>>= 2;\n }\n if ((t & 0x1) === 0) {\n r++;\n }\n return r;\n };\n\n // Return number of used bits in a BN\n BN.prototype.bitLength = function bitLength () {\n var w = this.words[this.length - 1];\n var hi = this._countBits(w);\n return (this.length - 1) * 26 + hi;\n };\n\n function toBitArray (num) {\n var w = new Array(num.bitLength());\n\n for (var bit = 0; bit < w.length; bit++) {\n var off = (bit / 26) | 0;\n var wbit = bit % 26;\n\n w[bit] = (num.words[off] >>> wbit) & 0x01;\n }\n\n return w;\n }\n\n // Number of trailing zero bits\n BN.prototype.zeroBits = function zeroBits () {\n if (this.isZero()) return 0;\n\n var r = 0;\n for (var i = 0; i < this.length; i++) {\n var b = this._zeroBits(this.words[i]);\n r += b;\n if (b !== 26) break;\n }\n return r;\n };\n\n BN.prototype.byteLength = function byteLength () {\n return Math.ceil(this.bitLength() / 8);\n };\n\n BN.prototype.toTwos = function toTwos (width) {\n if (this.negative !== 0) {\n return this.abs().inotn(width).iaddn(1);\n }\n return this.clone();\n };\n\n BN.prototype.fromTwos = function fromTwos (width) {\n if (this.testn(width - 1)) {\n return this.notn(width).iaddn(1).ineg();\n }\n return this.clone();\n };\n\n BN.prototype.isNeg = function isNeg () {\n return this.negative !== 0;\n };\n\n // Return negative clone of `this`\n BN.prototype.neg = function neg () {\n return this.clone().ineg();\n };\n\n BN.prototype.ineg = function ineg () {\n if (!this.isZero()) {\n this.negative ^= 1;\n }\n\n return this;\n };\n\n // Or `num` with `this` in-place\n BN.prototype.iuor = function iuor (num) {\n while (this.length < num.length) {\n this.words[this.length++] = 0;\n }\n\n for (var i = 0; i < num.length; i++) {\n this.words[i] = this.words[i] | num.words[i];\n }\n\n return this._strip();\n };\n\n BN.prototype.ior = function ior (num) {\n assert((this.negative | num.negative) === 0);\n return this.iuor(num);\n };\n\n // Or `num` with `this`\n BN.prototype.or = function or (num) {\n if (this.length > num.length) return this.clone().ior(num);\n return num.clone().ior(this);\n };\n\n BN.prototype.uor = function uor (num) {\n if (this.length > num.length) return this.clone().iuor(num);\n return num.clone().iuor(this);\n };\n\n // And `num` with `this` in-place\n BN.prototype.iuand = function iuand (num) {\n // b = min-length(num, this)\n var b;\n if (this.length > num.length) {\n b = num;\n } else {\n b = this;\n }\n\n for (var i = 0; i < b.length; i++) {\n this.words[i] = this.words[i] & num.words[i];\n }\n\n this.length = b.length;\n\n return this._strip();\n };\n\n BN.prototype.iand = function iand (num) {\n assert((this.negative | num.negative) === 0);\n return this.iuand(num);\n };\n\n // And `num` with `this`\n BN.prototype.and = function and (num) {\n if (this.length > num.length) return this.clone().iand(num);\n return num.clone().iand(this);\n };\n\n BN.prototype.uand = function uand (num) {\n if (this.length > num.length) return this.clone().iuand(num);\n return num.clone().iuand(this);\n };\n\n // Xor `num` with `this` in-place\n BN.prototype.iuxor = function iuxor (num) {\n // a.length > b.length\n var a;\n var b;\n if (this.length > num.length) {\n a = this;\n b = num;\n } else {\n a = num;\n b = this;\n }\n\n for (var i = 0; i < b.length; i++) {\n this.words[i] = a.words[i] ^ b.words[i];\n }\n\n if (this !== a) {\n for (; i < a.length; i++) {\n this.words[i] = a.words[i];\n }\n }\n\n this.length = a.length;\n\n return this._strip();\n };\n\n BN.prototype.ixor = function ixor (num) {\n assert((this.negative | num.negative) === 0);\n return this.iuxor(num);\n };\n\n // Xor `num` with `this`\n BN.prototype.xor = function xor (num) {\n if (this.length > num.length) return this.clone().ixor(num);\n return num.clone().ixor(this);\n };\n\n BN.prototype.uxor = function uxor (num) {\n if (this.length > num.length) return this.clone().iuxor(num);\n return num.clone().iuxor(this);\n };\n\n // Not ``this`` with ``width`` bitwidth\n BN.prototype.inotn = function inotn (width) {\n assert(typeof width === 'number' && width >= 0);\n\n var bytesNeeded = Math.ceil(width / 26) | 0;\n var bitsLeft = width % 26;\n\n // Extend the buffer with leading zeroes\n this._expand(bytesNeeded);\n\n if (bitsLeft > 0) {\n bytesNeeded--;\n }\n\n // Handle complete words\n for (var i = 0; i < bytesNeeded; i++) {\n this.words[i] = ~this.words[i] & 0x3ffffff;\n }\n\n // Handle the residue\n if (bitsLeft > 0) {\n this.words[i] = ~this.words[i] & (0x3ffffff >> (26 - bitsLeft));\n }\n\n // And remove leading zeroes\n return this._strip();\n };\n\n BN.prototype.notn = function notn (width) {\n return this.clone().inotn(width);\n };\n\n // Set `bit` of `this`\n BN.prototype.setn = function setn (bit, val) {\n assert(typeof bit === 'number' && bit >= 0);\n\n var off = (bit / 26) | 0;\n var wbit = bit % 26;\n\n this._expand(off + 1);\n\n if (val) {\n this.words[off] = this.words[off] | (1 << wbit);\n } else {\n this.words[off] = this.words[off] & ~(1 << wbit);\n }\n\n return this._strip();\n };\n\n // Add `num` to `this` in-place\n BN.prototype.iadd = function iadd (num) {\n var r;\n\n // negative + positive\n if (this.negative !== 0 && num.negative === 0) {\n this.negative = 0;\n r = this.isub(num);\n this.negative ^= 1;\n return this._normSign();\n\n // positive + negative\n } else if (this.negative === 0 && num.negative !== 0) {\n num.negative = 0;\n r = this.isub(num);\n num.negative = 1;\n return r._normSign();\n }\n\n // a.length > b.length\n var a, b;\n if (this.length > num.length) {\n a = this;\n b = num;\n } else {\n a = num;\n b = this;\n }\n\n var carry = 0;\n for (var i = 0; i < b.length; i++) {\n r = (a.words[i] | 0) + (b.words[i] | 0) + carry;\n this.words[i] = r & 0x3ffffff;\n carry = r >>> 26;\n }\n for (; carry !== 0 && i < a.length; i++) {\n r = (a.words[i] | 0) + carry;\n this.words[i] = r & 0x3ffffff;\n carry = r >>> 26;\n }\n\n this.length = a.length;\n if (carry !== 0) {\n this.words[this.length] = carry;\n this.length++;\n // Copy the rest of the words\n } else if (a !== this) {\n for (; i < a.length; i++) {\n this.words[i] = a.words[i];\n }\n }\n\n return this;\n };\n\n // Add `num` to `this`\n BN.prototype.add = function add (num) {\n var res;\n if (num.negative !== 0 && this.negative === 0) {\n num.negative = 0;\n res = this.sub(num);\n num.negative ^= 1;\n return res;\n } else if (num.negative === 0 && this.negative !== 0) {\n this.negative = 0;\n res = num.sub(this);\n this.negative = 1;\n return res;\n }\n\n if (this.length > num.length) return this.clone().iadd(num);\n\n return num.clone().iadd(this);\n };\n\n // Subtract `num` from `this` in-place\n BN.prototype.isub = function isub (num) {\n // this - (-num) = this + num\n if (num.negative !== 0) {\n num.negative = 0;\n var r = this.iadd(num);\n num.negative = 1;\n return r._normSign();\n\n // -this - num = -(this + num)\n } else if (this.negative !== 0) {\n this.negative = 0;\n this.iadd(num);\n this.negative = 1;\n return this._normSign();\n }\n\n // At this point both numbers are positive\n var cmp = this.cmp(num);\n\n // Optimization - zeroify\n if (cmp === 0) {\n this.negative = 0;\n this.length = 1;\n this.words[0] = 0;\n return this;\n }\n\n // a > b\n var a, b;\n if (cmp > 0) {\n a = this;\n b = num;\n } else {\n a = num;\n b = this;\n }\n\n var carry = 0;\n for (var i = 0; i < b.length; i++) {\n r = (a.words[i] | 0) - (b.words[i] | 0) + carry;\n carry = r >> 26;\n this.words[i] = r & 0x3ffffff;\n }\n for (; carry !== 0 && i < a.length; i++) {\n r = (a.words[i] | 0) + carry;\n carry = r >> 26;\n this.words[i] = r & 0x3ffffff;\n }\n\n // Copy rest of the words\n if (carry === 0 && i < a.length && a !== this) {\n for (; i < a.length; i++) {\n this.words[i] = a.words[i];\n }\n }\n\n this.length = Math.max(this.length, i);\n\n if (a !== this) {\n this.negative = 1;\n }\n\n return this._strip();\n };\n\n // Subtract `num` from `this`\n BN.prototype.sub = function sub (num) {\n return this.clone().isub(num);\n };\n\n function smallMulTo (self, num, out) {\n out.negative = num.negative ^ self.negative;\n var len = (self.length + num.length) | 0;\n out.length = len;\n len = (len - 1) | 0;\n\n // Peel one iteration (compiler can't do it, because of code complexity)\n var a = self.words[0] | 0;\n var b = num.words[0] | 0;\n var r = a * b;\n\n var lo = r & 0x3ffffff;\n var carry = (r / 0x4000000) | 0;\n out.words[0] = lo;\n\n for (var k = 1; k < len; k++) {\n // Sum all words with the same `i + j = k` and accumulate `ncarry`,\n // note that ncarry could be >= 0x3ffffff\n var ncarry = carry >>> 26;\n var rword = carry & 0x3ffffff;\n var maxJ = Math.min(k, num.length - 1);\n for (var j = Math.max(0, k - self.length + 1); j <= maxJ; j++) {\n var i = (k - j) | 0;\n a = self.words[i] | 0;\n b = num.words[j] | 0;\n r = a * b + rword;\n ncarry += (r / 0x4000000) | 0;\n rword = r & 0x3ffffff;\n }\n out.words[k] = rword | 0;\n carry = ncarry | 0;\n }\n if (carry !== 0) {\n out.words[k] = carry | 0;\n } else {\n out.length--;\n }\n\n return out._strip();\n }\n\n // TODO(indutny): it may be reasonable to omit it for users who don't need\n // to work with 256-bit numbers, otherwise it gives 20% improvement for 256-bit\n // multiplication (like elliptic secp256k1).\n var comb10MulTo = function comb10MulTo (self, num, out) {\n var a = self.words;\n var b = num.words;\n var o = out.words;\n var c = 0;\n var lo;\n var mid;\n var hi;\n var a0 = a[0] | 0;\n var al0 = a0 & 0x1fff;\n var ah0 = a0 >>> 13;\n var a1 = a[1] | 0;\n var al1 = a1 & 0x1fff;\n var ah1 = a1 >>> 13;\n var a2 = a[2] | 0;\n var al2 = a2 & 0x1fff;\n var ah2 = a2 >>> 13;\n var a3 = a[3] | 0;\n var al3 = a3 & 0x1fff;\n var ah3 = a3 >>> 13;\n var a4 = a[4] | 0;\n var al4 = a4 & 0x1fff;\n var ah4 = a4 >>> 13;\n var a5 = a[5] | 0;\n var al5 = a5 & 0x1fff;\n var ah5 = a5 >>> 13;\n var a6 = a[6] | 0;\n var al6 = a6 & 0x1fff;\n var ah6 = a6 >>> 13;\n var a7 = a[7] | 0;\n var al7 = a7 & 0x1fff;\n var ah7 = a7 >>> 13;\n var a8 = a[8] | 0;\n var al8 = a8 & 0x1fff;\n var ah8 = a8 >>> 13;\n var a9 = a[9] | 0;\n var al9 = a9 & 0x1fff;\n var ah9 = a9 >>> 13;\n var b0 = b[0] | 0;\n var bl0 = b0 & 0x1fff;\n var bh0 = b0 >>> 13;\n var b1 = b[1] | 0;\n var bl1 = b1 & 0x1fff;\n var bh1 = b1 >>> 13;\n var b2 = b[2] | 0;\n var bl2 = b2 & 0x1fff;\n var bh2 = b2 >>> 13;\n var b3 = b[3] | 0;\n var bl3 = b3 & 0x1fff;\n var bh3 = b3 >>> 13;\n var b4 = b[4] | 0;\n var bl4 = b4 & 0x1fff;\n var bh4 = b4 >>> 13;\n var b5 = b[5] | 0;\n var bl5 = b5 & 0x1fff;\n var bh5 = b5 >>> 13;\n var b6 = b[6] | 0;\n var bl6 = b6 & 0x1fff;\n var bh6 = b6 >>> 13;\n var b7 = b[7] | 0;\n var bl7 = b7 & 0x1fff;\n var bh7 = b7 >>> 13;\n var b8 = b[8] | 0;\n var bl8 = b8 & 0x1fff;\n var bh8 = b8 >>> 13;\n var b9 = b[9] | 0;\n var bl9 = b9 & 0x1fff;\n var bh9 = b9 >>> 13;\n\n out.negative = self.negative ^ num.negative;\n out.length = 19;\n /* k = 0 */\n lo = Math.imul(al0, bl0);\n mid = Math.imul(al0, bh0);\n mid = (mid + Math.imul(ah0, bl0)) | 0;\n hi = Math.imul(ah0, bh0);\n var w0 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w0 >>> 26)) | 0;\n w0 &= 0x3ffffff;\n /* k = 1 */\n lo = Math.imul(al1, bl0);\n mid = Math.imul(al1, bh0);\n mid = (mid + Math.imul(ah1, bl0)) | 0;\n hi = Math.imul(ah1, bh0);\n lo = (lo + Math.imul(al0, bl1)) | 0;\n mid = (mid + Math.imul(al0, bh1)) | 0;\n mid = (mid + Math.imul(ah0, bl1)) | 0;\n hi = (hi + Math.imul(ah0, bh1)) | 0;\n var w1 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w1 >>> 26)) | 0;\n w1 &= 0x3ffffff;\n /* k = 2 */\n lo = Math.imul(al2, bl0);\n mid = Math.imul(al2, bh0);\n mid = (mid + Math.imul(ah2, bl0)) | 0;\n hi = Math.imul(ah2, bh0);\n lo = (lo + Math.imul(al1, bl1)) | 0;\n mid = (mid + Math.imul(al1, bh1)) | 0;\n mid = (mid + Math.imul(ah1, bl1)) | 0;\n hi = (hi + Math.imul(ah1, bh1)) | 0;\n lo = (lo + Math.imul(al0, bl2)) | 0;\n mid = (mid + Math.imul(al0, bh2)) | 0;\n mid = (mid + Math.imul(ah0, bl2)) | 0;\n hi = (hi + Math.imul(ah0, bh2)) | 0;\n var w2 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w2 >>> 26)) | 0;\n w2 &= 0x3ffffff;\n /* k = 3 */\n lo = Math.imul(al3, bl0);\n mid = Math.imul(al3, bh0);\n mid = (mid + Math.imul(ah3, bl0)) | 0;\n hi = Math.imul(ah3, bh0);\n lo = (lo + Math.imul(al2, bl1)) | 0;\n mid = (mid + Math.imul(al2, bh1)) | 0;\n mid = (mid + Math.imul(ah2, bl1)) | 0;\n hi = (hi + Math.imul(ah2, bh1)) | 0;\n lo = (lo + Math.imul(al1, bl2)) | 0;\n mid = (mid + Math.imul(al1, bh2)) | 0;\n mid = (mid + Math.imul(ah1, bl2)) | 0;\n hi = (hi + Math.imul(ah1, bh2)) | 0;\n lo = (lo + Math.imul(al0, bl3)) | 0;\n mid = (mid + Math.imul(al0, bh3)) | 0;\n mid = (mid + Math.imul(ah0, bl3)) | 0;\n hi = (hi + Math.imul(ah0, bh3)) | 0;\n var w3 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w3 >>> 26)) | 0;\n w3 &= 0x3ffffff;\n /* k = 4 */\n lo = Math.imul(al4, bl0);\n mid = Math.imul(al4, bh0);\n mid = (mid + Math.imul(ah4, bl0)) | 0;\n hi = Math.imul(ah4, bh0);\n lo = (lo + Math.imul(al3, bl1)) | 0;\n mid = (mid + Math.imul(al3, bh1)) | 0;\n mid = (mid + Math.imul(ah3, bl1)) | 0;\n hi = (hi + Math.imul(ah3, bh1)) | 0;\n lo = (lo + Math.imul(al2, bl2)) | 0;\n mid = (mid + Math.imul(al2, bh2)) | 0;\n mid = (mid + Math.imul(ah2, bl2)) | 0;\n hi = (hi + Math.imul(ah2, bh2)) | 0;\n lo = (lo + Math.imul(al1, bl3)) | 0;\n mid = (mid + Math.imul(al1, bh3)) | 0;\n mid = (mid + Math.imul(ah1, bl3)) | 0;\n hi = (hi + Math.imul(ah1, bh3)) | 0;\n lo = (lo + Math.imul(al0, bl4)) | 0;\n mid = (mid + Math.imul(al0, bh4)) | 0;\n mid = (mid + Math.imul(ah0, bl4)) | 0;\n hi = (hi + Math.imul(ah0, bh4)) | 0;\n var w4 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w4 >>> 26)) | 0;\n w4 &= 0x3ffffff;\n /* k = 5 */\n lo = Math.imul(al5, bl0);\n mid = Math.imul(al5, bh0);\n mid = (mid + Math.imul(ah5, bl0)) | 0;\n hi = Math.imul(ah5, bh0);\n lo = (lo + Math.imul(al4, bl1)) | 0;\n mid = (mid + Math.imul(al4, bh1)) | 0;\n mid = (mid + Math.imul(ah4, bl1)) | 0;\n hi = (hi + Math.imul(ah4, bh1)) | 0;\n lo = (lo + Math.imul(al3, bl2)) | 0;\n mid = (mid + Math.imul(al3, bh2)) | 0;\n mid = (mid + Math.imul(ah3, bl2)) | 0;\n hi = (hi + Math.imul(ah3, bh2)) | 0;\n lo = (lo + Math.imul(al2, bl3)) | 0;\n mid = (mid + Math.imul(al2, bh3)) | 0;\n mid = (mid + Math.imul(ah2, bl3)) | 0;\n hi = (hi + Math.imul(ah2, bh3)) | 0;\n lo = (lo + Math.imul(al1, bl4)) | 0;\n mid = (mid + Math.imul(al1, bh4)) | 0;\n mid = (mid + Math.imul(ah1, bl4)) | 0;\n hi = (hi + Math.imul(ah1, bh4)) | 0;\n lo = (lo + Math.imul(al0, bl5)) | 0;\n mid = (mid + Math.imul(al0, bh5)) | 0;\n mid = (mid + Math.imul(ah0, bl5)) | 0;\n hi = (hi + Math.imul(ah0, bh5)) | 0;\n var w5 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w5 >>> 26)) | 0;\n w5 &= 0x3ffffff;\n /* k = 6 */\n lo = Math.imul(al6, bl0);\n mid = Math.imul(al6, bh0);\n mid = (mid + Math.imul(ah6, bl0)) | 0;\n hi = Math.imul(ah6, bh0);\n lo = (lo + Math.imul(al5, bl1)) | 0;\n mid = (mid + Math.imul(al5, bh1)) | 0;\n mid = (mid + Math.imul(ah5, bl1)) | 0;\n hi = (hi + Math.imul(ah5, bh1)) | 0;\n lo = (lo + Math.imul(al4, bl2)) | 0;\n mid = (mid + Math.imul(al4, bh2)) | 0;\n mid = (mid + Math.imul(ah4, bl2)) | 0;\n hi = (hi + Math.imul(ah4, bh2)) | 0;\n lo = (lo + Math.imul(al3, bl3)) | 0;\n mid = (mid + Math.imul(al3, bh3)) | 0;\n mid = (mid + Math.imul(ah3, bl3)) | 0;\n hi = (hi + Math.imul(ah3, bh3)) | 0;\n lo = (lo + Math.imul(al2, bl4)) | 0;\n mid = (mid + Math.imul(al2, bh4)) | 0;\n mid = (mid + Math.imul(ah2, bl4)) | 0;\n hi = (hi + Math.imul(ah2, bh4)) | 0;\n lo = (lo + Math.imul(al1, bl5)) | 0;\n mid = (mid + Math.imul(al1, bh5)) | 0;\n mid = (mid + Math.imul(ah1, bl5)) | 0;\n hi = (hi + Math.imul(ah1, bh5)) | 0;\n lo = (lo + Math.imul(al0, bl6)) | 0;\n mid = (mid + Math.imul(al0, bh6)) | 0;\n mid = (mid + Math.imul(ah0, bl6)) | 0;\n hi = (hi + Math.imul(ah0, bh6)) | 0;\n var w6 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w6 >>> 26)) | 0;\n w6 &= 0x3ffffff;\n /* k = 7 */\n lo = Math.imul(al7, bl0);\n mid = Math.imul(al7, bh0);\n mid = (mid + Math.imul(ah7, bl0)) | 0;\n hi = Math.imul(ah7, bh0);\n lo = (lo + Math.imul(al6, bl1)) | 0;\n mid = (mid + Math.imul(al6, bh1)) | 0;\n mid = (mid + Math.imul(ah6, bl1)) | 0;\n hi = (hi + Math.imul(ah6, bh1)) | 0;\n lo = (lo + Math.imul(al5, bl2)) | 0;\n mid = (mid + Math.imul(al5, bh2)) | 0;\n mid = (mid + Math.imul(ah5, bl2)) | 0;\n hi = (hi + Math.imul(ah5, bh2)) | 0;\n lo = (lo + Math.imul(al4, bl3)) | 0;\n mid = (mid + Math.imul(al4, bh3)) | 0;\n mid = (mid + Math.imul(ah4, bl3)) | 0;\n hi = (hi + Math.imul(ah4, bh3)) | 0;\n lo = (lo + Math.imul(al3, bl4)) | 0;\n mid = (mid + Math.imul(al3, bh4)) | 0;\n mid = (mid + Math.imul(ah3, bl4)) | 0;\n hi = (hi + Math.imul(ah3, bh4)) | 0;\n lo = (lo + Math.imul(al2, bl5)) | 0;\n mid = (mid + Math.imul(al2, bh5)) | 0;\n mid = (mid + Math.imul(ah2, bl5)) | 0;\n hi = (hi + Math.imul(ah2, bh5)) | 0;\n lo = (lo + Math.imul(al1, bl6)) | 0;\n mid = (mid + Math.imul(al1, bh6)) | 0;\n mid = (mid + Math.imul(ah1, bl6)) | 0;\n hi = (hi + Math.imul(ah1, bh6)) | 0;\n lo = (lo + Math.imul(al0, bl7)) | 0;\n mid = (mid + Math.imul(al0, bh7)) | 0;\n mid = (mid + Math.imul(ah0, bl7)) | 0;\n hi = (hi + Math.imul(ah0, bh7)) | 0;\n var w7 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w7 >>> 26)) | 0;\n w7 &= 0x3ffffff;\n /* k = 8 */\n lo = Math.imul(al8, bl0);\n mid = Math.imul(al8, bh0);\n mid = (mid + Math.imul(ah8, bl0)) | 0;\n hi = Math.imul(ah8, bh0);\n lo = (lo + Math.imul(al7, bl1)) | 0;\n mid = (mid + Math.imul(al7, bh1)) | 0;\n mid = (mid + Math.imul(ah7, bl1)) | 0;\n hi = (hi + Math.imul(ah7, bh1)) | 0;\n lo = (lo + Math.imul(al6, bl2)) | 0;\n mid = (mid + Math.imul(al6, bh2)) | 0;\n mid = (mid + Math.imul(ah6, bl2)) | 0;\n hi = (hi + Math.imul(ah6, bh2)) | 0;\n lo = (lo + Math.imul(al5, bl3)) | 0;\n mid = (mid + Math.imul(al5, bh3)) | 0;\n mid = (mid + Math.imul(ah5, bl3)) | 0;\n hi = (hi + Math.imul(ah5, bh3)) | 0;\n lo = (lo + Math.imul(al4, bl4)) | 0;\n mid = (mid + Math.imul(al4, bh4)) | 0;\n mid = (mid + Math.imul(ah4, bl4)) | 0;\n hi = (hi + Math.imul(ah4, bh4)) | 0;\n lo = (lo + Math.imul(al3, bl5)) | 0;\n mid = (mid + Math.imul(al3, bh5)) | 0;\n mid = (mid + Math.imul(ah3, bl5)) | 0;\n hi = (hi + Math.imul(ah3, bh5)) | 0;\n lo = (lo + Math.imul(al2, bl6)) | 0;\n mid = (mid + Math.imul(al2, bh6)) | 0;\n mid = (mid + Math.imul(ah2, bl6)) | 0;\n hi = (hi + Math.imul(ah2, bh6)) | 0;\n lo = (lo + Math.imul(al1, bl7)) | 0;\n mid = (mid + Math.imul(al1, bh7)) | 0;\n mid = (mid + Math.imul(ah1, bl7)) | 0;\n hi = (hi + Math.imul(ah1, bh7)) | 0;\n lo = (lo + Math.imul(al0, bl8)) | 0;\n mid = (mid + Math.imul(al0, bh8)) | 0;\n mid = (mid + Math.imul(ah0, bl8)) | 0;\n hi = (hi + Math.imul(ah0, bh8)) | 0;\n var w8 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w8 >>> 26)) | 0;\n w8 &= 0x3ffffff;\n /* k = 9 */\n lo = Math.imul(al9, bl0);\n mid = Math.imul(al9, bh0);\n mid = (mid + Math.imul(ah9, bl0)) | 0;\n hi = Math.imul(ah9, bh0);\n lo = (lo + Math.imul(al8, bl1)) | 0;\n mid = (mid + Math.imul(al8, bh1)) | 0;\n mid = (mid + Math.imul(ah8, bl1)) | 0;\n hi = (hi + Math.imul(ah8, bh1)) | 0;\n lo = (lo + Math.imul(al7, bl2)) | 0;\n mid = (mid + Math.imul(al7, bh2)) | 0;\n mid = (mid + Math.imul(ah7, bl2)) | 0;\n hi = (hi + Math.imul(ah7, bh2)) | 0;\n lo = (lo + Math.imul(al6, bl3)) | 0;\n mid = (mid + Math.imul(al6, bh3)) | 0;\n mid = (mid + Math.imul(ah6, bl3)) | 0;\n hi = (hi + Math.imul(ah6, bh3)) | 0;\n lo = (lo + Math.imul(al5, bl4)) | 0;\n mid = (mid + Math.imul(al5, bh4)) | 0;\n mid = (mid + Math.imul(ah5, bl4)) | 0;\n hi = (hi + Math.imul(ah5, bh4)) | 0;\n lo = (lo + Math.imul(al4, bl5)) | 0;\n mid = (mid + Math.imul(al4, bh5)) | 0;\n mid = (mid + Math.imul(ah4, bl5)) | 0;\n hi = (hi + Math.imul(ah4, bh5)) | 0;\n lo = (lo + Math.imul(al3, bl6)) | 0;\n mid = (mid + Math.imul(al3, bh6)) | 0;\n mid = (mid + Math.imul(ah3, bl6)) | 0;\n hi = (hi + Math.imul(ah3, bh6)) | 0;\n lo = (lo + Math.imul(al2, bl7)) | 0;\n mid = (mid + Math.imul(al2, bh7)) | 0;\n mid = (mid + Math.imul(ah2, bl7)) | 0;\n hi = (hi + Math.imul(ah2, bh7)) | 0;\n lo = (lo + Math.imul(al1, bl8)) | 0;\n mid = (mid + Math.imul(al1, bh8)) | 0;\n mid = (mid + Math.imul(ah1, bl8)) | 0;\n hi = (hi + Math.imul(ah1, bh8)) | 0;\n lo = (lo + Math.imul(al0, bl9)) | 0;\n mid = (mid + Math.imul(al0, bh9)) | 0;\n mid = (mid + Math.imul(ah0, bl9)) | 0;\n hi = (hi + Math.imul(ah0, bh9)) | 0;\n var w9 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w9 >>> 26)) | 0;\n w9 &= 0x3ffffff;\n /* k = 10 */\n lo = Math.imul(al9, bl1);\n mid = Math.imul(al9, bh1);\n mid = (mid + Math.imul(ah9, bl1)) | 0;\n hi = Math.imul(ah9, bh1);\n lo = (lo + Math.imul(al8, bl2)) | 0;\n mid = (mid + Math.imul(al8, bh2)) | 0;\n mid = (mid + Math.imul(ah8, bl2)) | 0;\n hi = (hi + Math.imul(ah8, bh2)) | 0;\n lo = (lo + Math.imul(al7, bl3)) | 0;\n mid = (mid + Math.imul(al7, bh3)) | 0;\n mid = (mid + Math.imul(ah7, bl3)) | 0;\n hi = (hi + Math.imul(ah7, bh3)) | 0;\n lo = (lo + Math.imul(al6, bl4)) | 0;\n mid = (mid + Math.imul(al6, bh4)) | 0;\n mid = (mid + Math.imul(ah6, bl4)) | 0;\n hi = (hi + Math.imul(ah6, bh4)) | 0;\n lo = (lo + Math.imul(al5, bl5)) | 0;\n mid = (mid + Math.imul(al5, bh5)) | 0;\n mid = (mid + Math.imul(ah5, bl5)) | 0;\n hi = (hi + Math.imul(ah5, bh5)) | 0;\n lo = (lo + Math.imul(al4, bl6)) | 0;\n mid = (mid + Math.imul(al4, bh6)) | 0;\n mid = (mid + Math.imul(ah4, bl6)) | 0;\n hi = (hi + Math.imul(ah4, bh6)) | 0;\n lo = (lo + Math.imul(al3, bl7)) | 0;\n mid = (mid + Math.imul(al3, bh7)) | 0;\n mid = (mid + Math.imul(ah3, bl7)) | 0;\n hi = (hi + Math.imul(ah3, bh7)) | 0;\n lo = (lo + Math.imul(al2, bl8)) | 0;\n mid = (mid + Math.imul(al2, bh8)) | 0;\n mid = (mid + Math.imul(ah2, bl8)) | 0;\n hi = (hi + Math.imul(ah2, bh8)) | 0;\n lo = (lo + Math.imul(al1, bl9)) | 0;\n mid = (mid + Math.imul(al1, bh9)) | 0;\n mid = (mid + Math.imul(ah1, bl9)) | 0;\n hi = (hi + Math.imul(ah1, bh9)) | 0;\n var w10 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w10 >>> 26)) | 0;\n w10 &= 0x3ffffff;\n /* k = 11 */\n lo = Math.imul(al9, bl2);\n mid = Math.imul(al9, bh2);\n mid = (mid + Math.imul(ah9, bl2)) | 0;\n hi = Math.imul(ah9, bh2);\n lo = (lo + Math.imul(al8, bl3)) | 0;\n mid = (mid + Math.imul(al8, bh3)) | 0;\n mid = (mid + Math.imul(ah8, bl3)) | 0;\n hi = (hi + Math.imul(ah8, bh3)) | 0;\n lo = (lo + Math.imul(al7, bl4)) | 0;\n mid = (mid + Math.imul(al7, bh4)) | 0;\n mid = (mid + Math.imul(ah7, bl4)) | 0;\n hi = (hi + Math.imul(ah7, bh4)) | 0;\n lo = (lo + Math.imul(al6, bl5)) | 0;\n mid = (mid + Math.imul(al6, bh5)) | 0;\n mid = (mid + Math.imul(ah6, bl5)) | 0;\n hi = (hi + Math.imul(ah6, bh5)) | 0;\n lo = (lo + Math.imul(al5, bl6)) | 0;\n mid = (mid + Math.imul(al5, bh6)) | 0;\n mid = (mid + Math.imul(ah5, bl6)) | 0;\n hi = (hi + Math.imul(ah5, bh6)) | 0;\n lo = (lo + Math.imul(al4, bl7)) | 0;\n mid = (mid + Math.imul(al4, bh7)) | 0;\n mid = (mid + Math.imul(ah4, bl7)) | 0;\n hi = (hi + Math.imul(ah4, bh7)) | 0;\n lo = (lo + Math.imul(al3, bl8)) | 0;\n mid = (mid + Math.imul(al3, bh8)) | 0;\n mid = (mid + Math.imul(ah3, bl8)) | 0;\n hi = (hi + Math.imul(ah3, bh8)) | 0;\n lo = (lo + Math.imul(al2, bl9)) | 0;\n mid = (mid + Math.imul(al2, bh9)) | 0;\n mid = (mid + Math.imul(ah2, bl9)) | 0;\n hi = (hi + Math.imul(ah2, bh9)) | 0;\n var w11 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w11 >>> 26)) | 0;\n w11 &= 0x3ffffff;\n /* k = 12 */\n lo = Math.imul(al9, bl3);\n mid = Math.imul(al9, bh3);\n mid = (mid + Math.imul(ah9, bl3)) | 0;\n hi = Math.imul(ah9, bh3);\n lo = (lo + Math.imul(al8, bl4)) | 0;\n mid = (mid + Math.imul(al8, bh4)) | 0;\n mid = (mid + Math.imul(ah8, bl4)) | 0;\n hi = (hi + Math.imul(ah8, bh4)) | 0;\n lo = (lo + Math.imul(al7, bl5)) | 0;\n mid = (mid + Math.imul(al7, bh5)) | 0;\n mid = (mid + Math.imul(ah7, bl5)) | 0;\n hi = (hi + Math.imul(ah7, bh5)) | 0;\n lo = (lo + Math.imul(al6, bl6)) | 0;\n mid = (mid + Math.imul(al6, bh6)) | 0;\n mid = (mid + Math.imul(ah6, bl6)) | 0;\n hi = (hi + Math.imul(ah6, bh6)) | 0;\n lo = (lo + Math.imul(al5, bl7)) | 0;\n mid = (mid + Math.imul(al5, bh7)) | 0;\n mid = (mid + Math.imul(ah5, bl7)) | 0;\n hi = (hi + Math.imul(ah5, bh7)) | 0;\n lo = (lo + Math.imul(al4, bl8)) | 0;\n mid = (mid + Math.imul(al4, bh8)) | 0;\n mid = (mid + Math.imul(ah4, bl8)) | 0;\n hi = (hi + Math.imul(ah4, bh8)) | 0;\n lo = (lo + Math.imul(al3, bl9)) | 0;\n mid = (mid + Math.imul(al3, bh9)) | 0;\n mid = (mid + Math.imul(ah3, bl9)) | 0;\n hi = (hi + Math.imul(ah3, bh9)) | 0;\n var w12 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w12 >>> 26)) | 0;\n w12 &= 0x3ffffff;\n /* k = 13 */\n lo = Math.imul(al9, bl4);\n mid = Math.imul(al9, bh4);\n mid = (mid + Math.imul(ah9, bl4)) | 0;\n hi = Math.imul(ah9, bh4);\n lo = (lo + Math.imul(al8, bl5)) | 0;\n mid = (mid + Math.imul(al8, bh5)) | 0;\n mid = (mid + Math.imul(ah8, bl5)) | 0;\n hi = (hi + Math.imul(ah8, bh5)) | 0;\n lo = (lo + Math.imul(al7, bl6)) | 0;\n mid = (mid + Math.imul(al7, bh6)) | 0;\n mid = (mid + Math.imul(ah7, bl6)) | 0;\n hi = (hi + Math.imul(ah7, bh6)) | 0;\n lo = (lo + Math.imul(al6, bl7)) | 0;\n mid = (mid + Math.imul(al6, bh7)) | 0;\n mid = (mid + Math.imul(ah6, bl7)) | 0;\n hi = (hi + Math.imul(ah6, bh7)) | 0;\n lo = (lo + Math.imul(al5, bl8)) | 0;\n mid = (mid + Math.imul(al5, bh8)) | 0;\n mid = (mid + Math.imul(ah5, bl8)) | 0;\n hi = (hi + Math.imul(ah5, bh8)) | 0;\n lo = (lo + Math.imul(al4, bl9)) | 0;\n mid = (mid + Math.imul(al4, bh9)) | 0;\n mid = (mid + Math.imul(ah4, bl9)) | 0;\n hi = (hi + Math.imul(ah4, bh9)) | 0;\n var w13 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w13 >>> 26)) | 0;\n w13 &= 0x3ffffff;\n /* k = 14 */\n lo = Math.imul(al9, bl5);\n mid = Math.imul(al9, bh5);\n mid = (mid + Math.imul(ah9, bl5)) | 0;\n hi = Math.imul(ah9, bh5);\n lo = (lo + Math.imul(al8, bl6)) | 0;\n mid = (mid + Math.imul(al8, bh6)) | 0;\n mid = (mid + Math.imul(ah8, bl6)) | 0;\n hi = (hi + Math.imul(ah8, bh6)) | 0;\n lo = (lo + Math.imul(al7, bl7)) | 0;\n mid = (mid + Math.imul(al7, bh7)) | 0;\n mid = (mid + Math.imul(ah7, bl7)) | 0;\n hi = (hi + Math.imul(ah7, bh7)) | 0;\n lo = (lo + Math.imul(al6, bl8)) | 0;\n mid = (mid + Math.imul(al6, bh8)) | 0;\n mid = (mid + Math.imul(ah6, bl8)) | 0;\n hi = (hi + Math.imul(ah6, bh8)) | 0;\n lo = (lo + Math.imul(al5, bl9)) | 0;\n mid = (mid + Math.imul(al5, bh9)) | 0;\n mid = (mid + Math.imul(ah5, bl9)) | 0;\n hi = (hi + Math.imul(ah5, bh9)) | 0;\n var w14 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w14 >>> 26)) | 0;\n w14 &= 0x3ffffff;\n /* k = 15 */\n lo = Math.imul(al9, bl6);\n mid = Math.imul(al9, bh6);\n mid = (mid + Math.imul(ah9, bl6)) | 0;\n hi = Math.imul(ah9, bh6);\n lo = (lo + Math.imul(al8, bl7)) | 0;\n mid = (mid + Math.imul(al8, bh7)) | 0;\n mid = (mid + Math.imul(ah8, bl7)) | 0;\n hi = (hi + Math.imul(ah8, bh7)) | 0;\n lo = (lo + Math.imul(al7, bl8)) | 0;\n mid = (mid + Math.imul(al7, bh8)) | 0;\n mid = (mid + Math.imul(ah7, bl8)) | 0;\n hi = (hi + Math.imul(ah7, bh8)) | 0;\n lo = (lo + Math.imul(al6, bl9)) | 0;\n mid = (mid + Math.imul(al6, bh9)) | 0;\n mid = (mid + Math.imul(ah6, bl9)) | 0;\n hi = (hi + Math.imul(ah6, bh9)) | 0;\n var w15 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w15 >>> 26)) | 0;\n w15 &= 0x3ffffff;\n /* k = 16 */\n lo = Math.imul(al9, bl7);\n mid = Math.imul(al9, bh7);\n mid = (mid + Math.imul(ah9, bl7)) | 0;\n hi = Math.imul(ah9, bh7);\n lo = (lo + Math.imul(al8, bl8)) | 0;\n mid = (mid + Math.imul(al8, bh8)) | 0;\n mid = (mid + Math.imul(ah8, bl8)) | 0;\n hi = (hi + Math.imul(ah8, bh8)) | 0;\n lo = (lo + Math.imul(al7, bl9)) | 0;\n mid = (mid + Math.imul(al7, bh9)) | 0;\n mid = (mid + Math.imul(ah7, bl9)) | 0;\n hi = (hi + Math.imul(ah7, bh9)) | 0;\n var w16 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w16 >>> 26)) | 0;\n w16 &= 0x3ffffff;\n /* k = 17 */\n lo = Math.imul(al9, bl8);\n mid = Math.imul(al9, bh8);\n mid = (mid + Math.imul(ah9, bl8)) | 0;\n hi = Math.imul(ah9, bh8);\n lo = (lo + Math.imul(al8, bl9)) | 0;\n mid = (mid + Math.imul(al8, bh9)) | 0;\n mid = (mid + Math.imul(ah8, bl9)) | 0;\n hi = (hi + Math.imul(ah8, bh9)) | 0;\n var w17 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w17 >>> 26)) | 0;\n w17 &= 0x3ffffff;\n /* k = 18 */\n lo = Math.imul(al9, bl9);\n mid = Math.imul(al9, bh9);\n mid = (mid + Math.imul(ah9, bl9)) | 0;\n hi = Math.imul(ah9, bh9);\n var w18 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w18 >>> 26)) | 0;\n w18 &= 0x3ffffff;\n o[0] = w0;\n o[1] = w1;\n o[2] = w2;\n o[3] = w3;\n o[4] = w4;\n o[5] = w5;\n o[6] = w6;\n o[7] = w7;\n o[8] = w8;\n o[9] = w9;\n o[10] = w10;\n o[11] = w11;\n o[12] = w12;\n o[13] = w13;\n o[14] = w14;\n o[15] = w15;\n o[16] = w16;\n o[17] = w17;\n o[18] = w18;\n if (c !== 0) {\n o[19] = c;\n out.length++;\n }\n return out;\n };\n\n // Polyfill comb\n if (!Math.imul) {\n comb10MulTo = smallMulTo;\n }\n\n function bigMulTo (self, num, out) {\n out.negative = num.negative ^ self.negative;\n out.length = self.length + num.length;\n\n var carry = 0;\n var hncarry = 0;\n for (var k = 0; k < out.length - 1; k++) {\n // Sum all words with the same `i + j = k` and accumulate `ncarry`,\n // note that ncarry could be >= 0x3ffffff\n var ncarry = hncarry;\n hncarry = 0;\n var rword = carry & 0x3ffffff;\n var maxJ = Math.min(k, num.length - 1);\n for (var j = Math.max(0, k - self.length + 1); j <= maxJ; j++) {\n var i = k - j;\n var a = self.words[i] | 0;\n var b = num.words[j] | 0;\n var r = a * b;\n\n var lo = r & 0x3ffffff;\n ncarry = (ncarry + ((r / 0x4000000) | 0)) | 0;\n lo = (lo + rword) | 0;\n rword = lo & 0x3ffffff;\n ncarry = (ncarry + (lo >>> 26)) | 0;\n\n hncarry += ncarry >>> 26;\n ncarry &= 0x3ffffff;\n }\n out.words[k] = rword;\n carry = ncarry;\n ncarry = hncarry;\n }\n if (carry !== 0) {\n out.words[k] = carry;\n } else {\n out.length--;\n }\n\n return out._strip();\n }\n\n function jumboMulTo (self, num, out) {\n // Temporary disable, see https://github.com/indutny/bn.js/issues/211\n // var fftm = new FFTM();\n // return fftm.mulp(self, num, out);\n return bigMulTo(self, num, out);\n }\n\n BN.prototype.mulTo = function mulTo (num, out) {\n var res;\n var len = this.length + num.length;\n if (this.length === 10 && num.length === 10) {\n res = comb10MulTo(this, num, out);\n } else if (len < 63) {\n res = smallMulTo(this, num, out);\n } else if (len < 1024) {\n res = bigMulTo(this, num, out);\n } else {\n res = jumboMulTo(this, num, out);\n }\n\n return res;\n };\n\n // Cooley-Tukey algorithm for FFT\n // slightly revisited to rely on looping instead of recursion\n\n function FFTM (x, y) {\n this.x = x;\n this.y = y;\n }\n\n FFTM.prototype.makeRBT = function makeRBT (N) {\n var t = new Array(N);\n var l = BN.prototype._countBits(N) - 1;\n for (var i = 0; i < N; i++) {\n t[i] = this.revBin(i, l, N);\n }\n\n return t;\n };\n\n // Returns binary-reversed representation of `x`\n FFTM.prototype.revBin = function revBin (x, l, N) {\n if (x === 0 || x === N - 1) return x;\n\n var rb = 0;\n for (var i = 0; i < l; i++) {\n rb |= (x & 1) << (l - i - 1);\n x >>= 1;\n }\n\n return rb;\n };\n\n // Performs \"tweedling\" phase, therefore 'emulating'\n // behaviour of the recursive algorithm\n FFTM.prototype.permute = function permute (rbt, rws, iws, rtws, itws, N) {\n for (var i = 0; i < N; i++) {\n rtws[i] = rws[rbt[i]];\n itws[i] = iws[rbt[i]];\n }\n };\n\n FFTM.prototype.transform = function transform (rws, iws, rtws, itws, N, rbt) {\n this.permute(rbt, rws, iws, rtws, itws, N);\n\n for (var s = 1; s < N; s <<= 1) {\n var l = s << 1;\n\n var rtwdf = Math.cos(2 * Math.PI / l);\n var itwdf = Math.sin(2 * Math.PI / l);\n\n for (var p = 0; p < N; p += l) {\n var rtwdf_ = rtwdf;\n var itwdf_ = itwdf;\n\n for (var j = 0; j < s; j++) {\n var re = rtws[p + j];\n var ie = itws[p + j];\n\n var ro = rtws[p + j + s];\n var io = itws[p + j + s];\n\n var rx = rtwdf_ * ro - itwdf_ * io;\n\n io = rtwdf_ * io + itwdf_ * ro;\n ro = rx;\n\n rtws[p + j] = re + ro;\n itws[p + j] = ie + io;\n\n rtws[p + j + s] = re - ro;\n itws[p + j + s] = ie - io;\n\n /* jshint maxdepth : false */\n if (j !== l) {\n rx = rtwdf * rtwdf_ - itwdf * itwdf_;\n\n itwdf_ = rtwdf * itwdf_ + itwdf * rtwdf_;\n rtwdf_ = rx;\n }\n }\n }\n }\n };\n\n FFTM.prototype.guessLen13b = function guessLen13b (n, m) {\n var N = Math.max(m, n) | 1;\n var odd = N & 1;\n var i = 0;\n for (N = N / 2 | 0; N; N = N >>> 1) {\n i++;\n }\n\n return 1 << i + 1 + odd;\n };\n\n FFTM.prototype.conjugate = function conjugate (rws, iws, N) {\n if (N <= 1) return;\n\n for (var i = 0; i < N / 2; i++) {\n var t = rws[i];\n\n rws[i] = rws[N - i - 1];\n rws[N - i - 1] = t;\n\n t = iws[i];\n\n iws[i] = -iws[N - i - 1];\n iws[N - i - 1] = -t;\n }\n };\n\n FFTM.prototype.normalize13b = function normalize13b (ws, N) {\n var carry = 0;\n for (var i = 0; i < N / 2; i++) {\n var w = Math.round(ws[2 * i + 1] / N) * 0x2000 +\n Math.round(ws[2 * i] / N) +\n carry;\n\n ws[i] = w & 0x3ffffff;\n\n if (w < 0x4000000) {\n carry = 0;\n } else {\n carry = w / 0x4000000 | 0;\n }\n }\n\n return ws;\n };\n\n FFTM.prototype.convert13b = function convert13b (ws, len, rws, N) {\n var carry = 0;\n for (var i = 0; i < len; i++) {\n carry = carry + (ws[i] | 0);\n\n rws[2 * i] = carry & 0x1fff; carry = carry >>> 13;\n rws[2 * i + 1] = carry & 0x1fff; carry = carry >>> 13;\n }\n\n // Pad with zeroes\n for (i = 2 * len; i < N; ++i) {\n rws[i] = 0;\n }\n\n assert(carry === 0);\n assert((carry & ~0x1fff) === 0);\n };\n\n FFTM.prototype.stub = function stub (N) {\n var ph = new Array(N);\n for (var i = 0; i < N; i++) {\n ph[i] = 0;\n }\n\n return ph;\n };\n\n FFTM.prototype.mulp = function mulp (x, y, out) {\n var N = 2 * this.guessLen13b(x.length, y.length);\n\n var rbt = this.makeRBT(N);\n\n var _ = this.stub(N);\n\n var rws = new Array(N);\n var rwst = new Array(N);\n var iwst = new Array(N);\n\n var nrws = new Array(N);\n var nrwst = new Array(N);\n var niwst = new Array(N);\n\n var rmws = out.words;\n rmws.length = N;\n\n this.convert13b(x.words, x.length, rws, N);\n this.convert13b(y.words, y.length, nrws, N);\n\n this.transform(rws, _, rwst, iwst, N, rbt);\n this.transform(nrws, _, nrwst, niwst, N, rbt);\n\n for (var i = 0; i < N; i++) {\n var rx = rwst[i] * nrwst[i] - iwst[i] * niwst[i];\n iwst[i] = rwst[i] * niwst[i] + iwst[i] * nrwst[i];\n rwst[i] = rx;\n }\n\n this.conjugate(rwst, iwst, N);\n this.transform(rwst, iwst, rmws, _, N, rbt);\n this.conjugate(rmws, _, N);\n this.normalize13b(rmws, N);\n\n out.negative = x.negative ^ y.negative;\n out.length = x.length + y.length;\n return out._strip();\n };\n\n // Multiply `this` by `num`\n BN.prototype.mul = function mul (num) {\n var out = new BN(null);\n out.words = new Array(this.length + num.length);\n return this.mulTo(num, out);\n };\n\n // Multiply employing FFT\n BN.prototype.mulf = function mulf (num) {\n var out = new BN(null);\n out.words = new Array(this.length + num.length);\n return jumboMulTo(this, num, out);\n };\n\n // In-place Multiplication\n BN.prototype.imul = function imul (num) {\n return this.clone().mulTo(num, this);\n };\n\n BN.prototype.imuln = function imuln (num) {\n var isNegNum = num < 0;\n if (isNegNum) num = -num;\n\n assert(typeof num === 'number');\n assert(num < 0x4000000);\n\n // Carry\n var carry = 0;\n for (var i = 0; i < this.length; i++) {\n var w = (this.words[i] | 0) * num;\n var lo = (w & 0x3ffffff) + (carry & 0x3ffffff);\n carry >>= 26;\n carry += (w / 0x4000000) | 0;\n // NOTE: lo is 27bit maximum\n carry += lo >>> 26;\n this.words[i] = lo & 0x3ffffff;\n }\n\n if (carry !== 0) {\n this.words[i] = carry;\n this.length++;\n }\n\n return isNegNum ? this.ineg() : this;\n };\n\n BN.prototype.muln = function muln (num) {\n return this.clone().imuln(num);\n };\n\n // `this` * `this`\n BN.prototype.sqr = function sqr () {\n return this.mul(this);\n };\n\n // `this` * `this` in-place\n BN.prototype.isqr = function isqr () {\n return this.imul(this.clone());\n };\n\n // Math.pow(`this`, `num`)\n BN.prototype.pow = function pow (num) {\n var w = toBitArray(num);\n if (w.length === 0) return new BN(1);\n\n // Skip leading zeroes\n var res = this;\n for (var i = 0; i < w.length; i++, res = res.sqr()) {\n if (w[i] !== 0) break;\n }\n\n if (++i < w.length) {\n for (var q = res.sqr(); i < w.length; i++, q = q.sqr()) {\n if (w[i] === 0) continue;\n\n res = res.mul(q);\n }\n }\n\n return res;\n };\n\n // Shift-left in-place\n BN.prototype.iushln = function iushln (bits) {\n assert(typeof bits === 'number' && bits >= 0);\n var r = bits % 26;\n var s = (bits - r) / 26;\n var carryMask = (0x3ffffff >>> (26 - r)) << (26 - r);\n var i;\n\n if (r !== 0) {\n var carry = 0;\n\n for (i = 0; i < this.length; i++) {\n var newCarry = this.words[i] & carryMask;\n var c = ((this.words[i] | 0) - newCarry) << r;\n this.words[i] = c | carry;\n carry = newCarry >>> (26 - r);\n }\n\n if (carry) {\n this.words[i] = carry;\n this.length++;\n }\n }\n\n if (s !== 0) {\n for (i = this.length - 1; i >= 0; i--) {\n this.words[i + s] = this.words[i];\n }\n\n for (i = 0; i < s; i++) {\n this.words[i] = 0;\n }\n\n this.length += s;\n }\n\n return this._strip();\n };\n\n BN.prototype.ishln = function ishln (bits) {\n // TODO(indutny): implement me\n assert(this.negative === 0);\n return this.iushln(bits);\n };\n\n // Shift-right in-place\n // NOTE: `hint` is a lowest bit before trailing zeroes\n // NOTE: if `extended` is present - it will be filled with destroyed bits\n BN.prototype.iushrn = function iushrn (bits, hint, extended) {\n assert(typeof bits === 'number' && bits >= 0);\n var h;\n if (hint) {\n h = (hint - (hint % 26)) / 26;\n } else {\n h = 0;\n }\n\n var r = bits % 26;\n var s = Math.min((bits - r) / 26, this.length);\n var mask = 0x3ffffff ^ ((0x3ffffff >>> r) << r);\n var maskedWords = extended;\n\n h -= s;\n h = Math.max(0, h);\n\n // Extended mode, copy masked part\n if (maskedWords) {\n for (var i = 0; i < s; i++) {\n maskedWords.words[i] = this.words[i];\n }\n maskedWords.length = s;\n }\n\n if (s === 0) {\n // No-op, we should not move anything at all\n } else if (this.length > s) {\n this.length -= s;\n for (i = 0; i < this.length; i++) {\n this.words[i] = this.words[i + s];\n }\n } else {\n this.words[0] = 0;\n this.length = 1;\n }\n\n var carry = 0;\n for (i = this.length - 1; i >= 0 && (carry !== 0 || i >= h); i--) {\n var word = this.words[i] | 0;\n this.words[i] = (carry << (26 - r)) | (word >>> r);\n carry = word & mask;\n }\n\n // Push carried bits as a mask\n if (maskedWords && carry !== 0) {\n maskedWords.words[maskedWords.length++] = carry;\n }\n\n if (this.length === 0) {\n this.words[0] = 0;\n this.length = 1;\n }\n\n return this._strip();\n };\n\n BN.prototype.ishrn = function ishrn (bits, hint, extended) {\n // TODO(indutny): implement me\n assert(this.negative === 0);\n return this.iushrn(bits, hint, extended);\n };\n\n // Shift-left\n BN.prototype.shln = function shln (bits) {\n return this.clone().ishln(bits);\n };\n\n BN.prototype.ushln = function ushln (bits) {\n return this.clone().iushln(bits);\n };\n\n // Shift-right\n BN.prototype.shrn = function shrn (bits) {\n return this.clone().ishrn(bits);\n };\n\n BN.prototype.ushrn = function ushrn (bits) {\n return this.clone().iushrn(bits);\n };\n\n // Test if n bit is set\n BN.prototype.testn = function testn (bit) {\n assert(typeof bit === 'number' && bit >= 0);\n var r = bit % 26;\n var s = (bit - r) / 26;\n var q = 1 << r;\n\n // Fast case: bit is much higher than all existing words\n if (this.length <= s) return false;\n\n // Check bit and return\n var w = this.words[s];\n\n return !!(w & q);\n };\n\n // Return only lowers bits of number (in-place)\n BN.prototype.imaskn = function imaskn (bits) {\n assert(typeof bits === 'number' && bits >= 0);\n var r = bits % 26;\n var s = (bits - r) / 26;\n\n assert(this.negative === 0, 'imaskn works only with positive numbers');\n\n if (this.length <= s) {\n return this;\n }\n\n if (r !== 0) {\n s++;\n }\n this.length = Math.min(s, this.length);\n\n if (r !== 0) {\n var mask = 0x3ffffff ^ ((0x3ffffff >>> r) << r);\n this.words[this.length - 1] &= mask;\n }\n\n return this._strip();\n };\n\n // Return only lowers bits of number\n BN.prototype.maskn = function maskn (bits) {\n return this.clone().imaskn(bits);\n };\n\n // Add plain number `num` to `this`\n BN.prototype.iaddn = function iaddn (num) {\n assert(typeof num === 'number');\n assert(num < 0x4000000);\n if (num < 0) return this.isubn(-num);\n\n // Possible sign change\n if (this.negative !== 0) {\n if (this.length === 1 && (this.words[0] | 0) <= num) {\n this.words[0] = num - (this.words[0] | 0);\n this.negative = 0;\n return this;\n }\n\n this.negative = 0;\n this.isubn(num);\n this.negative = 1;\n return this;\n }\n\n // Add without checks\n return this._iaddn(num);\n };\n\n BN.prototype._iaddn = function _iaddn (num) {\n this.words[0] += num;\n\n // Carry\n for (var i = 0; i < this.length && this.words[i] >= 0x4000000; i++) {\n this.words[i] -= 0x4000000;\n if (i === this.length - 1) {\n this.words[i + 1] = 1;\n } else {\n this.words[i + 1]++;\n }\n }\n this.length = Math.max(this.length, i + 1);\n\n return this;\n };\n\n // Subtract plain number `num` from `this`\n BN.prototype.isubn = function isubn (num) {\n assert(typeof num === 'number');\n assert(num < 0x4000000);\n if (num < 0) return this.iaddn(-num);\n\n if (this.negative !== 0) {\n this.negative = 0;\n this.iaddn(num);\n this.negative = 1;\n return this;\n }\n\n this.words[0] -= num;\n\n if (this.length === 1 && this.words[0] < 0) {\n this.words[0] = -this.words[0];\n this.negative = 1;\n } else {\n // Carry\n for (var i = 0; i < this.length && this.words[i] < 0; i++) {\n this.words[i] += 0x4000000;\n this.words[i + 1] -= 1;\n }\n }\n\n return this._strip();\n };\n\n BN.prototype.addn = function addn (num) {\n return this.clone().iaddn(num);\n };\n\n BN.prototype.subn = function subn (num) {\n return this.clone().isubn(num);\n };\n\n BN.prototype.iabs = function iabs () {\n this.negative = 0;\n\n return this;\n };\n\n BN.prototype.abs = function abs () {\n return this.clone().iabs();\n };\n\n BN.prototype._ishlnsubmul = function _ishlnsubmul (num, mul, shift) {\n var len = num.length + shift;\n var i;\n\n this._expand(len);\n\n var w;\n var carry = 0;\n for (i = 0; i < num.length; i++) {\n w = (this.words[i + shift] | 0) + carry;\n var right = (num.words[i] | 0) * mul;\n w -= right & 0x3ffffff;\n carry = (w >> 26) - ((right / 0x4000000) | 0);\n this.words[i + shift] = w & 0x3ffffff;\n }\n for (; i < this.length - shift; i++) {\n w = (this.words[i + shift] | 0) + carry;\n carry = w >> 26;\n this.words[i + shift] = w & 0x3ffffff;\n }\n\n if (carry === 0) return this._strip();\n\n // Subtraction overflow\n assert(carry === -1);\n carry = 0;\n for (i = 0; i < this.length; i++) {\n w = -(this.words[i] | 0) + carry;\n carry = w >> 26;\n this.words[i] = w & 0x3ffffff;\n }\n this.negative = 1;\n\n return this._strip();\n };\n\n BN.prototype._wordDiv = function _wordDiv (num, mode) {\n var shift = this.length - num.length;\n\n var a = this.clone();\n var b = num;\n\n // Normalize\n var bhi = b.words[b.length - 1] | 0;\n var bhiBits = this._countBits(bhi);\n shift = 26 - bhiBits;\n if (shift !== 0) {\n b = b.ushln(shift);\n a.iushln(shift);\n bhi = b.words[b.length - 1] | 0;\n }\n\n // Initialize quotient\n var m = a.length - b.length;\n var q;\n\n if (mode !== 'mod') {\n q = new BN(null);\n q.length = m + 1;\n q.words = new Array(q.length);\n for (var i = 0; i < q.length; i++) {\n q.words[i] = 0;\n }\n }\n\n var diff = a.clone()._ishlnsubmul(b, 1, m);\n if (diff.negative === 0) {\n a = diff;\n if (q) {\n q.words[m] = 1;\n }\n }\n\n for (var j = m - 1; j >= 0; j--) {\n var qj = (a.words[b.length + j] | 0) * 0x4000000 +\n (a.words[b.length + j - 1] | 0);\n\n // NOTE: (qj / bhi) is (0x3ffffff * 0x4000000 + 0x3ffffff) / 0x2000000 max\n // (0x7ffffff)\n qj = Math.min((qj / bhi) | 0, 0x3ffffff);\n\n a._ishlnsubmul(b, qj, j);\n while (a.negative !== 0) {\n qj--;\n a.negative = 0;\n a._ishlnsubmul(b, 1, j);\n if (!a.isZero()) {\n a.negative ^= 1;\n }\n }\n if (q) {\n q.words[j] = qj;\n }\n }\n if (q) {\n q._strip();\n }\n a._strip();\n\n // Denormalize\n if (mode !== 'div' && shift !== 0) {\n a.iushrn(shift);\n }\n\n return {\n div: q || null,\n mod: a\n };\n };\n\n // NOTE: 1) `mode` can be set to `mod` to request mod only,\n // to `div` to request div only, or be absent to\n // request both div & mod\n // 2) `positive` is true if unsigned mod is requested\n BN.prototype.divmod = function divmod (num, mode, positive) {\n assert(!num.isZero());\n\n if (this.isZero()) {\n return {\n div: new BN(0),\n mod: new BN(0)\n };\n }\n\n var div, mod, res;\n if (this.negative !== 0 && num.negative === 0) {\n res = this.neg().divmod(num, mode);\n\n if (mode !== 'mod') {\n div = res.div.neg();\n }\n\n if (mode !== 'div') {\n mod = res.mod.neg();\n if (positive && mod.negative !== 0) {\n mod.iadd(num);\n }\n }\n\n return {\n div: div,\n mod: mod\n };\n }\n\n if (this.negative === 0 && num.negative !== 0) {\n res = this.divmod(num.neg(), mode);\n\n if (mode !== 'mod') {\n div = res.div.neg();\n }\n\n return {\n div: div,\n mod: res.mod\n };\n }\n\n if ((this.negative & num.negative) !== 0) {\n res = this.neg().divmod(num.neg(), mode);\n\n if (mode !== 'div') {\n mod = res.mod.neg();\n if (positive && mod.negative !== 0) {\n mod.isub(num);\n }\n }\n\n return {\n div: res.div,\n mod: mod\n };\n }\n\n // Both numbers are positive at this point\n\n // Strip both numbers to approximate shift value\n if (num.length > this.length || this.cmp(num) < 0) {\n return {\n div: new BN(0),\n mod: this\n };\n }\n\n // Very short reduction\n if (num.length === 1) {\n if (mode === 'div') {\n return {\n div: this.divn(num.words[0]),\n mod: null\n };\n }\n\n if (mode === 'mod') {\n return {\n div: null,\n mod: new BN(this.modrn(num.words[0]))\n };\n }\n\n return {\n div: this.divn(num.words[0]),\n mod: new BN(this.modrn(num.words[0]))\n };\n }\n\n return this._wordDiv(num, mode);\n };\n\n // Find `this` / `num`\n BN.prototype.div = function div (num) {\n return this.divmod(num, 'div', false).div;\n };\n\n // Find `this` % `num`\n BN.prototype.mod = function mod (num) {\n return this.divmod(num, 'mod', false).mod;\n };\n\n BN.prototype.umod = function umod (num) {\n return this.divmod(num, 'mod', true).mod;\n };\n\n // Find Round(`this` / `num`)\n BN.prototype.divRound = function divRound (num) {\n var dm = this.divmod(num);\n\n // Fast case - exact division\n if (dm.mod.isZero()) return dm.div;\n\n var mod = dm.div.negative !== 0 ? dm.mod.isub(num) : dm.mod;\n\n var half = num.ushrn(1);\n var r2 = num.andln(1);\n var cmp = mod.cmp(half);\n\n // Round down\n if (cmp < 0 || (r2 === 1 && cmp === 0)) return dm.div;\n\n // Round up\n return dm.div.negative !== 0 ? dm.div.isubn(1) : dm.div.iaddn(1);\n };\n\n BN.prototype.modrn = function modrn (num) {\n var isNegNum = num < 0;\n if (isNegNum) num = -num;\n\n assert(num <= 0x3ffffff);\n var p = (1 << 26) % num;\n\n var acc = 0;\n for (var i = this.length - 1; i >= 0; i--) {\n acc = (p * acc + (this.words[i] | 0)) % num;\n }\n\n return isNegNum ? -acc : acc;\n };\n\n // WARNING: DEPRECATED\n BN.prototype.modn = function modn (num) {\n return this.modrn(num);\n };\n\n // In-place division by number\n BN.prototype.idivn = function idivn (num) {\n var isNegNum = num < 0;\n if (isNegNum) num = -num;\n\n assert(num <= 0x3ffffff);\n\n var carry = 0;\n for (var i = this.length - 1; i >= 0; i--) {\n var w = (this.words[i] | 0) + carry * 0x4000000;\n this.words[i] = (w / num) | 0;\n carry = w % num;\n }\n\n this._strip();\n return isNegNum ? this.ineg() : this;\n };\n\n BN.prototype.divn = function divn (num) {\n return this.clone().idivn(num);\n };\n\n BN.prototype.egcd = function egcd (p) {\n assert(p.negative === 0);\n assert(!p.isZero());\n\n var x = this;\n var y = p.clone();\n\n if (x.negative !== 0) {\n x = x.umod(p);\n } else {\n x = x.clone();\n }\n\n // A * x + B * y = x\n var A = new BN(1);\n var B = new BN(0);\n\n // C * x + D * y = y\n var C = new BN(0);\n var D = new BN(1);\n\n var g = 0;\n\n while (x.isEven() && y.isEven()) {\n x.iushrn(1);\n y.iushrn(1);\n ++g;\n }\n\n var yp = y.clone();\n var xp = x.clone();\n\n while (!x.isZero()) {\n for (var i = 0, im = 1; (x.words[0] & im) === 0 && i < 26; ++i, im <<= 1);\n if (i > 0) {\n x.iushrn(i);\n while (i-- > 0) {\n if (A.isOdd() || B.isOdd()) {\n A.iadd(yp);\n B.isub(xp);\n }\n\n A.iushrn(1);\n B.iushrn(1);\n }\n }\n\n for (var j = 0, jm = 1; (y.words[0] & jm) === 0 && j < 26; ++j, jm <<= 1);\n if (j > 0) {\n y.iushrn(j);\n while (j-- > 0) {\n if (C.isOdd() || D.isOdd()) {\n C.iadd(yp);\n D.isub(xp);\n }\n\n C.iushrn(1);\n D.iushrn(1);\n }\n }\n\n if (x.cmp(y) >= 0) {\n x.isub(y);\n A.isub(C);\n B.isub(D);\n } else {\n y.isub(x);\n C.isub(A);\n D.isub(B);\n }\n }\n\n return {\n a: C,\n b: D,\n gcd: y.iushln(g)\n };\n };\n\n // This is reduced incarnation of the binary EEA\n // above, designated to invert members of the\n // _prime_ fields F(p) at a maximal speed\n BN.prototype._invmp = function _invmp (p) {\n assert(p.negative === 0);\n assert(!p.isZero());\n\n var a = this;\n var b = p.clone();\n\n if (a.negative !== 0) {\n a = a.umod(p);\n } else {\n a = a.clone();\n }\n\n var x1 = new BN(1);\n var x2 = new BN(0);\n\n var delta = b.clone();\n\n while (a.cmpn(1) > 0 && b.cmpn(1) > 0) {\n for (var i = 0, im = 1; (a.words[0] & im) === 0 && i < 26; ++i, im <<= 1);\n if (i > 0) {\n a.iushrn(i);\n while (i-- > 0) {\n if (x1.isOdd()) {\n x1.iadd(delta);\n }\n\n x1.iushrn(1);\n }\n }\n\n for (var j = 0, jm = 1; (b.words[0] & jm) === 0 && j < 26; ++j, jm <<= 1);\n if (j > 0) {\n b.iushrn(j);\n while (j-- > 0) {\n if (x2.isOdd()) {\n x2.iadd(delta);\n }\n\n x2.iushrn(1);\n }\n }\n\n if (a.cmp(b) >= 0) {\n a.isub(b);\n x1.isub(x2);\n } else {\n b.isub(a);\n x2.isub(x1);\n }\n }\n\n var res;\n if (a.cmpn(1) === 0) {\n res = x1;\n } else {\n res = x2;\n }\n\n if (res.cmpn(0) < 0) {\n res.iadd(p);\n }\n\n return res;\n };\n\n BN.prototype.gcd = function gcd (num) {\n if (this.isZero()) return num.abs();\n if (num.isZero()) return this.abs();\n\n var a = this.clone();\n var b = num.clone();\n a.negative = 0;\n b.negative = 0;\n\n // Remove common factor of two\n for (var shift = 0; a.isEven() && b.isEven(); shift++) {\n a.iushrn(1);\n b.iushrn(1);\n }\n\n do {\n while (a.isEven()) {\n a.iushrn(1);\n }\n while (b.isEven()) {\n b.iushrn(1);\n }\n\n var r = a.cmp(b);\n if (r < 0) {\n // Swap `a` and `b` to make `a` always bigger than `b`\n var t = a;\n a = b;\n b = t;\n } else if (r === 0 || b.cmpn(1) === 0) {\n break;\n }\n\n a.isub(b);\n } while (true);\n\n return b.iushln(shift);\n };\n\n // Invert number in the field F(num)\n BN.prototype.invm = function invm (num) {\n return this.egcd(num).a.umod(num);\n };\n\n BN.prototype.isEven = function isEven () {\n return (this.words[0] & 1) === 0;\n };\n\n BN.prototype.isOdd = function isOdd () {\n return (this.words[0] & 1) === 1;\n };\n\n // And first word and num\n BN.prototype.andln = function andln (num) {\n return this.words[0] & num;\n };\n\n // Increment at the bit position in-line\n BN.prototype.bincn = function bincn (bit) {\n assert(typeof bit === 'number');\n var r = bit % 26;\n var s = (bit - r) / 26;\n var q = 1 << r;\n\n // Fast case: bit is much higher than all existing words\n if (this.length <= s) {\n this._expand(s + 1);\n this.words[s] |= q;\n return this;\n }\n\n // Add bit and propagate, if needed\n var carry = q;\n for (var i = s; carry !== 0 && i < this.length; i++) {\n var w = this.words[i] | 0;\n w += carry;\n carry = w >>> 26;\n w &= 0x3ffffff;\n this.words[i] = w;\n }\n if (carry !== 0) {\n this.words[i] = carry;\n this.length++;\n }\n return this;\n };\n\n BN.prototype.isZero = function isZero () {\n return this.length === 1 && this.words[0] === 0;\n };\n\n BN.prototype.cmpn = function cmpn (num) {\n var negative = num < 0;\n\n if (this.negative !== 0 && !negative) return -1;\n if (this.negative === 0 && negative) return 1;\n\n this._strip();\n\n var res;\n if (this.length > 1) {\n res = 1;\n } else {\n if (negative) {\n num = -num;\n }\n\n assert(num <= 0x3ffffff, 'Number is too big');\n\n var w = this.words[0] | 0;\n res = w === num ? 0 : w < num ? -1 : 1;\n }\n if (this.negative !== 0) return -res | 0;\n return res;\n };\n\n // Compare two numbers and return:\n // 1 - if `this` > `num`\n // 0 - if `this` == `num`\n // -1 - if `this` < `num`\n BN.prototype.cmp = function cmp (num) {\n if (this.negative !== 0 && num.negative === 0) return -1;\n if (this.negative === 0 && num.negative !== 0) return 1;\n\n var res = this.ucmp(num);\n if (this.negative !== 0) return -res | 0;\n return res;\n };\n\n // Unsigned comparison\n BN.prototype.ucmp = function ucmp (num) {\n // At this point both numbers have the same sign\n if (this.length > num.length) return 1;\n if (this.length < num.length) return -1;\n\n var res = 0;\n for (var i = this.length - 1; i >= 0; i--) {\n var a = this.words[i] | 0;\n var b = num.words[i] | 0;\n\n if (a === b) continue;\n if (a < b) {\n res = -1;\n } else if (a > b) {\n res = 1;\n }\n break;\n }\n return res;\n };\n\n BN.prototype.gtn = function gtn (num) {\n return this.cmpn(num) === 1;\n };\n\n BN.prototype.gt = function gt (num) {\n return this.cmp(num) === 1;\n };\n\n BN.prototype.gten = function gten (num) {\n return this.cmpn(num) >= 0;\n };\n\n BN.prototype.gte = function gte (num) {\n return this.cmp(num) >= 0;\n };\n\n BN.prototype.ltn = function ltn (num) {\n return this.cmpn(num) === -1;\n };\n\n BN.prototype.lt = function lt (num) {\n return this.cmp(num) === -1;\n };\n\n BN.prototype.lten = function lten (num) {\n return this.cmpn(num) <= 0;\n };\n\n BN.prototype.lte = function lte (num) {\n return this.cmp(num) <= 0;\n };\n\n BN.prototype.eqn = function eqn (num) {\n return this.cmpn(num) === 0;\n };\n\n BN.prototype.eq = function eq (num) {\n return this.cmp(num) === 0;\n };\n\n //\n // A reduce context, could be using montgomery or something better, depending\n // on the `m` itself.\n //\n BN.red = function red (num) {\n return new Red(num);\n };\n\n BN.prototype.toRed = function toRed (ctx) {\n assert(!this.red, 'Already a number in reduction context');\n assert(this.negative === 0, 'red works only with positives');\n return ctx.convertTo(this)._forceRed(ctx);\n };\n\n BN.prototype.fromRed = function fromRed () {\n assert(this.red, 'fromRed works only with numbers in reduction context');\n return this.red.convertFrom(this);\n };\n\n BN.prototype._forceRed = function _forceRed (ctx) {\n this.red = ctx;\n return this;\n };\n\n BN.prototype.forceRed = function forceRed (ctx) {\n assert(!this.red, 'Already a number in reduction context');\n return this._forceRed(ctx);\n };\n\n BN.prototype.redAdd = function redAdd (num) {\n assert(this.red, 'redAdd works only with red numbers');\n return this.red.add(this, num);\n };\n\n BN.prototype.redIAdd = function redIAdd (num) {\n assert(this.red, 'redIAdd works only with red numbers');\n return this.red.iadd(this, num);\n };\n\n BN.prototype.redSub = function redSub (num) {\n assert(this.red, 'redSub works only with red numbers');\n return this.red.sub(this, num);\n };\n\n BN.prototype.redISub = function redISub (num) {\n assert(this.red, 'redISub works only with red numbers');\n return this.red.isub(this, num);\n };\n\n BN.prototype.redShl = function redShl (num) {\n assert(this.red, 'redShl works only with red numbers');\n return this.red.shl(this, num);\n };\n\n BN.prototype.redMul = function redMul (num) {\n assert(this.red, 'redMul works only with red numbers');\n this.red._verify2(this, num);\n return this.red.mul(this, num);\n };\n\n BN.prototype.redIMul = function redIMul (num) {\n assert(this.red, 'redMul works only with red numbers');\n this.red._verify2(this, num);\n return this.red.imul(this, num);\n };\n\n BN.prototype.redSqr = function redSqr () {\n assert(this.red, 'redSqr works only with red numbers');\n this.red._verify1(this);\n return this.red.sqr(this);\n };\n\n BN.prototype.redISqr = function redISqr () {\n assert(this.red, 'redISqr works only with red numbers');\n this.red._verify1(this);\n return this.red.isqr(this);\n };\n\n // Square root over p\n BN.prototype.redSqrt = function redSqrt () {\n assert(this.red, 'redSqrt works only with red numbers');\n this.red._verify1(this);\n return this.red.sqrt(this);\n };\n\n BN.prototype.redInvm = function redInvm () {\n assert(this.red, 'redInvm works only with red numbers');\n this.red._verify1(this);\n return this.red.invm(this);\n };\n\n // Return negative clone of `this` % `red modulo`\n BN.prototype.redNeg = function redNeg () {\n assert(this.red, 'redNeg works only with red numbers');\n this.red._verify1(this);\n return this.red.neg(this);\n };\n\n BN.prototype.redPow = function redPow (num) {\n assert(this.red && !num.red, 'redPow(normalNum)');\n this.red._verify1(this);\n return this.red.pow(this, num);\n };\n\n // Prime numbers with efficient reduction\n var primes = {\n k256: null,\n p224: null,\n p192: null,\n p25519: null\n };\n\n // Pseudo-Mersenne prime\n function MPrime (name, p) {\n // P = 2 ^ N - K\n this.name = name;\n this.p = new BN(p, 16);\n this.n = this.p.bitLength();\n this.k = new BN(1).iushln(this.n).isub(this.p);\n\n this.tmp = this._tmp();\n }\n\n MPrime.prototype._tmp = function _tmp () {\n var tmp = new BN(null);\n tmp.words = new Array(Math.ceil(this.n / 13));\n return tmp;\n };\n\n MPrime.prototype.ireduce = function ireduce (num) {\n // Assumes that `num` is less than `P^2`\n // num = HI * (2 ^ N - K) + HI * K + LO = HI * K + LO (mod P)\n var r = num;\n var rlen;\n\n do {\n this.split(r, this.tmp);\n r = this.imulK(r);\n r = r.iadd(this.tmp);\n rlen = r.bitLength();\n } while (rlen > this.n);\n\n var cmp = rlen < this.n ? -1 : r.ucmp(this.p);\n if (cmp === 0) {\n r.words[0] = 0;\n r.length = 1;\n } else if (cmp > 0) {\n r.isub(this.p);\n } else {\n if (r.strip !== undefined) {\n // r is a BN v4 instance\n r.strip();\n } else {\n // r is a BN v5 instance\n r._strip();\n }\n }\n\n return r;\n };\n\n MPrime.prototype.split = function split (input, out) {\n input.iushrn(this.n, 0, out);\n };\n\n MPrime.prototype.imulK = function imulK (num) {\n return num.imul(this.k);\n };\n\n function K256 () {\n MPrime.call(\n this,\n 'k256',\n 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff fffffffe fffffc2f');\n }\n inherits(K256, MPrime);\n\n K256.prototype.split = function split (input, output) {\n // 256 = 9 * 26 + 22\n var mask = 0x3fffff;\n\n var outLen = Math.min(input.length, 9);\n for (var i = 0; i < outLen; i++) {\n output.words[i] = input.words[i];\n }\n output.length = outLen;\n\n if (input.length <= 9) {\n input.words[0] = 0;\n input.length = 1;\n return;\n }\n\n // Shift by 9 limbs\n var prev = input.words[9];\n output.words[output.length++] = prev & mask;\n\n for (i = 10; i < input.length; i++) {\n var next = input.words[i] | 0;\n input.words[i - 10] = ((next & mask) << 4) | (prev >>> 22);\n prev = next;\n }\n prev >>>= 22;\n input.words[i - 10] = prev;\n if (prev === 0 && input.length > 10) {\n input.length -= 10;\n } else {\n input.length -= 9;\n }\n };\n\n K256.prototype.imulK = function imulK (num) {\n // K = 0x1000003d1 = [ 0x40, 0x3d1 ]\n num.words[num.length] = 0;\n num.words[num.length + 1] = 0;\n num.length += 2;\n\n // bounded at: 0x40 * 0x3ffffff + 0x3d0 = 0x100000390\n var lo = 0;\n for (var i = 0; i < num.length; i++) {\n var w = num.words[i] | 0;\n lo += w * 0x3d1;\n num.words[i] = lo & 0x3ffffff;\n lo = w * 0x40 + ((lo / 0x4000000) | 0);\n }\n\n // Fast length reduction\n if (num.words[num.length - 1] === 0) {\n num.length--;\n if (num.words[num.length - 1] === 0) {\n num.length--;\n }\n }\n return num;\n };\n\n function P224 () {\n MPrime.call(\n this,\n 'p224',\n 'ffffffff ffffffff ffffffff ffffffff 00000000 00000000 00000001');\n }\n inherits(P224, MPrime);\n\n function P192 () {\n MPrime.call(\n this,\n 'p192',\n 'ffffffff ffffffff ffffffff fffffffe ffffffff ffffffff');\n }\n inherits(P192, MPrime);\n\n function P25519 () {\n // 2 ^ 255 - 19\n MPrime.call(\n this,\n '25519',\n '7fffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffed');\n }\n inherits(P25519, MPrime);\n\n P25519.prototype.imulK = function imulK (num) {\n // K = 0x13\n var carry = 0;\n for (var i = 0; i < num.length; i++) {\n var hi = (num.words[i] | 0) * 0x13 + carry;\n var lo = hi & 0x3ffffff;\n hi >>>= 26;\n\n num.words[i] = lo;\n carry = hi;\n }\n if (carry !== 0) {\n num.words[num.length++] = carry;\n }\n return num;\n };\n\n // Exported mostly for testing purposes, use plain name instead\n BN._prime = function prime (name) {\n // Cached version of prime\n if (primes[name]) return primes[name];\n\n var prime;\n if (name === 'k256') {\n prime = new K256();\n } else if (name === 'p224') {\n prime = new P224();\n } else if (name === 'p192') {\n prime = new P192();\n } else if (name === 'p25519') {\n prime = new P25519();\n } else {\n throw new Error('Unknown prime ' + name);\n }\n primes[name] = prime;\n\n return prime;\n };\n\n //\n // Base reduction engine\n //\n function Red (m) {\n if (typeof m === 'string') {\n var prime = BN._prime(m);\n this.m = prime.p;\n this.prime = prime;\n } else {\n assert(m.gtn(1), 'modulus must be greater than 1');\n this.m = m;\n this.prime = null;\n }\n }\n\n Red.prototype._verify1 = function _verify1 (a) {\n assert(a.negative === 0, 'red works only with positives');\n assert(a.red, 'red works only with red numbers');\n };\n\n Red.prototype._verify2 = function _verify2 (a, b) {\n assert((a.negative | b.negative) === 0, 'red works only with positives');\n assert(a.red && a.red === b.red,\n 'red works only with red numbers');\n };\n\n Red.prototype.imod = function imod (a) {\n if (this.prime) return this.prime.ireduce(a)._forceRed(this);\n\n move(a, a.umod(this.m)._forceRed(this));\n return a;\n };\n\n Red.prototype.neg = function neg (a) {\n if (a.isZero()) {\n return a.clone();\n }\n\n return this.m.sub(a)._forceRed(this);\n };\n\n Red.prototype.add = function add (a, b) {\n this._verify2(a, b);\n\n var res = a.add(b);\n if (res.cmp(this.m) >= 0) {\n res.isub(this.m);\n }\n return res._forceRed(this);\n };\n\n Red.prototype.iadd = function iadd (a, b) {\n this._verify2(a, b);\n\n var res = a.iadd(b);\n if (res.cmp(this.m) >= 0) {\n res.isub(this.m);\n }\n return res;\n };\n\n Red.prototype.sub = function sub (a, b) {\n this._verify2(a, b);\n\n var res = a.sub(b);\n if (res.cmpn(0) < 0) {\n res.iadd(this.m);\n }\n return res._forceRed(this);\n };\n\n Red.prototype.isub = function isub (a, b) {\n this._verify2(a, b);\n\n var res = a.isub(b);\n if (res.cmpn(0) < 0) {\n res.iadd(this.m);\n }\n return res;\n };\n\n Red.prototype.shl = function shl (a, num) {\n this._verify1(a);\n return this.imod(a.ushln(num));\n };\n\n Red.prototype.imul = function imul (a, b) {\n this._verify2(a, b);\n return this.imod(a.imul(b));\n };\n\n Red.prototype.mul = function mul (a, b) {\n this._verify2(a, b);\n return this.imod(a.mul(b));\n };\n\n Red.prototype.isqr = function isqr (a) {\n return this.imul(a, a.clone());\n };\n\n Red.prototype.sqr = function sqr (a) {\n return this.mul(a, a);\n };\n\n Red.prototype.sqrt = function sqrt (a) {\n if (a.isZero()) return a.clone();\n\n var mod3 = this.m.andln(3);\n assert(mod3 % 2 === 1);\n\n // Fast case\n if (mod3 === 3) {\n var pow = this.m.add(new BN(1)).iushrn(2);\n return this.pow(a, pow);\n }\n\n // Tonelli-Shanks algorithm (Totally unoptimized and slow)\n //\n // Find Q and S, that Q * 2 ^ S = (P - 1)\n var q = this.m.subn(1);\n var s = 0;\n while (!q.isZero() && q.andln(1) === 0) {\n s++;\n q.iushrn(1);\n }\n assert(!q.isZero());\n\n var one = new BN(1).toRed(this);\n var nOne = one.redNeg();\n\n // Find quadratic non-residue\n // NOTE: Max is such because of generalized Riemann hypothesis.\n var lpow = this.m.subn(1).iushrn(1);\n var z = this.m.bitLength();\n z = new BN(2 * z * z).toRed(this);\n\n while (this.pow(z, lpow).cmp(nOne) !== 0) {\n z.redIAdd(nOne);\n }\n\n var c = this.pow(z, q);\n var r = this.pow(a, q.addn(1).iushrn(1));\n var t = this.pow(a, q);\n var m = s;\n while (t.cmp(one) !== 0) {\n var tmp = t;\n for (var i = 0; tmp.cmp(one) !== 0; i++) {\n tmp = tmp.redSqr();\n }\n assert(i < m);\n var b = this.pow(c, new BN(1).iushln(m - i - 1));\n\n r = r.redMul(b);\n c = b.redSqr();\n t = t.redMul(c);\n m = i;\n }\n\n return r;\n };\n\n Red.prototype.invm = function invm (a) {\n var inv = a._invmp(this.m);\n if (inv.negative !== 0) {\n inv.negative = 0;\n return this.imod(inv).redNeg();\n } else {\n return this.imod(inv);\n }\n };\n\n Red.prototype.pow = function pow (a, num) {\n if (num.isZero()) return new BN(1).toRed(this);\n if (num.cmpn(1) === 0) return a.clone();\n\n var windowSize = 4;\n var wnd = new Array(1 << windowSize);\n wnd[0] = new BN(1).toRed(this);\n wnd[1] = a;\n for (var i = 2; i < wnd.length; i++) {\n wnd[i] = this.mul(wnd[i - 1], a);\n }\n\n var res = wnd[0];\n var current = 0;\n var currentLen = 0;\n var start = num.bitLength() % 26;\n if (start === 0) {\n start = 26;\n }\n\n for (i = num.length - 1; i >= 0; i--) {\n var word = num.words[i];\n for (var j = start - 1; j >= 0; j--) {\n var bit = (word >> j) & 1;\n if (res !== wnd[0]) {\n res = this.sqr(res);\n }\n\n if (bit === 0 && current === 0) {\n currentLen = 0;\n continue;\n }\n\n current <<= 1;\n current |= bit;\n currentLen++;\n if (currentLen !== windowSize && (i !== 0 || j !== 0)) continue;\n\n res = this.mul(res, wnd[current]);\n currentLen = 0;\n current = 0;\n }\n start = 26;\n }\n\n return res;\n };\n\n Red.prototype.convertTo = function convertTo (num) {\n var r = num.umod(this.m);\n\n return r === num ? r.clone() : r;\n };\n\n Red.prototype.convertFrom = function convertFrom (num) {\n var res = num.clone();\n res.red = null;\n return res;\n };\n\n //\n // Montgomery method engine\n //\n\n BN.mont = function mont (num) {\n return new Mont(num);\n };\n\n function Mont (m) {\n Red.call(this, m);\n\n this.shift = this.m.bitLength();\n if (this.shift % 26 !== 0) {\n this.shift += 26 - (this.shift % 26);\n }\n\n this.r = new BN(1).iushln(this.shift);\n this.r2 = this.imod(this.r.sqr());\n this.rinv = this.r._invmp(this.m);\n\n this.minv = this.rinv.mul(this.r).isubn(1).div(this.m);\n this.minv = this.minv.umod(this.r);\n this.minv = this.r.sub(this.minv);\n }\n inherits(Mont, Red);\n\n Mont.prototype.convertTo = function convertTo (num) {\n return this.imod(num.ushln(this.shift));\n };\n\n Mont.prototype.convertFrom = function convertFrom (num) {\n var r = this.imod(num.mul(this.rinv));\n r.red = null;\n return r;\n };\n\n Mont.prototype.imul = function imul (a, b) {\n if (a.isZero() || b.isZero()) {\n a.words[0] = 0;\n a.length = 1;\n return a;\n }\n\n var t = a.imul(b);\n var c = t.maskn(this.shift).mul(this.minv).imaskn(this.shift).mul(this.m);\n var u = t.isub(c).iushrn(this.shift);\n var res = u;\n\n if (u.cmp(this.m) >= 0) {\n res = u.isub(this.m);\n } else if (u.cmpn(0) < 0) {\n res = u.iadd(this.m);\n }\n\n return res._forceRed(this);\n };\n\n Mont.prototype.mul = function mul (a, b) {\n if (a.isZero() || b.isZero()) return new BN(0)._forceRed(this);\n\n var t = a.mul(b);\n var c = t.maskn(this.shift).mul(this.minv).imaskn(this.shift).mul(this.m);\n var u = t.isub(c).iushrn(this.shift);\n var res = u;\n if (u.cmp(this.m) >= 0) {\n res = u.isub(this.m);\n } else if (u.cmpn(0) < 0) {\n res = u.iadd(this.m);\n }\n\n return res._forceRed(this);\n };\n\n Mont.prototype.invm = function invm (a) {\n // (AR)^-1 * R^2 = (A^-1 * R^-1) * R^2 = A^-1 * R\n var res = this.imod(a._invmp(this.m).mul(this.r2));\n return res._forceRed(this);\n };\n})(typeof module === 'undefined' || module, this);\n","var r;\n\nmodule.exports = function rand(len) {\n if (!r)\n r = new Rand(null);\n\n return r.generate(len);\n};\n\nfunction Rand(rand) {\n this.rand = rand;\n}\nmodule.exports.Rand = Rand;\n\nRand.prototype.generate = function generate(len) {\n return this._rand(len);\n};\n\n// Emulate crypto API using randy\nRand.prototype._rand = function _rand(n) {\n if (this.rand.getBytes)\n return this.rand.getBytes(n);\n\n var res = new Uint8Array(n);\n for (var i = 0; i < res.length; i++)\n res[i] = this.rand.getByte();\n return res;\n};\n\nif (typeof self === 'object') {\n if (self.crypto && self.crypto.getRandomValues) {\n // Modern browsers\n Rand.prototype._rand = function _rand(n) {\n var arr = new Uint8Array(n);\n self.crypto.getRandomValues(arr);\n return arr;\n };\n } else if (self.msCrypto && self.msCrypto.getRandomValues) {\n // IE\n Rand.prototype._rand = function _rand(n) {\n var arr = new Uint8Array(n);\n self.msCrypto.getRandomValues(arr);\n return arr;\n };\n\n // Safari's WebWorkers do not have `crypto`\n } else if (typeof window === 'object') {\n // Old junk\n Rand.prototype._rand = function() {\n throw new Error('Not implemented yet');\n };\n }\n} else {\n // Node.js or Web worker with no crypto support\n try {\n var crypto = require('crypto');\n if (typeof crypto.randomBytes !== 'function')\n throw new Error('Not supported');\n\n Rand.prototype._rand = function _rand(n) {\n return crypto.randomBytes(n);\n };\n } catch (e) {\n }\n}\n","// based on the aes implimentation in triple sec\n// https://github.com/keybase/triplesec\n// which is in turn based on the one from crypto-js\n// https://code.google.com/p/crypto-js/\n\nvar Buffer = require('safe-buffer').Buffer\n\nfunction asUInt32Array (buf) {\n if (!Buffer.isBuffer(buf)) buf = Buffer.from(buf)\n\n var len = (buf.length / 4) | 0\n var out = new Array(len)\n\n for (var i = 0; i < len; i++) {\n out[i] = buf.readUInt32BE(i * 4)\n }\n\n return out\n}\n\nfunction scrubVec (v) {\n for (var i = 0; i < v.length; v++) {\n v[i] = 0\n }\n}\n\nfunction cryptBlock (M, keySchedule, SUB_MIX, SBOX, nRounds) {\n var SUB_MIX0 = SUB_MIX[0]\n var SUB_MIX1 = SUB_MIX[1]\n var SUB_MIX2 = SUB_MIX[2]\n var SUB_MIX3 = SUB_MIX[3]\n\n var s0 = M[0] ^ keySchedule[0]\n var s1 = M[1] ^ keySchedule[1]\n var s2 = M[2] ^ keySchedule[2]\n var s3 = M[3] ^ keySchedule[3]\n var t0, t1, t2, t3\n var ksRow = 4\n\n for (var round = 1; round < nRounds; round++) {\n t0 = SUB_MIX0[s0 >>> 24] ^ SUB_MIX1[(s1 >>> 16) & 0xff] ^ SUB_MIX2[(s2 >>> 8) & 0xff] ^ SUB_MIX3[s3 & 0xff] ^ keySchedule[ksRow++]\n t1 = SUB_MIX0[s1 >>> 24] ^ SUB_MIX1[(s2 >>> 16) & 0xff] ^ SUB_MIX2[(s3 >>> 8) & 0xff] ^ SUB_MIX3[s0 & 0xff] ^ keySchedule[ksRow++]\n t2 = SUB_MIX0[s2 >>> 24] ^ SUB_MIX1[(s3 >>> 16) & 0xff] ^ SUB_MIX2[(s0 >>> 8) & 0xff] ^ SUB_MIX3[s1 & 0xff] ^ keySchedule[ksRow++]\n t3 = SUB_MIX0[s3 >>> 24] ^ SUB_MIX1[(s0 >>> 16) & 0xff] ^ SUB_MIX2[(s1 >>> 8) & 0xff] ^ SUB_MIX3[s2 & 0xff] ^ keySchedule[ksRow++]\n s0 = t0\n s1 = t1\n s2 = t2\n s3 = t3\n }\n\n t0 = ((SBOX[s0 >>> 24] << 24) | (SBOX[(s1 >>> 16) & 0xff] << 16) | (SBOX[(s2 >>> 8) & 0xff] << 8) | SBOX[s3 & 0xff]) ^ keySchedule[ksRow++]\n t1 = ((SBOX[s1 >>> 24] << 24) | (SBOX[(s2 >>> 16) & 0xff] << 16) | (SBOX[(s3 >>> 8) & 0xff] << 8) | SBOX[s0 & 0xff]) ^ keySchedule[ksRow++]\n t2 = ((SBOX[s2 >>> 24] << 24) | (SBOX[(s3 >>> 16) & 0xff] << 16) | (SBOX[(s0 >>> 8) & 0xff] << 8) | SBOX[s1 & 0xff]) ^ keySchedule[ksRow++]\n t3 = ((SBOX[s3 >>> 24] << 24) | (SBOX[(s0 >>> 16) & 0xff] << 16) | (SBOX[(s1 >>> 8) & 0xff] << 8) | SBOX[s2 & 0xff]) ^ keySchedule[ksRow++]\n t0 = t0 >>> 0\n t1 = t1 >>> 0\n t2 = t2 >>> 0\n t3 = t3 >>> 0\n\n return [t0, t1, t2, t3]\n}\n\n// AES constants\nvar RCON = [0x00, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36]\nvar G = (function () {\n // Compute double table\n var d = new Array(256)\n for (var j = 0; j < 256; j++) {\n if (j < 128) {\n d[j] = j << 1\n } else {\n d[j] = (j << 1) ^ 0x11b\n }\n }\n\n var SBOX = []\n var INV_SBOX = []\n var SUB_MIX = [[], [], [], []]\n var INV_SUB_MIX = [[], [], [], []]\n\n // Walk GF(2^8)\n var x = 0\n var xi = 0\n for (var i = 0; i < 256; ++i) {\n // Compute sbox\n var sx = xi ^ (xi << 1) ^ (xi << 2) ^ (xi << 3) ^ (xi << 4)\n sx = (sx >>> 8) ^ (sx & 0xff) ^ 0x63\n SBOX[x] = sx\n INV_SBOX[sx] = x\n\n // Compute multiplication\n var x2 = d[x]\n var x4 = d[x2]\n var x8 = d[x4]\n\n // Compute sub bytes, mix columns tables\n var t = (d[sx] * 0x101) ^ (sx * 0x1010100)\n SUB_MIX[0][x] = (t << 24) | (t >>> 8)\n SUB_MIX[1][x] = (t << 16) | (t >>> 16)\n SUB_MIX[2][x] = (t << 8) | (t >>> 24)\n SUB_MIX[3][x] = t\n\n // Compute inv sub bytes, inv mix columns tables\n t = (x8 * 0x1010101) ^ (x4 * 0x10001) ^ (x2 * 0x101) ^ (x * 0x1010100)\n INV_SUB_MIX[0][sx] = (t << 24) | (t >>> 8)\n INV_SUB_MIX[1][sx] = (t << 16) | (t >>> 16)\n INV_SUB_MIX[2][sx] = (t << 8) | (t >>> 24)\n INV_SUB_MIX[3][sx] = t\n\n if (x === 0) {\n x = xi = 1\n } else {\n x = x2 ^ d[d[d[x8 ^ x2]]]\n xi ^= d[d[xi]]\n }\n }\n\n return {\n SBOX: SBOX,\n INV_SBOX: INV_SBOX,\n SUB_MIX: SUB_MIX,\n INV_SUB_MIX: INV_SUB_MIX\n }\n})()\n\nfunction AES (key) {\n this._key = asUInt32Array(key)\n this._reset()\n}\n\nAES.blockSize = 4 * 4\nAES.keySize = 256 / 8\nAES.prototype.blockSize = AES.blockSize\nAES.prototype.keySize = AES.keySize\nAES.prototype._reset = function () {\n var keyWords = this._key\n var keySize = keyWords.length\n var nRounds = keySize + 6\n var ksRows = (nRounds + 1) * 4\n\n var keySchedule = []\n for (var k = 0; k < keySize; k++) {\n keySchedule[k] = keyWords[k]\n }\n\n for (k = keySize; k < ksRows; k++) {\n var t = keySchedule[k - 1]\n\n if (k % keySize === 0) {\n t = (t << 8) | (t >>> 24)\n t =\n (G.SBOX[t >>> 24] << 24) |\n (G.SBOX[(t >>> 16) & 0xff] << 16) |\n (G.SBOX[(t >>> 8) & 0xff] << 8) |\n (G.SBOX[t & 0xff])\n\n t ^= RCON[(k / keySize) | 0] << 24\n } else if (keySize > 6 && k % keySize === 4) {\n t =\n (G.SBOX[t >>> 24] << 24) |\n (G.SBOX[(t >>> 16) & 0xff] << 16) |\n (G.SBOX[(t >>> 8) & 0xff] << 8) |\n (G.SBOX[t & 0xff])\n }\n\n keySchedule[k] = keySchedule[k - keySize] ^ t\n }\n\n var invKeySchedule = []\n for (var ik = 0; ik < ksRows; ik++) {\n var ksR = ksRows - ik\n var tt = keySchedule[ksR - (ik % 4 ? 0 : 4)]\n\n if (ik < 4 || ksR <= 4) {\n invKeySchedule[ik] = tt\n } else {\n invKeySchedule[ik] =\n G.INV_SUB_MIX[0][G.SBOX[tt >>> 24]] ^\n G.INV_SUB_MIX[1][G.SBOX[(tt >>> 16) & 0xff]] ^\n G.INV_SUB_MIX[2][G.SBOX[(tt >>> 8) & 0xff]] ^\n G.INV_SUB_MIX[3][G.SBOX[tt & 0xff]]\n }\n }\n\n this._nRounds = nRounds\n this._keySchedule = keySchedule\n this._invKeySchedule = invKeySchedule\n}\n\nAES.prototype.encryptBlockRaw = function (M) {\n M = asUInt32Array(M)\n return cryptBlock(M, this._keySchedule, G.SUB_MIX, G.SBOX, this._nRounds)\n}\n\nAES.prototype.encryptBlock = function (M) {\n var out = this.encryptBlockRaw(M)\n var buf = Buffer.allocUnsafe(16)\n buf.writeUInt32BE(out[0], 0)\n buf.writeUInt32BE(out[1], 4)\n buf.writeUInt32BE(out[2], 8)\n buf.writeUInt32BE(out[3], 12)\n return buf\n}\n\nAES.prototype.decryptBlock = function (M) {\n M = asUInt32Array(M)\n\n // swap\n var m1 = M[1]\n M[1] = M[3]\n M[3] = m1\n\n var out = cryptBlock(M, this._invKeySchedule, G.INV_SUB_MIX, G.INV_SBOX, this._nRounds)\n var buf = Buffer.allocUnsafe(16)\n buf.writeUInt32BE(out[0], 0)\n buf.writeUInt32BE(out[3], 4)\n buf.writeUInt32BE(out[2], 8)\n buf.writeUInt32BE(out[1], 12)\n return buf\n}\n\nAES.prototype.scrub = function () {\n scrubVec(this._keySchedule)\n scrubVec(this._invKeySchedule)\n scrubVec(this._key)\n}\n\nmodule.exports.AES = AES\n","var aes = require('./aes')\nvar Buffer = require('safe-buffer').Buffer\nvar Transform = require('cipher-base')\nvar inherits = require('inherits')\nvar GHASH = require('./ghash')\nvar xor = require('buffer-xor')\nvar incr32 = require('./incr32')\n\nfunction xorTest (a, b) {\n var out = 0\n if (a.length !== b.length) out++\n\n var len = Math.min(a.length, b.length)\n for (var i = 0; i < len; ++i) {\n out += (a[i] ^ b[i])\n }\n\n return out\n}\n\nfunction calcIv (self, iv, ck) {\n if (iv.length === 12) {\n self._finID = Buffer.concat([iv, Buffer.from([0, 0, 0, 1])])\n return Buffer.concat([iv, Buffer.from([0, 0, 0, 2])])\n }\n var ghash = new GHASH(ck)\n var len = iv.length\n var toPad = len % 16\n ghash.update(iv)\n if (toPad) {\n toPad = 16 - toPad\n ghash.update(Buffer.alloc(toPad, 0))\n }\n ghash.update(Buffer.alloc(8, 0))\n var ivBits = len * 8\n var tail = Buffer.alloc(8)\n tail.writeUIntBE(ivBits, 0, 8)\n ghash.update(tail)\n self._finID = ghash.state\n var out = Buffer.from(self._finID)\n incr32(out)\n return out\n}\nfunction StreamCipher (mode, key, iv, decrypt) {\n Transform.call(this)\n\n var h = Buffer.alloc(4, 0)\n\n this._cipher = new aes.AES(key)\n var ck = this._cipher.encryptBlock(h)\n this._ghash = new GHASH(ck)\n iv = calcIv(this, iv, ck)\n\n this._prev = Buffer.from(iv)\n this._cache = Buffer.allocUnsafe(0)\n this._secCache = Buffer.allocUnsafe(0)\n this._decrypt = decrypt\n this._alen = 0\n this._len = 0\n this._mode = mode\n\n this._authTag = null\n this._called = false\n}\n\ninherits(StreamCipher, Transform)\n\nStreamCipher.prototype._update = function (chunk) {\n if (!this._called && this._alen) {\n var rump = 16 - (this._alen % 16)\n if (rump < 16) {\n rump = Buffer.alloc(rump, 0)\n this._ghash.update(rump)\n }\n }\n\n this._called = true\n var out = this._mode.encrypt(this, chunk)\n if (this._decrypt) {\n this._ghash.update(chunk)\n } else {\n this._ghash.update(out)\n }\n this._len += chunk.length\n return out\n}\n\nStreamCipher.prototype._final = function () {\n if (this._decrypt && !this._authTag) throw new Error('Unsupported state or unable to authenticate data')\n\n var tag = xor(this._ghash.final(this._alen * 8, this._len * 8), this._cipher.encryptBlock(this._finID))\n if (this._decrypt && xorTest(tag, this._authTag)) throw new Error('Unsupported state or unable to authenticate data')\n\n this._authTag = tag\n this._cipher.scrub()\n}\n\nStreamCipher.prototype.getAuthTag = function getAuthTag () {\n if (this._decrypt || !Buffer.isBuffer(this._authTag)) throw new Error('Attempting to get auth tag in unsupported state')\n\n return this._authTag\n}\n\nStreamCipher.prototype.setAuthTag = function setAuthTag (tag) {\n if (!this._decrypt) throw new Error('Attempting to set auth tag in unsupported state')\n\n this._authTag = tag\n}\n\nStreamCipher.prototype.setAAD = function setAAD (buf) {\n if (this._called) throw new Error('Attempting to set AAD in unsupported state')\n\n this._ghash.update(buf)\n this._alen += buf.length\n}\n\nmodule.exports = StreamCipher\n","var ciphers = require('./encrypter')\nvar deciphers = require('./decrypter')\nvar modes = require('./modes/list.json')\n\nfunction getCiphers () {\n return Object.keys(modes)\n}\n\nexports.createCipher = exports.Cipher = ciphers.createCipher\nexports.createCipheriv = exports.Cipheriv = ciphers.createCipheriv\nexports.createDecipher = exports.Decipher = deciphers.createDecipher\nexports.createDecipheriv = exports.Decipheriv = deciphers.createDecipheriv\nexports.listCiphers = exports.getCiphers = getCiphers\n","var AuthCipher = require('./authCipher')\nvar Buffer = require('safe-buffer').Buffer\nvar MODES = require('./modes')\nvar StreamCipher = require('./streamCipher')\nvar Transform = require('cipher-base')\nvar aes = require('./aes')\nvar ebtk = require('evp_bytestokey')\nvar inherits = require('inherits')\n\nfunction Decipher (mode, key, iv) {\n Transform.call(this)\n\n this._cache = new Splitter()\n this._last = void 0\n this._cipher = new aes.AES(key)\n this._prev = Buffer.from(iv)\n this._mode = mode\n this._autopadding = true\n}\n\ninherits(Decipher, Transform)\n\nDecipher.prototype._update = function (data) {\n this._cache.add(data)\n var chunk\n var thing\n var out = []\n while ((chunk = this._cache.get(this._autopadding))) {\n thing = this._mode.decrypt(this, chunk)\n out.push(thing)\n }\n return Buffer.concat(out)\n}\n\nDecipher.prototype._final = function () {\n var chunk = this._cache.flush()\n if (this._autopadding) {\n return unpad(this._mode.decrypt(this, chunk))\n } else if (chunk) {\n throw new Error('data not multiple of block length')\n }\n}\n\nDecipher.prototype.setAutoPadding = function (setTo) {\n this._autopadding = !!setTo\n return this\n}\n\nfunction Splitter () {\n this.cache = Buffer.allocUnsafe(0)\n}\n\nSplitter.prototype.add = function (data) {\n this.cache = Buffer.concat([this.cache, data])\n}\n\nSplitter.prototype.get = function (autoPadding) {\n var out\n if (autoPadding) {\n if (this.cache.length > 16) {\n out = this.cache.slice(0, 16)\n this.cache = this.cache.slice(16)\n return out\n }\n } else {\n if (this.cache.length >= 16) {\n out = this.cache.slice(0, 16)\n this.cache = this.cache.slice(16)\n return out\n }\n }\n\n return null\n}\n\nSplitter.prototype.flush = function () {\n if (this.cache.length) return this.cache\n}\n\nfunction unpad (last) {\n var padded = last[15]\n if (padded < 1 || padded > 16) {\n throw new Error('unable to decrypt data')\n }\n var i = -1\n while (++i < padded) {\n if (last[(i + (16 - padded))] !== padded) {\n throw new Error('unable to decrypt data')\n }\n }\n if (padded === 16) return\n\n return last.slice(0, 16 - padded)\n}\n\nfunction createDecipheriv (suite, password, iv) {\n var config = MODES[suite.toLowerCase()]\n if (!config) throw new TypeError('invalid suite type')\n\n if (typeof iv === 'string') iv = Buffer.from(iv)\n if (config.mode !== 'GCM' && iv.length !== config.iv) throw new TypeError('invalid iv length ' + iv.length)\n\n if (typeof password === 'string') password = Buffer.from(password)\n if (password.length !== config.key / 8) throw new TypeError('invalid key length ' + password.length)\n\n if (config.type === 'stream') {\n return new StreamCipher(config.module, password, iv, true)\n } else if (config.type === 'auth') {\n return new AuthCipher(config.module, password, iv, true)\n }\n\n return new Decipher(config.module, password, iv)\n}\n\nfunction createDecipher (suite, password) {\n var config = MODES[suite.toLowerCase()]\n if (!config) throw new TypeError('invalid suite type')\n\n var keys = ebtk(password, false, config.key, config.iv)\n return createDecipheriv(suite, keys.key, keys.iv)\n}\n\nexports.createDecipher = createDecipher\nexports.createDecipheriv = createDecipheriv\n","var MODES = require('./modes')\nvar AuthCipher = require('./authCipher')\nvar Buffer = require('safe-buffer').Buffer\nvar StreamCipher = require('./streamCipher')\nvar Transform = require('cipher-base')\nvar aes = require('./aes')\nvar ebtk = require('evp_bytestokey')\nvar inherits = require('inherits')\n\nfunction Cipher (mode, key, iv) {\n Transform.call(this)\n\n this._cache = new Splitter()\n this._cipher = new aes.AES(key)\n this._prev = Buffer.from(iv)\n this._mode = mode\n this._autopadding = true\n}\n\ninherits(Cipher, Transform)\n\nCipher.prototype._update = function (data) {\n this._cache.add(data)\n var chunk\n var thing\n var out = []\n\n while ((chunk = this._cache.get())) {\n thing = this._mode.encrypt(this, chunk)\n out.push(thing)\n }\n\n return Buffer.concat(out)\n}\n\nvar PADDING = Buffer.alloc(16, 0x10)\n\nCipher.prototype._final = function () {\n var chunk = this._cache.flush()\n if (this._autopadding) {\n chunk = this._mode.encrypt(this, chunk)\n this._cipher.scrub()\n return chunk\n }\n\n if (!chunk.equals(PADDING)) {\n this._cipher.scrub()\n throw new Error('data not multiple of block length')\n }\n}\n\nCipher.prototype.setAutoPadding = function (setTo) {\n this._autopadding = !!setTo\n return this\n}\n\nfunction Splitter () {\n this.cache = Buffer.allocUnsafe(0)\n}\n\nSplitter.prototype.add = function (data) {\n this.cache = Buffer.concat([this.cache, data])\n}\n\nSplitter.prototype.get = function () {\n if (this.cache.length > 15) {\n var out = this.cache.slice(0, 16)\n this.cache = this.cache.slice(16)\n return out\n }\n return null\n}\n\nSplitter.prototype.flush = function () {\n var len = 16 - this.cache.length\n var padBuff = Buffer.allocUnsafe(len)\n\n var i = -1\n while (++i < len) {\n padBuff.writeUInt8(len, i)\n }\n\n return Buffer.concat([this.cache, padBuff])\n}\n\nfunction createCipheriv (suite, password, iv) {\n var config = MODES[suite.toLowerCase()]\n if (!config) throw new TypeError('invalid suite type')\n\n if (typeof password === 'string') password = Buffer.from(password)\n if (password.length !== config.key / 8) throw new TypeError('invalid key length ' + password.length)\n\n if (typeof iv === 'string') iv = Buffer.from(iv)\n if (config.mode !== 'GCM' && iv.length !== config.iv) throw new TypeError('invalid iv length ' + iv.length)\n\n if (config.type === 'stream') {\n return new StreamCipher(config.module, password, iv)\n } else if (config.type === 'auth') {\n return new AuthCipher(config.module, password, iv)\n }\n\n return new Cipher(config.module, password, iv)\n}\n\nfunction createCipher (suite, password) {\n var config = MODES[suite.toLowerCase()]\n if (!config) throw new TypeError('invalid suite type')\n\n var keys = ebtk(password, false, config.key, config.iv)\n return createCipheriv(suite, keys.key, keys.iv)\n}\n\nexports.createCipheriv = createCipheriv\nexports.createCipher = createCipher\n","var Buffer = require('safe-buffer').Buffer\nvar ZEROES = Buffer.alloc(16, 0)\n\nfunction toArray (buf) {\n return [\n buf.readUInt32BE(0),\n buf.readUInt32BE(4),\n buf.readUInt32BE(8),\n buf.readUInt32BE(12)\n ]\n}\n\nfunction fromArray (out) {\n var buf = Buffer.allocUnsafe(16)\n buf.writeUInt32BE(out[0] >>> 0, 0)\n buf.writeUInt32BE(out[1] >>> 0, 4)\n buf.writeUInt32BE(out[2] >>> 0, 8)\n buf.writeUInt32BE(out[3] >>> 0, 12)\n return buf\n}\n\nfunction GHASH (key) {\n this.h = key\n this.state = Buffer.alloc(16, 0)\n this.cache = Buffer.allocUnsafe(0)\n}\n\n// from http://bitwiseshiftleft.github.io/sjcl/doc/symbols/src/core_gcm.js.html\n// by Juho Vähä-Herttua\nGHASH.prototype.ghash = function (block) {\n var i = -1\n while (++i < block.length) {\n this.state[i] ^= block[i]\n }\n this._multiply()\n}\n\nGHASH.prototype._multiply = function () {\n var Vi = toArray(this.h)\n var Zi = [0, 0, 0, 0]\n var j, xi, lsbVi\n var i = -1\n while (++i < 128) {\n xi = (this.state[~~(i / 8)] & (1 << (7 - (i % 8)))) !== 0\n if (xi) {\n // Z_i+1 = Z_i ^ V_i\n Zi[0] ^= Vi[0]\n Zi[1] ^= Vi[1]\n Zi[2] ^= Vi[2]\n Zi[3] ^= Vi[3]\n }\n\n // Store the value of LSB(V_i)\n lsbVi = (Vi[3] & 1) !== 0\n\n // V_i+1 = V_i >> 1\n for (j = 3; j > 0; j--) {\n Vi[j] = (Vi[j] >>> 1) | ((Vi[j - 1] & 1) << 31)\n }\n Vi[0] = Vi[0] >>> 1\n\n // If LSB(V_i) is 1, V_i+1 = (V_i >> 1) ^ R\n if (lsbVi) {\n Vi[0] = Vi[0] ^ (0xe1 << 24)\n }\n }\n this.state = fromArray(Zi)\n}\n\nGHASH.prototype.update = function (buf) {\n this.cache = Buffer.concat([this.cache, buf])\n var chunk\n while (this.cache.length >= 16) {\n chunk = this.cache.slice(0, 16)\n this.cache = this.cache.slice(16)\n this.ghash(chunk)\n }\n}\n\nGHASH.prototype.final = function (abl, bl) {\n if (this.cache.length) {\n this.ghash(Buffer.concat([this.cache, ZEROES], 16))\n }\n\n this.ghash(fromArray([0, abl, 0, bl]))\n return this.state\n}\n\nmodule.exports = GHASH\n","function incr32 (iv) {\n var len = iv.length\n var item\n while (len--) {\n item = iv.readUInt8(len)\n if (item === 255) {\n iv.writeUInt8(0, len)\n } else {\n item++\n iv.writeUInt8(item, len)\n break\n }\n }\n}\nmodule.exports = incr32\n","var xor = require('buffer-xor')\n\nexports.encrypt = function (self, block) {\n var data = xor(block, self._prev)\n\n self._prev = self._cipher.encryptBlock(data)\n return self._prev\n}\n\nexports.decrypt = function (self, block) {\n var pad = self._prev\n\n self._prev = block\n var out = self._cipher.decryptBlock(block)\n\n return xor(out, pad)\n}\n","var Buffer = require('safe-buffer').Buffer\nvar xor = require('buffer-xor')\n\nfunction encryptStart (self, data, decrypt) {\n var len = data.length\n var out = xor(data, self._cache)\n self._cache = self._cache.slice(len)\n self._prev = Buffer.concat([self._prev, decrypt ? data : out])\n return out\n}\n\nexports.encrypt = function (self, data, decrypt) {\n var out = Buffer.allocUnsafe(0)\n var len\n\n while (data.length) {\n if (self._cache.length === 0) {\n self._cache = self._cipher.encryptBlock(self._prev)\n self._prev = Buffer.allocUnsafe(0)\n }\n\n if (self._cache.length <= data.length) {\n len = self._cache.length\n out = Buffer.concat([out, encryptStart(self, data.slice(0, len), decrypt)])\n data = data.slice(len)\n } else {\n out = Buffer.concat([out, encryptStart(self, data, decrypt)])\n break\n }\n }\n\n return out\n}\n","var Buffer = require('safe-buffer').Buffer\n\nfunction encryptByte (self, byteParam, decrypt) {\n var pad\n var i = -1\n var len = 8\n var out = 0\n var bit, value\n while (++i < len) {\n pad = self._cipher.encryptBlock(self._prev)\n bit = (byteParam & (1 << (7 - i))) ? 0x80 : 0\n value = pad[0] ^ bit\n out += ((value & 0x80) >> (i % 8))\n self._prev = shiftIn(self._prev, decrypt ? bit : value)\n }\n return out\n}\n\nfunction shiftIn (buffer, value) {\n var len = buffer.length\n var i = -1\n var out = Buffer.allocUnsafe(buffer.length)\n buffer = Buffer.concat([buffer, Buffer.from([value])])\n\n while (++i < len) {\n out[i] = buffer[i] << 1 | buffer[i + 1] >> (7)\n }\n\n return out\n}\n\nexports.encrypt = function (self, chunk, decrypt) {\n var len = chunk.length\n var out = Buffer.allocUnsafe(len)\n var i = -1\n\n while (++i < len) {\n out[i] = encryptByte(self, chunk[i], decrypt)\n }\n\n return out\n}\n","var Buffer = require('safe-buffer').Buffer\n\nfunction encryptByte (self, byteParam, decrypt) {\n var pad = self._cipher.encryptBlock(self._prev)\n var out = pad[0] ^ byteParam\n\n self._prev = Buffer.concat([\n self._prev.slice(1),\n Buffer.from([decrypt ? byteParam : out])\n ])\n\n return out\n}\n\nexports.encrypt = function (self, chunk, decrypt) {\n var len = chunk.length\n var out = Buffer.allocUnsafe(len)\n var i = -1\n\n while (++i < len) {\n out[i] = encryptByte(self, chunk[i], decrypt)\n }\n\n return out\n}\n","var xor = require('buffer-xor')\nvar Buffer = require('safe-buffer').Buffer\nvar incr32 = require('../incr32')\n\nfunction getBlock (self) {\n var out = self._cipher.encryptBlockRaw(self._prev)\n incr32(self._prev)\n return out\n}\n\nvar blockSize = 16\nexports.encrypt = function (self, chunk) {\n var chunkNum = Math.ceil(chunk.length / blockSize)\n var start = self._cache.length\n self._cache = Buffer.concat([\n self._cache,\n Buffer.allocUnsafe(chunkNum * blockSize)\n ])\n for (var i = 0; i < chunkNum; i++) {\n var out = getBlock(self)\n var offset = start + i * blockSize\n self._cache.writeUInt32BE(out[0], offset + 0)\n self._cache.writeUInt32BE(out[1], offset + 4)\n self._cache.writeUInt32BE(out[2], offset + 8)\n self._cache.writeUInt32BE(out[3], offset + 12)\n }\n var pad = self._cache.slice(0, chunk.length)\n self._cache = self._cache.slice(chunk.length)\n return xor(chunk, pad)\n}\n","exports.encrypt = function (self, block) {\n return self._cipher.encryptBlock(block)\n}\n\nexports.decrypt = function (self, block) {\n return self._cipher.decryptBlock(block)\n}\n","var modeModules = {\n ECB: require('./ecb'),\n CBC: require('./cbc'),\n CFB: require('./cfb'),\n CFB8: require('./cfb8'),\n CFB1: require('./cfb1'),\n OFB: require('./ofb'),\n CTR: require('./ctr'),\n GCM: require('./ctr')\n}\n\nvar modes = require('./list.json')\n\nfor (var key in modes) {\n modes[key].module = modeModules[modes[key].mode]\n}\n\nmodule.exports = modes\n","var xor = require('buffer-xor')\n\nfunction getBlock (self) {\n self._prev = self._cipher.encryptBlock(self._prev)\n return self._prev\n}\n\nexports.encrypt = function (self, chunk) {\n while (self._cache.length < chunk.length) {\n self._cache = Buffer.concat([self._cache, getBlock(self)])\n }\n\n var pad = self._cache.slice(0, chunk.length)\n self._cache = self._cache.slice(chunk.length)\n return xor(chunk, pad)\n}\n","var aes = require('./aes')\nvar Buffer = require('safe-buffer').Buffer\nvar Transform = require('cipher-base')\nvar inherits = require('inherits')\n\nfunction StreamCipher (mode, key, iv, decrypt) {\n Transform.call(this)\n\n this._cipher = new aes.AES(key)\n this._prev = Buffer.from(iv)\n this._cache = Buffer.allocUnsafe(0)\n this._secCache = Buffer.allocUnsafe(0)\n this._decrypt = decrypt\n this._mode = mode\n}\n\ninherits(StreamCipher, Transform)\n\nStreamCipher.prototype._update = function (chunk) {\n return this._mode.encrypt(this, chunk, this._decrypt)\n}\n\nStreamCipher.prototype._final = function () {\n this._cipher.scrub()\n}\n\nmodule.exports = StreamCipher\n","var DES = require('browserify-des')\nvar aes = require('browserify-aes/browser')\nvar aesModes = require('browserify-aes/modes')\nvar desModes = require('browserify-des/modes')\nvar ebtk = require('evp_bytestokey')\n\nfunction createCipher (suite, password) {\n suite = suite.toLowerCase()\n\n var keyLen, ivLen\n if (aesModes[suite]) {\n keyLen = aesModes[suite].key\n ivLen = aesModes[suite].iv\n } else if (desModes[suite]) {\n keyLen = desModes[suite].key * 8\n ivLen = desModes[suite].iv\n } else {\n throw new TypeError('invalid suite type')\n }\n\n var keys = ebtk(password, false, keyLen, ivLen)\n return createCipheriv(suite, keys.key, keys.iv)\n}\n\nfunction createDecipher (suite, password) {\n suite = suite.toLowerCase()\n\n var keyLen, ivLen\n if (aesModes[suite]) {\n keyLen = aesModes[suite].key\n ivLen = aesModes[suite].iv\n } else if (desModes[suite]) {\n keyLen = desModes[suite].key * 8\n ivLen = desModes[suite].iv\n } else {\n throw new TypeError('invalid suite type')\n }\n\n var keys = ebtk(password, false, keyLen, ivLen)\n return createDecipheriv(suite, keys.key, keys.iv)\n}\n\nfunction createCipheriv (suite, key, iv) {\n suite = suite.toLowerCase()\n if (aesModes[suite]) return aes.createCipheriv(suite, key, iv)\n if (desModes[suite]) return new DES({ key: key, iv: iv, mode: suite })\n\n throw new TypeError('invalid suite type')\n}\n\nfunction createDecipheriv (suite, key, iv) {\n suite = suite.toLowerCase()\n if (aesModes[suite]) return aes.createDecipheriv(suite, key, iv)\n if (desModes[suite]) return new DES({ key: key, iv: iv, mode: suite, decrypt: true })\n\n throw new TypeError('invalid suite type')\n}\n\nfunction getCiphers () {\n return Object.keys(desModes).concat(aes.getCiphers())\n}\n\nexports.createCipher = exports.Cipher = createCipher\nexports.createCipheriv = exports.Cipheriv = createCipheriv\nexports.createDecipher = exports.Decipher = createDecipher\nexports.createDecipheriv = exports.Decipheriv = createDecipheriv\nexports.listCiphers = exports.getCiphers = getCiphers\n","var CipherBase = require('cipher-base')\nvar des = require('des.js')\nvar inherits = require('inherits')\nvar Buffer = require('safe-buffer').Buffer\n\nvar modes = {\n 'des-ede3-cbc': des.CBC.instantiate(des.EDE),\n 'des-ede3': des.EDE,\n 'des-ede-cbc': des.CBC.instantiate(des.EDE),\n 'des-ede': des.EDE,\n 'des-cbc': des.CBC.instantiate(des.DES),\n 'des-ecb': des.DES\n}\nmodes.des = modes['des-cbc']\nmodes.des3 = modes['des-ede3-cbc']\nmodule.exports = DES\ninherits(DES, CipherBase)\nfunction DES (opts) {\n CipherBase.call(this)\n var modeName = opts.mode.toLowerCase()\n var mode = modes[modeName]\n var type\n if (opts.decrypt) {\n type = 'decrypt'\n } else {\n type = 'encrypt'\n }\n var key = opts.key\n if (!Buffer.isBuffer(key)) {\n key = Buffer.from(key)\n }\n if (modeName === 'des-ede' || modeName === 'des-ede-cbc') {\n key = Buffer.concat([key, key.slice(0, 8)])\n }\n var iv = opts.iv\n if (!Buffer.isBuffer(iv)) {\n iv = Buffer.from(iv)\n }\n this._des = mode.create({\n key: key,\n iv: iv,\n type: type\n })\n}\nDES.prototype._update = function (data) {\n return Buffer.from(this._des.update(data))\n}\nDES.prototype._final = function () {\n return Buffer.from(this._des.final())\n}\n","exports['des-ecb'] = {\n key: 8,\n iv: 0\n}\nexports['des-cbc'] = exports.des = {\n key: 8,\n iv: 8\n}\nexports['des-ede3-cbc'] = exports.des3 = {\n key: 24,\n iv: 8\n}\nexports['des-ede3'] = {\n key: 24,\n iv: 0\n}\nexports['des-ede-cbc'] = {\n key: 16,\n iv: 8\n}\nexports['des-ede'] = {\n key: 16,\n iv: 0\n}\n","'use strict';\n\nvar BN = require('bn.js');\nvar randomBytes = require('randombytes');\nvar Buffer = require('safe-buffer').Buffer;\n\nfunction getr(priv) {\n\tvar len = priv.modulus.byteLength();\n\tvar r;\n\tdo {\n\t\tr = new BN(randomBytes(len));\n\t} while (r.cmp(priv.modulus) >= 0 || !r.umod(priv.prime1) || !r.umod(priv.prime2));\n\treturn r;\n}\n\nfunction blind(priv) {\n\tvar r = getr(priv);\n\tvar blinder = r.toRed(BN.mont(priv.modulus)).redPow(new BN(priv.publicExponent)).fromRed();\n\treturn { blinder: blinder, unblinder: r.invm(priv.modulus) };\n}\n\nfunction crt(msg, priv) {\n\tvar blinds = blind(priv);\n\tvar len = priv.modulus.byteLength();\n\tvar blinded = new BN(msg).mul(blinds.blinder).umod(priv.modulus);\n\tvar c1 = blinded.toRed(BN.mont(priv.prime1));\n\tvar c2 = blinded.toRed(BN.mont(priv.prime2));\n\tvar qinv = priv.coefficient;\n\tvar p = priv.prime1;\n\tvar q = priv.prime2;\n\tvar m1 = c1.redPow(priv.exponent1).fromRed();\n\tvar m2 = c2.redPow(priv.exponent2).fromRed();\n\tvar h = m1.isub(m2).imul(qinv).umod(p).imul(q);\n\treturn m2.iadd(h).imul(blinds.unblinder).umod(priv.modulus).toArrayLike(Buffer, 'be', len);\n}\ncrt.getr = getr;\n\nmodule.exports = crt;\n","'use strict';\n\nmodule.exports = require('./browser/algorithms.json');\n","'use strict';\n\nvar Buffer = require('safe-buffer').Buffer;\nvar createHash = require('create-hash');\nvar stream = require('readable-stream');\nvar inherits = require('inherits');\nvar sign = require('./sign');\nvar verify = require('./verify');\n\nvar algorithms = require('./algorithms.json');\nObject.keys(algorithms).forEach(function (key) {\n algorithms[key].id = Buffer.from(algorithms[key].id, 'hex');\n algorithms[key.toLowerCase()] = algorithms[key];\n});\n\nfunction Sign(algorithm) {\n stream.Writable.call(this);\n\n var data = algorithms[algorithm];\n if (!data) { throw new Error('Unknown message digest'); }\n\n this._hashType = data.hash;\n this._hash = createHash(data.hash);\n this._tag = data.id;\n this._signType = data.sign;\n}\ninherits(Sign, stream.Writable);\n\nSign.prototype._write = function _write(data, _, done) {\n this._hash.update(data);\n done();\n};\n\nSign.prototype.update = function update(data, enc) {\n this._hash.update(typeof data === 'string' ? Buffer.from(data, enc) : data);\n\n return this;\n};\n\nSign.prototype.sign = function signMethod(key, enc) {\n this.end();\n var hash = this._hash.digest();\n var sig = sign(hash, key, this._hashType, this._signType, this._tag);\n\n return enc ? sig.toString(enc) : sig;\n};\n\nfunction Verify(algorithm) {\n stream.Writable.call(this);\n\n var data = algorithms[algorithm];\n if (!data) { throw new Error('Unknown message digest'); }\n\n this._hash = createHash(data.hash);\n this._tag = data.id;\n this._signType = data.sign;\n}\ninherits(Verify, stream.Writable);\n\nVerify.prototype._write = function _write(data, _, done) {\n this._hash.update(data);\n done();\n};\n\nVerify.prototype.update = function update(data, enc) {\n this._hash.update(typeof data === 'string' ? Buffer.from(data, enc) : data);\n\n return this;\n};\n\nVerify.prototype.verify = function verifyMethod(key, sig, enc) {\n var sigBuffer = typeof sig === 'string' ? Buffer.from(sig, enc) : sig;\n\n this.end();\n var hash = this._hash.digest();\n return verify(sigBuffer, hash, key, this._signType, this._tag);\n};\n\nfunction createSign(algorithm) {\n return new Sign(algorithm);\n}\n\nfunction createVerify(algorithm) {\n return new Verify(algorithm);\n}\n\nmodule.exports = {\n Sign: createSign,\n Verify: createVerify,\n createSign: createSign,\n createVerify: createVerify\n};\n","'use strict';\n\n// much of this based on https://github.com/indutny/self-signed/blob/gh-pages/lib/rsa.js\nvar Buffer = require('safe-buffer').Buffer;\nvar createHmac = require('create-hmac');\nvar crt = require('browserify-rsa');\nvar EC = require('elliptic').ec;\nvar BN = require('bn.js');\nvar parseKeys = require('parse-asn1');\nvar curves = require('./curves.json');\n\nvar RSA_PKCS1_PADDING = 1;\n\nfunction sign(hash, key, hashType, signType, tag) {\n var priv = parseKeys(key);\n if (priv.curve) {\n // rsa keys can be interpreted as ecdsa ones in openssl\n if (signType !== 'ecdsa' && signType !== 'ecdsa/rsa') { throw new Error('wrong private key type'); }\n return ecSign(hash, priv);\n } else if (priv.type === 'dsa') {\n if (signType !== 'dsa') { throw new Error('wrong private key type'); }\n return dsaSign(hash, priv, hashType);\n }\n if (signType !== 'rsa' && signType !== 'ecdsa/rsa') { throw new Error('wrong private key type'); }\n if (key.padding !== undefined && key.padding !== RSA_PKCS1_PADDING) { throw new Error('illegal or unsupported padding mode'); }\n\n hash = Buffer.concat([tag, hash]);\n var len = priv.modulus.byteLength();\n var pad = [0, 1];\n while (hash.length + pad.length + 1 < len) { pad.push(0xff); }\n pad.push(0x00);\n var i = -1;\n while (++i < hash.length) { pad.push(hash[i]); }\n\n var out = crt(pad, priv);\n return out;\n}\n\nfunction ecSign(hash, priv) {\n var curveId = curves[priv.curve.join('.')];\n if (!curveId) { throw new Error('unknown curve ' + priv.curve.join('.')); }\n\n var curve = new EC(curveId);\n var key = curve.keyFromPrivate(priv.privateKey);\n var out = key.sign(hash);\n\n return Buffer.from(out.toDER());\n}\n\nfunction dsaSign(hash, priv, algo) {\n var x = priv.params.priv_key;\n var p = priv.params.p;\n var q = priv.params.q;\n var g = priv.params.g;\n var r = new BN(0);\n var k;\n var H = bits2int(hash, q).mod(q);\n var s = false;\n var kv = getKey(x, q, hash, algo);\n while (s === false) {\n k = makeKey(q, kv, algo);\n r = makeR(g, k, p, q);\n s = k.invm(q).imul(H.add(x.mul(r))).mod(q);\n if (s.cmpn(0) === 0) {\n s = false;\n r = new BN(0);\n }\n }\n return toDER(r, s);\n}\n\nfunction toDER(r, s) {\n r = r.toArray();\n s = s.toArray();\n\n // Pad values\n if (r[0] & 0x80) { r = [0].concat(r); }\n if (s[0] & 0x80) { s = [0].concat(s); }\n\n var total = r.length + s.length + 4;\n var res = [\n 0x30, total, 0x02, r.length\n ];\n res = res.concat(r, [0x02, s.length], s);\n return Buffer.from(res);\n}\n\nfunction getKey(x, q, hash, algo) {\n x = Buffer.from(x.toArray());\n if (x.length < q.byteLength()) {\n var zeros = Buffer.alloc(q.byteLength() - x.length);\n x = Buffer.concat([zeros, x]);\n }\n var hlen = hash.length;\n var hbits = bits2octets(hash, q);\n var v = Buffer.alloc(hlen);\n v.fill(1);\n var k = Buffer.alloc(hlen);\n k = createHmac(algo, k).update(v).update(Buffer.from([0])).update(x).update(hbits).digest();\n v = createHmac(algo, k).update(v).digest();\n k = createHmac(algo, k).update(v).update(Buffer.from([1])).update(x).update(hbits).digest();\n v = createHmac(algo, k).update(v).digest();\n return { k: k, v: v };\n}\n\nfunction bits2int(obits, q) {\n var bits = new BN(obits);\n var shift = (obits.length << 3) - q.bitLength();\n if (shift > 0) { bits.ishrn(shift); }\n return bits;\n}\n\nfunction bits2octets(bits, q) {\n bits = bits2int(bits, q);\n bits = bits.mod(q);\n var out = Buffer.from(bits.toArray());\n if (out.length < q.byteLength()) {\n var zeros = Buffer.alloc(q.byteLength() - out.length);\n out = Buffer.concat([zeros, out]);\n }\n return out;\n}\n\nfunction makeKey(q, kv, algo) {\n var t;\n var k;\n\n do {\n t = Buffer.alloc(0);\n\n while (t.length * 8 < q.bitLength()) {\n kv.v = createHmac(algo, kv.k).update(kv.v).digest();\n t = Buffer.concat([t, kv.v]);\n }\n\n k = bits2int(t, q);\n kv.k = createHmac(algo, kv.k).update(kv.v).update(Buffer.from([0])).digest();\n kv.v = createHmac(algo, kv.k).update(kv.v).digest();\n } while (k.cmp(q) !== -1);\n\n return k;\n}\n\nfunction makeR(g, k, p, q) {\n return g.toRed(BN.mont(p)).redPow(k).fromRed().mod(q);\n}\n\nmodule.exports = sign;\nmodule.exports.getKey = getKey;\nmodule.exports.makeKey = makeKey;\n","'use strict';\n\n// much of this based on https://github.com/indutny/self-signed/blob/gh-pages/lib/rsa.js\nvar Buffer = require('safe-buffer').Buffer;\nvar BN = require('bn.js');\nvar EC = require('elliptic').ec;\nvar parseKeys = require('parse-asn1');\nvar curves = require('./curves.json');\n\nfunction verify(sig, hash, key, signType, tag) {\n var pub = parseKeys(key);\n if (pub.type === 'ec') {\n // rsa keys can be interpreted as ecdsa ones in openssl\n if (signType !== 'ecdsa' && signType !== 'ecdsa/rsa') { throw new Error('wrong public key type'); }\n return ecVerify(sig, hash, pub);\n } else if (pub.type === 'dsa') {\n if (signType !== 'dsa') { throw new Error('wrong public key type'); }\n return dsaVerify(sig, hash, pub);\n }\n if (signType !== 'rsa' && signType !== 'ecdsa/rsa') { throw new Error('wrong public key type'); }\n\n hash = Buffer.concat([tag, hash]);\n var len = pub.modulus.byteLength();\n var pad = [1];\n var padNum = 0;\n while (hash.length + pad.length + 2 < len) {\n pad.push(0xff);\n padNum += 1;\n }\n pad.push(0x00);\n var i = -1;\n while (++i < hash.length) {\n pad.push(hash[i]);\n }\n pad = Buffer.from(pad);\n var red = BN.mont(pub.modulus);\n sig = new BN(sig).toRed(red);\n\n sig = sig.redPow(new BN(pub.publicExponent));\n sig = Buffer.from(sig.fromRed().toArray());\n var out = padNum < 8 ? 1 : 0;\n len = Math.min(sig.length, pad.length);\n if (sig.length !== pad.length) { out = 1; }\n\n i = -1;\n while (++i < len) { out |= sig[i] ^ pad[i]; }\n return out === 0;\n}\n\nfunction ecVerify(sig, hash, pub) {\n var curveId = curves[pub.data.algorithm.curve.join('.')];\n if (!curveId) { throw new Error('unknown curve ' + pub.data.algorithm.curve.join('.')); }\n\n var curve = new EC(curveId);\n var pubkey = pub.data.subjectPrivateKey.data;\n\n return curve.verify(hash, sig, pubkey);\n}\n\nfunction dsaVerify(sig, hash, pub) {\n var p = pub.data.p;\n var q = pub.data.q;\n var g = pub.data.g;\n var y = pub.data.pub_key;\n var unpacked = parseKeys.signature.decode(sig, 'der');\n var s = unpacked.s;\n var r = unpacked.r;\n checkValue(s, q);\n checkValue(r, q);\n var montp = BN.mont(p);\n var w = s.invm(q);\n var v = g.toRed(montp)\n .redPow(new BN(hash).mul(w).mod(q))\n .fromRed()\n .mul(y.toRed(montp).redPow(r.mul(w).mod(q)).fromRed())\n .mod(p)\n .mod(q);\n return v.cmp(r) === 0;\n}\n\nfunction checkValue(b, q) {\n if (b.cmpn(0) <= 0) { throw new Error('invalid sig'); }\n if (b.cmp(q) >= 0) { throw new Error('invalid sig'); }\n}\n\nmodule.exports = verify;\n","module.exports = function xor (a, b) {\n var length = Math.min(a.length, b.length)\n var buffer = new Buffer(length)\n\n for (var i = 0; i < length; ++i) {\n buffer[i] = a[i] ^ b[i]\n }\n\n return buffer\n}\n","/*!\n * The buffer module from node.js, for the browser.\n *\n * @author Feross Aboukhadijeh \n * @license MIT\n */\n/* eslint-disable no-proto */\n\n'use strict'\n\nconst base64 = require('base64-js')\nconst ieee754 = require('ieee754')\nconst customInspectSymbol =\n (typeof Symbol === 'function' && typeof Symbol['for'] === 'function') // eslint-disable-line dot-notation\n ? Symbol['for']('nodejs.util.inspect.custom') // eslint-disable-line dot-notation\n : null\n\nexports.Buffer = Buffer\nexports.SlowBuffer = SlowBuffer\nexports.INSPECT_MAX_BYTES = 50\n\nconst K_MAX_LENGTH = 0x7fffffff\nexports.kMaxLength = K_MAX_LENGTH\n\n/**\n * If `Buffer.TYPED_ARRAY_SUPPORT`:\n * === true Use Uint8Array implementation (fastest)\n * === false Print warning and recommend using `buffer` v4.x which has an Object\n * implementation (most compatible, even IE6)\n *\n * Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+,\n * Opera 11.6+, iOS 4.2+.\n *\n * We report that the browser does not support typed arrays if the are not subclassable\n * using __proto__. Firefox 4-29 lacks support for adding new properties to `Uint8Array`\n * (See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438). IE 10 lacks support\n * for __proto__ and has a buggy typed array implementation.\n */\nBuffer.TYPED_ARRAY_SUPPORT = typedArraySupport()\n\nif (!Buffer.TYPED_ARRAY_SUPPORT && typeof console !== 'undefined' &&\n typeof console.error === 'function') {\n console.error(\n 'This browser lacks typed array (Uint8Array) support which is required by ' +\n '`buffer` v5.x. Use `buffer` v4.x if you require old browser support.'\n )\n}\n\nfunction typedArraySupport () {\n // Can typed array instances can be augmented?\n try {\n const arr = new Uint8Array(1)\n const proto = { foo: function () { return 42 } }\n Object.setPrototypeOf(proto, Uint8Array.prototype)\n Object.setPrototypeOf(arr, proto)\n return arr.foo() === 42\n } catch (e) {\n return false\n }\n}\n\nObject.defineProperty(Buffer.prototype, 'parent', {\n enumerable: true,\n get: function () {\n if (!Buffer.isBuffer(this)) return undefined\n return this.buffer\n }\n})\n\nObject.defineProperty(Buffer.prototype, 'offset', {\n enumerable: true,\n get: function () {\n if (!Buffer.isBuffer(this)) return undefined\n return this.byteOffset\n }\n})\n\nfunction createBuffer (length) {\n if (length > K_MAX_LENGTH) {\n throw new RangeError('The value \"' + length + '\" is invalid for option \"size\"')\n }\n // Return an augmented `Uint8Array` instance\n const buf = new Uint8Array(length)\n Object.setPrototypeOf(buf, Buffer.prototype)\n return buf\n}\n\n/**\n * The Buffer constructor returns instances of `Uint8Array` that have their\n * prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of\n * `Uint8Array`, so the returned instances will have all the node `Buffer` methods\n * and the `Uint8Array` methods. Square bracket notation works as expected -- it\n * returns a single octet.\n *\n * The `Uint8Array` prototype remains unmodified.\n */\n\nfunction Buffer (arg, encodingOrOffset, length) {\n // Common case.\n if (typeof arg === 'number') {\n if (typeof encodingOrOffset === 'string') {\n throw new TypeError(\n 'The \"string\" argument must be of type string. Received type number'\n )\n }\n return allocUnsafe(arg)\n }\n return from(arg, encodingOrOffset, length)\n}\n\nBuffer.poolSize = 8192 // not used by this implementation\n\nfunction from (value, encodingOrOffset, length) {\n if (typeof value === 'string') {\n return fromString(value, encodingOrOffset)\n }\n\n if (ArrayBuffer.isView(value)) {\n return fromArrayView(value)\n }\n\n if (value == null) {\n throw new TypeError(\n 'The first argument must be one of type string, Buffer, ArrayBuffer, Array, ' +\n 'or Array-like Object. Received type ' + (typeof value)\n )\n }\n\n if (isInstance(value, ArrayBuffer) ||\n (value && isInstance(value.buffer, ArrayBuffer))) {\n return fromArrayBuffer(value, encodingOrOffset, length)\n }\n\n if (typeof SharedArrayBuffer !== 'undefined' &&\n (isInstance(value, SharedArrayBuffer) ||\n (value && isInstance(value.buffer, SharedArrayBuffer)))) {\n return fromArrayBuffer(value, encodingOrOffset, length)\n }\n\n if (typeof value === 'number') {\n throw new TypeError(\n 'The \"value\" argument must not be of type number. Received type number'\n )\n }\n\n const valueOf = value.valueOf && value.valueOf()\n if (valueOf != null && valueOf !== value) {\n return Buffer.from(valueOf, encodingOrOffset, length)\n }\n\n const b = fromObject(value)\n if (b) return b\n\n if (typeof Symbol !== 'undefined' && Symbol.toPrimitive != null &&\n typeof value[Symbol.toPrimitive] === 'function') {\n return Buffer.from(value[Symbol.toPrimitive]('string'), encodingOrOffset, length)\n }\n\n throw new TypeError(\n 'The first argument must be one of type string, Buffer, ArrayBuffer, Array, ' +\n 'or Array-like Object. Received type ' + (typeof value)\n )\n}\n\n/**\n * Functionally equivalent to Buffer(arg, encoding) but throws a TypeError\n * if value is a number.\n * Buffer.from(str[, encoding])\n * Buffer.from(array)\n * Buffer.from(buffer)\n * Buffer.from(arrayBuffer[, byteOffset[, length]])\n **/\nBuffer.from = function (value, encodingOrOffset, length) {\n return from(value, encodingOrOffset, length)\n}\n\n// Note: Change prototype *after* Buffer.from is defined to workaround Chrome bug:\n// https://github.com/feross/buffer/pull/148\nObject.setPrototypeOf(Buffer.prototype, Uint8Array.prototype)\nObject.setPrototypeOf(Buffer, Uint8Array)\n\nfunction assertSize (size) {\n if (typeof size !== 'number') {\n throw new TypeError('\"size\" argument must be of type number')\n } else if (size < 0) {\n throw new RangeError('The value \"' + size + '\" is invalid for option \"size\"')\n }\n}\n\nfunction alloc (size, fill, encoding) {\n assertSize(size)\n if (size <= 0) {\n return createBuffer(size)\n }\n if (fill !== undefined) {\n // Only pay attention to encoding if it's a string. This\n // prevents accidentally sending in a number that would\n // be interpreted as a start offset.\n return typeof encoding === 'string'\n ? createBuffer(size).fill(fill, encoding)\n : createBuffer(size).fill(fill)\n }\n return createBuffer(size)\n}\n\n/**\n * Creates a new filled Buffer instance.\n * alloc(size[, fill[, encoding]])\n **/\nBuffer.alloc = function (size, fill, encoding) {\n return alloc(size, fill, encoding)\n}\n\nfunction allocUnsafe (size) {\n assertSize(size)\n return createBuffer(size < 0 ? 0 : checked(size) | 0)\n}\n\n/**\n * Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.\n * */\nBuffer.allocUnsafe = function (size) {\n return allocUnsafe(size)\n}\n/**\n * Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.\n */\nBuffer.allocUnsafeSlow = function (size) {\n return allocUnsafe(size)\n}\n\nfunction fromString (string, encoding) {\n if (typeof encoding !== 'string' || encoding === '') {\n encoding = 'utf8'\n }\n\n if (!Buffer.isEncoding(encoding)) {\n throw new TypeError('Unknown encoding: ' + encoding)\n }\n\n const length = byteLength(string, encoding) | 0\n let buf = createBuffer(length)\n\n const actual = buf.write(string, encoding)\n\n if (actual !== length) {\n // Writing a hex string, for example, that contains invalid characters will\n // cause everything after the first invalid character to be ignored. (e.g.\n // 'abxxcd' will be treated as 'ab')\n buf = buf.slice(0, actual)\n }\n\n return buf\n}\n\nfunction fromArrayLike (array) {\n const length = array.length < 0 ? 0 : checked(array.length) | 0\n const buf = createBuffer(length)\n for (let i = 0; i < length; i += 1) {\n buf[i] = array[i] & 255\n }\n return buf\n}\n\nfunction fromArrayView (arrayView) {\n if (isInstance(arrayView, Uint8Array)) {\n const copy = new Uint8Array(arrayView)\n return fromArrayBuffer(copy.buffer, copy.byteOffset, copy.byteLength)\n }\n return fromArrayLike(arrayView)\n}\n\nfunction fromArrayBuffer (array, byteOffset, length) {\n if (byteOffset < 0 || array.byteLength < byteOffset) {\n throw new RangeError('\"offset\" is outside of buffer bounds')\n }\n\n if (array.byteLength < byteOffset + (length || 0)) {\n throw new RangeError('\"length\" is outside of buffer bounds')\n }\n\n let buf\n if (byteOffset === undefined && length === undefined) {\n buf = new Uint8Array(array)\n } else if (length === undefined) {\n buf = new Uint8Array(array, byteOffset)\n } else {\n buf = new Uint8Array(array, byteOffset, length)\n }\n\n // Return an augmented `Uint8Array` instance\n Object.setPrototypeOf(buf, Buffer.prototype)\n\n return buf\n}\n\nfunction fromObject (obj) {\n if (Buffer.isBuffer(obj)) {\n const len = checked(obj.length) | 0\n const buf = createBuffer(len)\n\n if (buf.length === 0) {\n return buf\n }\n\n obj.copy(buf, 0, 0, len)\n return buf\n }\n\n if (obj.length !== undefined) {\n if (typeof obj.length !== 'number' || numberIsNaN(obj.length)) {\n return createBuffer(0)\n }\n return fromArrayLike(obj)\n }\n\n if (obj.type === 'Buffer' && Array.isArray(obj.data)) {\n return fromArrayLike(obj.data)\n }\n}\n\nfunction checked (length) {\n // Note: cannot use `length < K_MAX_LENGTH` here because that fails when\n // length is NaN (which is otherwise coerced to zero.)\n if (length >= K_MAX_LENGTH) {\n throw new RangeError('Attempt to allocate Buffer larger than maximum ' +\n 'size: 0x' + K_MAX_LENGTH.toString(16) + ' bytes')\n }\n return length | 0\n}\n\nfunction SlowBuffer (length) {\n if (+length != length) { // eslint-disable-line eqeqeq\n length = 0\n }\n return Buffer.alloc(+length)\n}\n\nBuffer.isBuffer = function isBuffer (b) {\n return b != null && b._isBuffer === true &&\n b !== Buffer.prototype // so Buffer.isBuffer(Buffer.prototype) will be false\n}\n\nBuffer.compare = function compare (a, b) {\n if (isInstance(a, Uint8Array)) a = Buffer.from(a, a.offset, a.byteLength)\n if (isInstance(b, Uint8Array)) b = Buffer.from(b, b.offset, b.byteLength)\n if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {\n throw new TypeError(\n 'The \"buf1\", \"buf2\" arguments must be one of type Buffer or Uint8Array'\n )\n }\n\n if (a === b) return 0\n\n let x = a.length\n let y = b.length\n\n for (let i = 0, len = Math.min(x, y); i < len; ++i) {\n if (a[i] !== b[i]) {\n x = a[i]\n y = b[i]\n break\n }\n }\n\n if (x < y) return -1\n if (y < x) return 1\n return 0\n}\n\nBuffer.isEncoding = function isEncoding (encoding) {\n switch (String(encoding).toLowerCase()) {\n case 'hex':\n case 'utf8':\n case 'utf-8':\n case 'ascii':\n case 'latin1':\n case 'binary':\n case 'base64':\n case 'ucs2':\n case 'ucs-2':\n case 'utf16le':\n case 'utf-16le':\n return true\n default:\n return false\n }\n}\n\nBuffer.concat = function concat (list, length) {\n if (!Array.isArray(list)) {\n throw new TypeError('\"list\" argument must be an Array of Buffers')\n }\n\n if (list.length === 0) {\n return Buffer.alloc(0)\n }\n\n let i\n if (length === undefined) {\n length = 0\n for (i = 0; i < list.length; ++i) {\n length += list[i].length\n }\n }\n\n const buffer = Buffer.allocUnsafe(length)\n let pos = 0\n for (i = 0; i < list.length; ++i) {\n let buf = list[i]\n if (isInstance(buf, Uint8Array)) {\n if (pos + buf.length > buffer.length) {\n if (!Buffer.isBuffer(buf)) buf = Buffer.from(buf)\n buf.copy(buffer, pos)\n } else {\n Uint8Array.prototype.set.call(\n buffer,\n buf,\n pos\n )\n }\n } else if (!Buffer.isBuffer(buf)) {\n throw new TypeError('\"list\" argument must be an Array of Buffers')\n } else {\n buf.copy(buffer, pos)\n }\n pos += buf.length\n }\n return buffer\n}\n\nfunction byteLength (string, encoding) {\n if (Buffer.isBuffer(string)) {\n return string.length\n }\n if (ArrayBuffer.isView(string) || isInstance(string, ArrayBuffer)) {\n return string.byteLength\n }\n if (typeof string !== 'string') {\n throw new TypeError(\n 'The \"string\" argument must be one of type string, Buffer, or ArrayBuffer. ' +\n 'Received type ' + typeof string\n )\n }\n\n const len = string.length\n const mustMatch = (arguments.length > 2 && arguments[2] === true)\n if (!mustMatch && len === 0) return 0\n\n // Use a for loop to avoid recursion\n let loweredCase = false\n for (;;) {\n switch (encoding) {\n case 'ascii':\n case 'latin1':\n case 'binary':\n return len\n case 'utf8':\n case 'utf-8':\n return utf8ToBytes(string).length\n case 'ucs2':\n case 'ucs-2':\n case 'utf16le':\n case 'utf-16le':\n return len * 2\n case 'hex':\n return len >>> 1\n case 'base64':\n return base64ToBytes(string).length\n default:\n if (loweredCase) {\n return mustMatch ? -1 : utf8ToBytes(string).length // assume utf8\n }\n encoding = ('' + encoding).toLowerCase()\n loweredCase = true\n }\n }\n}\nBuffer.byteLength = byteLength\n\nfunction slowToString (encoding, start, end) {\n let loweredCase = false\n\n // No need to verify that \"this.length <= MAX_UINT32\" since it's a read-only\n // property of a typed array.\n\n // This behaves neither like String nor Uint8Array in that we set start/end\n // to their upper/lower bounds if the value passed is out of range.\n // undefined is handled specially as per ECMA-262 6th Edition,\n // Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization.\n if (start === undefined || start < 0) {\n start = 0\n }\n // Return early if start > this.length. Done here to prevent potential uint32\n // coercion fail below.\n if (start > this.length) {\n return ''\n }\n\n if (end === undefined || end > this.length) {\n end = this.length\n }\n\n if (end <= 0) {\n return ''\n }\n\n // Force coercion to uint32. This will also coerce falsey/NaN values to 0.\n end >>>= 0\n start >>>= 0\n\n if (end <= start) {\n return ''\n }\n\n if (!encoding) encoding = 'utf8'\n\n while (true) {\n switch (encoding) {\n case 'hex':\n return hexSlice(this, start, end)\n\n case 'utf8':\n case 'utf-8':\n return utf8Slice(this, start, end)\n\n case 'ascii':\n return asciiSlice(this, start, end)\n\n case 'latin1':\n case 'binary':\n return latin1Slice(this, start, end)\n\n case 'base64':\n return base64Slice(this, start, end)\n\n case 'ucs2':\n case 'ucs-2':\n case 'utf16le':\n case 'utf-16le':\n return utf16leSlice(this, start, end)\n\n default:\n if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)\n encoding = (encoding + '').toLowerCase()\n loweredCase = true\n }\n }\n}\n\n// This property is used by `Buffer.isBuffer` (and the `is-buffer` npm package)\n// to detect a Buffer instance. It's not possible to use `instanceof Buffer`\n// reliably in a browserify context because there could be multiple different\n// copies of the 'buffer' package in use. This method works even for Buffer\n// instances that were created from another copy of the `buffer` package.\n// See: https://github.com/feross/buffer/issues/154\nBuffer.prototype._isBuffer = true\n\nfunction swap (b, n, m) {\n const i = b[n]\n b[n] = b[m]\n b[m] = i\n}\n\nBuffer.prototype.swap16 = function swap16 () {\n const len = this.length\n if (len % 2 !== 0) {\n throw new RangeError('Buffer size must be a multiple of 16-bits')\n }\n for (let i = 0; i < len; i += 2) {\n swap(this, i, i + 1)\n }\n return this\n}\n\nBuffer.prototype.swap32 = function swap32 () {\n const len = this.length\n if (len % 4 !== 0) {\n throw new RangeError('Buffer size must be a multiple of 32-bits')\n }\n for (let i = 0; i < len; i += 4) {\n swap(this, i, i + 3)\n swap(this, i + 1, i + 2)\n }\n return this\n}\n\nBuffer.prototype.swap64 = function swap64 () {\n const len = this.length\n if (len % 8 !== 0) {\n throw new RangeError('Buffer size must be a multiple of 64-bits')\n }\n for (let i = 0; i < len; i += 8) {\n swap(this, i, i + 7)\n swap(this, i + 1, i + 6)\n swap(this, i + 2, i + 5)\n swap(this, i + 3, i + 4)\n }\n return this\n}\n\nBuffer.prototype.toString = function toString () {\n const length = this.length\n if (length === 0) return ''\n if (arguments.length === 0) return utf8Slice(this, 0, length)\n return slowToString.apply(this, arguments)\n}\n\nBuffer.prototype.toLocaleString = Buffer.prototype.toString\n\nBuffer.prototype.equals = function equals (b) {\n if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')\n if (this === b) return true\n return Buffer.compare(this, b) === 0\n}\n\nBuffer.prototype.inspect = function inspect () {\n let str = ''\n const max = exports.INSPECT_MAX_BYTES\n str = this.toString('hex', 0, max).replace(/(.{2})/g, '$1 ').trim()\n if (this.length > max) str += ' ... '\n return ''\n}\nif (customInspectSymbol) {\n Buffer.prototype[customInspectSymbol] = Buffer.prototype.inspect\n}\n\nBuffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) {\n if (isInstance(target, Uint8Array)) {\n target = Buffer.from(target, target.offset, target.byteLength)\n }\n if (!Buffer.isBuffer(target)) {\n throw new TypeError(\n 'The \"target\" argument must be one of type Buffer or Uint8Array. ' +\n 'Received type ' + (typeof target)\n )\n }\n\n if (start === undefined) {\n start = 0\n }\n if (end === undefined) {\n end = target ? target.length : 0\n }\n if (thisStart === undefined) {\n thisStart = 0\n }\n if (thisEnd === undefined) {\n thisEnd = this.length\n }\n\n if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) {\n throw new RangeError('out of range index')\n }\n\n if (thisStart >= thisEnd && start >= end) {\n return 0\n }\n if (thisStart >= thisEnd) {\n return -1\n }\n if (start >= end) {\n return 1\n }\n\n start >>>= 0\n end >>>= 0\n thisStart >>>= 0\n thisEnd >>>= 0\n\n if (this === target) return 0\n\n let x = thisEnd - thisStart\n let y = end - start\n const len = Math.min(x, y)\n\n const thisCopy = this.slice(thisStart, thisEnd)\n const targetCopy = target.slice(start, end)\n\n for (let i = 0; i < len; ++i) {\n if (thisCopy[i] !== targetCopy[i]) {\n x = thisCopy[i]\n y = targetCopy[i]\n break\n }\n }\n\n if (x < y) return -1\n if (y < x) return 1\n return 0\n}\n\n// Finds either the first index of `val` in `buffer` at offset >= `byteOffset`,\n// OR the last index of `val` in `buffer` at offset <= `byteOffset`.\n//\n// Arguments:\n// - buffer - a Buffer to search\n// - val - a string, Buffer, or number\n// - byteOffset - an index into `buffer`; will be clamped to an int32\n// - encoding - an optional encoding, relevant is val is a string\n// - dir - true for indexOf, false for lastIndexOf\nfunction bidirectionalIndexOf (buffer, val, byteOffset, encoding, dir) {\n // Empty buffer means no match\n if (buffer.length === 0) return -1\n\n // Normalize byteOffset\n if (typeof byteOffset === 'string') {\n encoding = byteOffset\n byteOffset = 0\n } else if (byteOffset > 0x7fffffff) {\n byteOffset = 0x7fffffff\n } else if (byteOffset < -0x80000000) {\n byteOffset = -0x80000000\n }\n byteOffset = +byteOffset // Coerce to Number.\n if (numberIsNaN(byteOffset)) {\n // byteOffset: it it's undefined, null, NaN, \"foo\", etc, search whole buffer\n byteOffset = dir ? 0 : (buffer.length - 1)\n }\n\n // Normalize byteOffset: negative offsets start from the end of the buffer\n if (byteOffset < 0) byteOffset = buffer.length + byteOffset\n if (byteOffset >= buffer.length) {\n if (dir) return -1\n else byteOffset = buffer.length - 1\n } else if (byteOffset < 0) {\n if (dir) byteOffset = 0\n else return -1\n }\n\n // Normalize val\n if (typeof val === 'string') {\n val = Buffer.from(val, encoding)\n }\n\n // Finally, search either indexOf (if dir is true) or lastIndexOf\n if (Buffer.isBuffer(val)) {\n // Special case: looking for empty string/buffer always fails\n if (val.length === 0) {\n return -1\n }\n return arrayIndexOf(buffer, val, byteOffset, encoding, dir)\n } else if (typeof val === 'number') {\n val = val & 0xFF // Search for a byte value [0-255]\n if (typeof Uint8Array.prototype.indexOf === 'function') {\n if (dir) {\n return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset)\n } else {\n return Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset)\n }\n }\n return arrayIndexOf(buffer, [val], byteOffset, encoding, dir)\n }\n\n throw new TypeError('val must be string, number or Buffer')\n}\n\nfunction arrayIndexOf (arr, val, byteOffset, encoding, dir) {\n let indexSize = 1\n let arrLength = arr.length\n let valLength = val.length\n\n if (encoding !== undefined) {\n encoding = String(encoding).toLowerCase()\n if (encoding === 'ucs2' || encoding === 'ucs-2' ||\n encoding === 'utf16le' || encoding === 'utf-16le') {\n if (arr.length < 2 || val.length < 2) {\n return -1\n }\n indexSize = 2\n arrLength /= 2\n valLength /= 2\n byteOffset /= 2\n }\n }\n\n function read (buf, i) {\n if (indexSize === 1) {\n return buf[i]\n } else {\n return buf.readUInt16BE(i * indexSize)\n }\n }\n\n let i\n if (dir) {\n let foundIndex = -1\n for (i = byteOffset; i < arrLength; i++) {\n if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) {\n if (foundIndex === -1) foundIndex = i\n if (i - foundIndex + 1 === valLength) return foundIndex * indexSize\n } else {\n if (foundIndex !== -1) i -= i - foundIndex\n foundIndex = -1\n }\n }\n } else {\n if (byteOffset + valLength > arrLength) byteOffset = arrLength - valLength\n for (i = byteOffset; i >= 0; i--) {\n let found = true\n for (let j = 0; j < valLength; j++) {\n if (read(arr, i + j) !== read(val, j)) {\n found = false\n break\n }\n }\n if (found) return i\n }\n }\n\n return -1\n}\n\nBuffer.prototype.includes = function includes (val, byteOffset, encoding) {\n return this.indexOf(val, byteOffset, encoding) !== -1\n}\n\nBuffer.prototype.indexOf = function indexOf (val, byteOffset, encoding) {\n return bidirectionalIndexOf(this, val, byteOffset, encoding, true)\n}\n\nBuffer.prototype.lastIndexOf = function lastIndexOf (val, byteOffset, encoding) {\n return bidirectionalIndexOf(this, val, byteOffset, encoding, false)\n}\n\nfunction hexWrite (buf, string, offset, length) {\n offset = Number(offset) || 0\n const remaining = buf.length - offset\n if (!length) {\n length = remaining\n } else {\n length = Number(length)\n if (length > remaining) {\n length = remaining\n }\n }\n\n const strLen = string.length\n\n if (length > strLen / 2) {\n length = strLen / 2\n }\n let i\n for (i = 0; i < length; ++i) {\n const parsed = parseInt(string.substr(i * 2, 2), 16)\n if (numberIsNaN(parsed)) return i\n buf[offset + i] = parsed\n }\n return i\n}\n\nfunction utf8Write (buf, string, offset, length) {\n return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)\n}\n\nfunction asciiWrite (buf, string, offset, length) {\n return blitBuffer(asciiToBytes(string), buf, offset, length)\n}\n\nfunction base64Write (buf, string, offset, length) {\n return blitBuffer(base64ToBytes(string), buf, offset, length)\n}\n\nfunction ucs2Write (buf, string, offset, length) {\n return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length)\n}\n\nBuffer.prototype.write = function write (string, offset, length, encoding) {\n // Buffer#write(string)\n if (offset === undefined) {\n encoding = 'utf8'\n length = this.length\n offset = 0\n // Buffer#write(string, encoding)\n } else if (length === undefined && typeof offset === 'string') {\n encoding = offset\n length = this.length\n offset = 0\n // Buffer#write(string, offset[, length][, encoding])\n } else if (isFinite(offset)) {\n offset = offset >>> 0\n if (isFinite(length)) {\n length = length >>> 0\n if (encoding === undefined) encoding = 'utf8'\n } else {\n encoding = length\n length = undefined\n }\n } else {\n throw new Error(\n 'Buffer.write(string, encoding, offset[, length]) is no longer supported'\n )\n }\n\n const remaining = this.length - offset\n if (length === undefined || length > remaining) length = remaining\n\n if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) {\n throw new RangeError('Attempt to write outside buffer bounds')\n }\n\n if (!encoding) encoding = 'utf8'\n\n let loweredCase = false\n for (;;) {\n switch (encoding) {\n case 'hex':\n return hexWrite(this, string, offset, length)\n\n case 'utf8':\n case 'utf-8':\n return utf8Write(this, string, offset, length)\n\n case 'ascii':\n case 'latin1':\n case 'binary':\n return asciiWrite(this, string, offset, length)\n\n case 'base64':\n // Warning: maxLength not taken into account in base64Write\n return base64Write(this, string, offset, length)\n\n case 'ucs2':\n case 'ucs-2':\n case 'utf16le':\n case 'utf-16le':\n return ucs2Write(this, string, offset, length)\n\n default:\n if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)\n encoding = ('' + encoding).toLowerCase()\n loweredCase = true\n }\n }\n}\n\nBuffer.prototype.toJSON = function toJSON () {\n return {\n type: 'Buffer',\n data: Array.prototype.slice.call(this._arr || this, 0)\n }\n}\n\nfunction base64Slice (buf, start, end) {\n if (start === 0 && end === buf.length) {\n return base64.fromByteArray(buf)\n } else {\n return base64.fromByteArray(buf.slice(start, end))\n }\n}\n\nfunction utf8Slice (buf, start, end) {\n end = Math.min(buf.length, end)\n const res = []\n\n let i = start\n while (i < end) {\n const firstByte = buf[i]\n let codePoint = null\n let bytesPerSequence = (firstByte > 0xEF)\n ? 4\n : (firstByte > 0xDF)\n ? 3\n : (firstByte > 0xBF)\n ? 2\n : 1\n\n if (i + bytesPerSequence <= end) {\n let secondByte, thirdByte, fourthByte, tempCodePoint\n\n switch (bytesPerSequence) {\n case 1:\n if (firstByte < 0x80) {\n codePoint = firstByte\n }\n break\n case 2:\n secondByte = buf[i + 1]\n if ((secondByte & 0xC0) === 0x80) {\n tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F)\n if (tempCodePoint > 0x7F) {\n codePoint = tempCodePoint\n }\n }\n break\n case 3:\n secondByte = buf[i + 1]\n thirdByte = buf[i + 2]\n if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) {\n tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F)\n if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) {\n codePoint = tempCodePoint\n }\n }\n break\n case 4:\n secondByte = buf[i + 1]\n thirdByte = buf[i + 2]\n fourthByte = buf[i + 3]\n if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) {\n tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F)\n if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) {\n codePoint = tempCodePoint\n }\n }\n }\n }\n\n if (codePoint === null) {\n // we did not generate a valid codePoint so insert a\n // replacement char (U+FFFD) and advance only 1 byte\n codePoint = 0xFFFD\n bytesPerSequence = 1\n } else if (codePoint > 0xFFFF) {\n // encode to utf16 (surrogate pair dance)\n codePoint -= 0x10000\n res.push(codePoint >>> 10 & 0x3FF | 0xD800)\n codePoint = 0xDC00 | codePoint & 0x3FF\n }\n\n res.push(codePoint)\n i += bytesPerSequence\n }\n\n return decodeCodePointsArray(res)\n}\n\n// Based on http://stackoverflow.com/a/22747272/680742, the browser with\n// the lowest limit is Chrome, with 0x10000 args.\n// We go 1 magnitude less, for safety\nconst MAX_ARGUMENTS_LENGTH = 0x1000\n\nfunction decodeCodePointsArray (codePoints) {\n const len = codePoints.length\n if (len <= MAX_ARGUMENTS_LENGTH) {\n return String.fromCharCode.apply(String, codePoints) // avoid extra slice()\n }\n\n // Decode in chunks to avoid \"call stack size exceeded\".\n let res = ''\n let i = 0\n while (i < len) {\n res += String.fromCharCode.apply(\n String,\n codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH)\n )\n }\n return res\n}\n\nfunction asciiSlice (buf, start, end) {\n let ret = ''\n end = Math.min(buf.length, end)\n\n for (let i = start; i < end; ++i) {\n ret += String.fromCharCode(buf[i] & 0x7F)\n }\n return ret\n}\n\nfunction latin1Slice (buf, start, end) {\n let ret = ''\n end = Math.min(buf.length, end)\n\n for (let i = start; i < end; ++i) {\n ret += String.fromCharCode(buf[i])\n }\n return ret\n}\n\nfunction hexSlice (buf, start, end) {\n const len = buf.length\n\n if (!start || start < 0) start = 0\n if (!end || end < 0 || end > len) end = len\n\n let out = ''\n for (let i = start; i < end; ++i) {\n out += hexSliceLookupTable[buf[i]]\n }\n return out\n}\n\nfunction utf16leSlice (buf, start, end) {\n const bytes = buf.slice(start, end)\n let res = ''\n // If bytes.length is odd, the last 8 bits must be ignored (same as node.js)\n for (let i = 0; i < bytes.length - 1; i += 2) {\n res += String.fromCharCode(bytes[i] + (bytes[i + 1] * 256))\n }\n return res\n}\n\nBuffer.prototype.slice = function slice (start, end) {\n const len = this.length\n start = ~~start\n end = end === undefined ? len : ~~end\n\n if (start < 0) {\n start += len\n if (start < 0) start = 0\n } else if (start > len) {\n start = len\n }\n\n if (end < 0) {\n end += len\n if (end < 0) end = 0\n } else if (end > len) {\n end = len\n }\n\n if (end < start) end = start\n\n const newBuf = this.subarray(start, end)\n // Return an augmented `Uint8Array` instance\n Object.setPrototypeOf(newBuf, Buffer.prototype)\n\n return newBuf\n}\n\n/*\n * Need to make sure that buffer isn't trying to write out of bounds.\n */\nfunction checkOffset (offset, ext, length) {\n if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint')\n if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length')\n}\n\nBuffer.prototype.readUintLE =\nBuffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) {\n offset = offset >>> 0\n byteLength = byteLength >>> 0\n if (!noAssert) checkOffset(offset, byteLength, this.length)\n\n let val = this[offset]\n let mul = 1\n let i = 0\n while (++i < byteLength && (mul *= 0x100)) {\n val += this[offset + i] * mul\n }\n\n return val\n}\n\nBuffer.prototype.readUintBE =\nBuffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) {\n offset = offset >>> 0\n byteLength = byteLength >>> 0\n if (!noAssert) {\n checkOffset(offset, byteLength, this.length)\n }\n\n let val = this[offset + --byteLength]\n let mul = 1\n while (byteLength > 0 && (mul *= 0x100)) {\n val += this[offset + --byteLength] * mul\n }\n\n return val\n}\n\nBuffer.prototype.readUint8 =\nBuffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) {\n offset = offset >>> 0\n if (!noAssert) checkOffset(offset, 1, this.length)\n return this[offset]\n}\n\nBuffer.prototype.readUint16LE =\nBuffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) {\n offset = offset >>> 0\n if (!noAssert) checkOffset(offset, 2, this.length)\n return this[offset] | (this[offset + 1] << 8)\n}\n\nBuffer.prototype.readUint16BE =\nBuffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) {\n offset = offset >>> 0\n if (!noAssert) checkOffset(offset, 2, this.length)\n return (this[offset] << 8) | this[offset + 1]\n}\n\nBuffer.prototype.readUint32LE =\nBuffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) {\n offset = offset >>> 0\n if (!noAssert) checkOffset(offset, 4, this.length)\n\n return ((this[offset]) |\n (this[offset + 1] << 8) |\n (this[offset + 2] << 16)) +\n (this[offset + 3] * 0x1000000)\n}\n\nBuffer.prototype.readUint32BE =\nBuffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) {\n offset = offset >>> 0\n if (!noAssert) checkOffset(offset, 4, this.length)\n\n return (this[offset] * 0x1000000) +\n ((this[offset + 1] << 16) |\n (this[offset + 2] << 8) |\n this[offset + 3])\n}\n\nBuffer.prototype.readBigUInt64LE = defineBigIntMethod(function readBigUInt64LE (offset) {\n offset = offset >>> 0\n validateNumber(offset, 'offset')\n const first = this[offset]\n const last = this[offset + 7]\n if (first === undefined || last === undefined) {\n boundsError(offset, this.length - 8)\n }\n\n const lo = first +\n this[++offset] * 2 ** 8 +\n this[++offset] * 2 ** 16 +\n this[++offset] * 2 ** 24\n\n const hi = this[++offset] +\n this[++offset] * 2 ** 8 +\n this[++offset] * 2 ** 16 +\n last * 2 ** 24\n\n return BigInt(lo) + (BigInt(hi) << BigInt(32))\n})\n\nBuffer.prototype.readBigUInt64BE = defineBigIntMethod(function readBigUInt64BE (offset) {\n offset = offset >>> 0\n validateNumber(offset, 'offset')\n const first = this[offset]\n const last = this[offset + 7]\n if (first === undefined || last === undefined) {\n boundsError(offset, this.length - 8)\n }\n\n const hi = first * 2 ** 24 +\n this[++offset] * 2 ** 16 +\n this[++offset] * 2 ** 8 +\n this[++offset]\n\n const lo = this[++offset] * 2 ** 24 +\n this[++offset] * 2 ** 16 +\n this[++offset] * 2 ** 8 +\n last\n\n return (BigInt(hi) << BigInt(32)) + BigInt(lo)\n})\n\nBuffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) {\n offset = offset >>> 0\n byteLength = byteLength >>> 0\n if (!noAssert) checkOffset(offset, byteLength, this.length)\n\n let val = this[offset]\n let mul = 1\n let i = 0\n while (++i < byteLength && (mul *= 0x100)) {\n val += this[offset + i] * mul\n }\n mul *= 0x80\n\n if (val >= mul) val -= Math.pow(2, 8 * byteLength)\n\n return val\n}\n\nBuffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) {\n offset = offset >>> 0\n byteLength = byteLength >>> 0\n if (!noAssert) checkOffset(offset, byteLength, this.length)\n\n let i = byteLength\n let mul = 1\n let val = this[offset + --i]\n while (i > 0 && (mul *= 0x100)) {\n val += this[offset + --i] * mul\n }\n mul *= 0x80\n\n if (val >= mul) val -= Math.pow(2, 8 * byteLength)\n\n return val\n}\n\nBuffer.prototype.readInt8 = function readInt8 (offset, noAssert) {\n offset = offset >>> 0\n if (!noAssert) checkOffset(offset, 1, this.length)\n if (!(this[offset] & 0x80)) return (this[offset])\n return ((0xff - this[offset] + 1) * -1)\n}\n\nBuffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) {\n offset = offset >>> 0\n if (!noAssert) checkOffset(offset, 2, this.length)\n const val = this[offset] | (this[offset + 1] << 8)\n return (val & 0x8000) ? val | 0xFFFF0000 : val\n}\n\nBuffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) {\n offset = offset >>> 0\n if (!noAssert) checkOffset(offset, 2, this.length)\n const val = this[offset + 1] | (this[offset] << 8)\n return (val & 0x8000) ? val | 0xFFFF0000 : val\n}\n\nBuffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) {\n offset = offset >>> 0\n if (!noAssert) checkOffset(offset, 4, this.length)\n\n return (this[offset]) |\n (this[offset + 1] << 8) |\n (this[offset + 2] << 16) |\n (this[offset + 3] << 24)\n}\n\nBuffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) {\n offset = offset >>> 0\n if (!noAssert) checkOffset(offset, 4, this.length)\n\n return (this[offset] << 24) |\n (this[offset + 1] << 16) |\n (this[offset + 2] << 8) |\n (this[offset + 3])\n}\n\nBuffer.prototype.readBigInt64LE = defineBigIntMethod(function readBigInt64LE (offset) {\n offset = offset >>> 0\n validateNumber(offset, 'offset')\n const first = this[offset]\n const last = this[offset + 7]\n if (first === undefined || last === undefined) {\n boundsError(offset, this.length - 8)\n }\n\n const val = this[offset + 4] +\n this[offset + 5] * 2 ** 8 +\n this[offset + 6] * 2 ** 16 +\n (last << 24) // Overflow\n\n return (BigInt(val) << BigInt(32)) +\n BigInt(first +\n this[++offset] * 2 ** 8 +\n this[++offset] * 2 ** 16 +\n this[++offset] * 2 ** 24)\n})\n\nBuffer.prototype.readBigInt64BE = defineBigIntMethod(function readBigInt64BE (offset) {\n offset = offset >>> 0\n validateNumber(offset, 'offset')\n const first = this[offset]\n const last = this[offset + 7]\n if (first === undefined || last === undefined) {\n boundsError(offset, this.length - 8)\n }\n\n const val = (first << 24) + // Overflow\n this[++offset] * 2 ** 16 +\n this[++offset] * 2 ** 8 +\n this[++offset]\n\n return (BigInt(val) << BigInt(32)) +\n BigInt(this[++offset] * 2 ** 24 +\n this[++offset] * 2 ** 16 +\n this[++offset] * 2 ** 8 +\n last)\n})\n\nBuffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) {\n offset = offset >>> 0\n if (!noAssert) checkOffset(offset, 4, this.length)\n return ieee754.read(this, offset, true, 23, 4)\n}\n\nBuffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) {\n offset = offset >>> 0\n if (!noAssert) checkOffset(offset, 4, this.length)\n return ieee754.read(this, offset, false, 23, 4)\n}\n\nBuffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) {\n offset = offset >>> 0\n if (!noAssert) checkOffset(offset, 8, this.length)\n return ieee754.read(this, offset, true, 52, 8)\n}\n\nBuffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) {\n offset = offset >>> 0\n if (!noAssert) checkOffset(offset, 8, this.length)\n return ieee754.read(this, offset, false, 52, 8)\n}\n\nfunction checkInt (buf, value, offset, ext, max, min) {\n if (!Buffer.isBuffer(buf)) throw new TypeError('\"buffer\" argument must be a Buffer instance')\n if (value > max || value < min) throw new RangeError('\"value\" argument is out of bounds')\n if (offset + ext > buf.length) throw new RangeError('Index out of range')\n}\n\nBuffer.prototype.writeUintLE =\nBuffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) {\n value = +value\n offset = offset >>> 0\n byteLength = byteLength >>> 0\n if (!noAssert) {\n const maxBytes = Math.pow(2, 8 * byteLength) - 1\n checkInt(this, value, offset, byteLength, maxBytes, 0)\n }\n\n let mul = 1\n let i = 0\n this[offset] = value & 0xFF\n while (++i < byteLength && (mul *= 0x100)) {\n this[offset + i] = (value / mul) & 0xFF\n }\n\n return offset + byteLength\n}\n\nBuffer.prototype.writeUintBE =\nBuffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) {\n value = +value\n offset = offset >>> 0\n byteLength = byteLength >>> 0\n if (!noAssert) {\n const maxBytes = Math.pow(2, 8 * byteLength) - 1\n checkInt(this, value, offset, byteLength, maxBytes, 0)\n }\n\n let i = byteLength - 1\n let mul = 1\n this[offset + i] = value & 0xFF\n while (--i >= 0 && (mul *= 0x100)) {\n this[offset + i] = (value / mul) & 0xFF\n }\n\n return offset + byteLength\n}\n\nBuffer.prototype.writeUint8 =\nBuffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) {\n value = +value\n offset = offset >>> 0\n if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0)\n this[offset] = (value & 0xff)\n return offset + 1\n}\n\nBuffer.prototype.writeUint16LE =\nBuffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) {\n value = +value\n offset = offset >>> 0\n if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)\n this[offset] = (value & 0xff)\n this[offset + 1] = (value >>> 8)\n return offset + 2\n}\n\nBuffer.prototype.writeUint16BE =\nBuffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) {\n value = +value\n offset = offset >>> 0\n if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)\n this[offset] = (value >>> 8)\n this[offset + 1] = (value & 0xff)\n return offset + 2\n}\n\nBuffer.prototype.writeUint32LE =\nBuffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) {\n value = +value\n offset = offset >>> 0\n if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)\n this[offset + 3] = (value >>> 24)\n this[offset + 2] = (value >>> 16)\n this[offset + 1] = (value >>> 8)\n this[offset] = (value & 0xff)\n return offset + 4\n}\n\nBuffer.prototype.writeUint32BE =\nBuffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) {\n value = +value\n offset = offset >>> 0\n if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)\n this[offset] = (value >>> 24)\n this[offset + 1] = (value >>> 16)\n this[offset + 2] = (value >>> 8)\n this[offset + 3] = (value & 0xff)\n return offset + 4\n}\n\nfunction wrtBigUInt64LE (buf, value, offset, min, max) {\n checkIntBI(value, min, max, buf, offset, 7)\n\n let lo = Number(value & BigInt(0xffffffff))\n buf[offset++] = lo\n lo = lo >> 8\n buf[offset++] = lo\n lo = lo >> 8\n buf[offset++] = lo\n lo = lo >> 8\n buf[offset++] = lo\n let hi = Number(value >> BigInt(32) & BigInt(0xffffffff))\n buf[offset++] = hi\n hi = hi >> 8\n buf[offset++] = hi\n hi = hi >> 8\n buf[offset++] = hi\n hi = hi >> 8\n buf[offset++] = hi\n return offset\n}\n\nfunction wrtBigUInt64BE (buf, value, offset, min, max) {\n checkIntBI(value, min, max, buf, offset, 7)\n\n let lo = Number(value & BigInt(0xffffffff))\n buf[offset + 7] = lo\n lo = lo >> 8\n buf[offset + 6] = lo\n lo = lo >> 8\n buf[offset + 5] = lo\n lo = lo >> 8\n buf[offset + 4] = lo\n let hi = Number(value >> BigInt(32) & BigInt(0xffffffff))\n buf[offset + 3] = hi\n hi = hi >> 8\n buf[offset + 2] = hi\n hi = hi >> 8\n buf[offset + 1] = hi\n hi = hi >> 8\n buf[offset] = hi\n return offset + 8\n}\n\nBuffer.prototype.writeBigUInt64LE = defineBigIntMethod(function writeBigUInt64LE (value, offset = 0) {\n return wrtBigUInt64LE(this, value, offset, BigInt(0), BigInt('0xffffffffffffffff'))\n})\n\nBuffer.prototype.writeBigUInt64BE = defineBigIntMethod(function writeBigUInt64BE (value, offset = 0) {\n return wrtBigUInt64BE(this, value, offset, BigInt(0), BigInt('0xffffffffffffffff'))\n})\n\nBuffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) {\n value = +value\n offset = offset >>> 0\n if (!noAssert) {\n const limit = Math.pow(2, (8 * byteLength) - 1)\n\n checkInt(this, value, offset, byteLength, limit - 1, -limit)\n }\n\n let i = 0\n let mul = 1\n let sub = 0\n this[offset] = value & 0xFF\n while (++i < byteLength && (mul *= 0x100)) {\n if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) {\n sub = 1\n }\n this[offset + i] = ((value / mul) >> 0) - sub & 0xFF\n }\n\n return offset + byteLength\n}\n\nBuffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) {\n value = +value\n offset = offset >>> 0\n if (!noAssert) {\n const limit = Math.pow(2, (8 * byteLength) - 1)\n\n checkInt(this, value, offset, byteLength, limit - 1, -limit)\n }\n\n let i = byteLength - 1\n let mul = 1\n let sub = 0\n this[offset + i] = value & 0xFF\n while (--i >= 0 && (mul *= 0x100)) {\n if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) {\n sub = 1\n }\n this[offset + i] = ((value / mul) >> 0) - sub & 0xFF\n }\n\n return offset + byteLength\n}\n\nBuffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) {\n value = +value\n offset = offset >>> 0\n if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80)\n if (value < 0) value = 0xff + value + 1\n this[offset] = (value & 0xff)\n return offset + 1\n}\n\nBuffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) {\n value = +value\n offset = offset >>> 0\n if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)\n this[offset] = (value & 0xff)\n this[offset + 1] = (value >>> 8)\n return offset + 2\n}\n\nBuffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) {\n value = +value\n offset = offset >>> 0\n if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)\n this[offset] = (value >>> 8)\n this[offset + 1] = (value & 0xff)\n return offset + 2\n}\n\nBuffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) {\n value = +value\n offset = offset >>> 0\n if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)\n this[offset] = (value & 0xff)\n this[offset + 1] = (value >>> 8)\n this[offset + 2] = (value >>> 16)\n this[offset + 3] = (value >>> 24)\n return offset + 4\n}\n\nBuffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) {\n value = +value\n offset = offset >>> 0\n if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)\n if (value < 0) value = 0xffffffff + value + 1\n this[offset] = (value >>> 24)\n this[offset + 1] = (value >>> 16)\n this[offset + 2] = (value >>> 8)\n this[offset + 3] = (value & 0xff)\n return offset + 4\n}\n\nBuffer.prototype.writeBigInt64LE = defineBigIntMethod(function writeBigInt64LE (value, offset = 0) {\n return wrtBigUInt64LE(this, value, offset, -BigInt('0x8000000000000000'), BigInt('0x7fffffffffffffff'))\n})\n\nBuffer.prototype.writeBigInt64BE = defineBigIntMethod(function writeBigInt64BE (value, offset = 0) {\n return wrtBigUInt64BE(this, value, offset, -BigInt('0x8000000000000000'), BigInt('0x7fffffffffffffff'))\n})\n\nfunction checkIEEE754 (buf, value, offset, ext, max, min) {\n if (offset + ext > buf.length) throw new RangeError('Index out of range')\n if (offset < 0) throw new RangeError('Index out of range')\n}\n\nfunction writeFloat (buf, value, offset, littleEndian, noAssert) {\n value = +value\n offset = offset >>> 0\n if (!noAssert) {\n checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38)\n }\n ieee754.write(buf, value, offset, littleEndian, 23, 4)\n return offset + 4\n}\n\nBuffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) {\n return writeFloat(this, value, offset, true, noAssert)\n}\n\nBuffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) {\n return writeFloat(this, value, offset, false, noAssert)\n}\n\nfunction writeDouble (buf, value, offset, littleEndian, noAssert) {\n value = +value\n offset = offset >>> 0\n if (!noAssert) {\n checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308)\n }\n ieee754.write(buf, value, offset, littleEndian, 52, 8)\n return offset + 8\n}\n\nBuffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) {\n return writeDouble(this, value, offset, true, noAssert)\n}\n\nBuffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) {\n return writeDouble(this, value, offset, false, noAssert)\n}\n\n// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)\nBuffer.prototype.copy = function copy (target, targetStart, start, end) {\n if (!Buffer.isBuffer(target)) throw new TypeError('argument should be a Buffer')\n if (!start) start = 0\n if (!end && end !== 0) end = this.length\n if (targetStart >= target.length) targetStart = target.length\n if (!targetStart) targetStart = 0\n if (end > 0 && end < start) end = start\n\n // Copy 0 bytes; we're done\n if (end === start) return 0\n if (target.length === 0 || this.length === 0) return 0\n\n // Fatal error conditions\n if (targetStart < 0) {\n throw new RangeError('targetStart out of bounds')\n }\n if (start < 0 || start >= this.length) throw new RangeError('Index out of range')\n if (end < 0) throw new RangeError('sourceEnd out of bounds')\n\n // Are we oob?\n if (end > this.length) end = this.length\n if (target.length - targetStart < end - start) {\n end = target.length - targetStart + start\n }\n\n const len = end - start\n\n if (this === target && typeof Uint8Array.prototype.copyWithin === 'function') {\n // Use built-in when available, missing from IE11\n this.copyWithin(targetStart, start, end)\n } else {\n Uint8Array.prototype.set.call(\n target,\n this.subarray(start, end),\n targetStart\n )\n }\n\n return len\n}\n\n// Usage:\n// buffer.fill(number[, offset[, end]])\n// buffer.fill(buffer[, offset[, end]])\n// buffer.fill(string[, offset[, end]][, encoding])\nBuffer.prototype.fill = function fill (val, start, end, encoding) {\n // Handle string cases:\n if (typeof val === 'string') {\n if (typeof start === 'string') {\n encoding = start\n start = 0\n end = this.length\n } else if (typeof end === 'string') {\n encoding = end\n end = this.length\n }\n if (encoding !== undefined && typeof encoding !== 'string') {\n throw new TypeError('encoding must be a string')\n }\n if (typeof encoding === 'string' && !Buffer.isEncoding(encoding)) {\n throw new TypeError('Unknown encoding: ' + encoding)\n }\n if (val.length === 1) {\n const code = val.charCodeAt(0)\n if ((encoding === 'utf8' && code < 128) ||\n encoding === 'latin1') {\n // Fast path: If `val` fits into a single byte, use that numeric value.\n val = code\n }\n }\n } else if (typeof val === 'number') {\n val = val & 255\n } else if (typeof val === 'boolean') {\n val = Number(val)\n }\n\n // Invalid ranges are not set to a default, so can range check early.\n if (start < 0 || this.length < start || this.length < end) {\n throw new RangeError('Out of range index')\n }\n\n if (end <= start) {\n return this\n }\n\n start = start >>> 0\n end = end === undefined ? this.length : end >>> 0\n\n if (!val) val = 0\n\n let i\n if (typeof val === 'number') {\n for (i = start; i < end; ++i) {\n this[i] = val\n }\n } else {\n const bytes = Buffer.isBuffer(val)\n ? val\n : Buffer.from(val, encoding)\n const len = bytes.length\n if (len === 0) {\n throw new TypeError('The value \"' + val +\n '\" is invalid for argument \"value\"')\n }\n for (i = 0; i < end - start; ++i) {\n this[i + start] = bytes[i % len]\n }\n }\n\n return this\n}\n\n// CUSTOM ERRORS\n// =============\n\n// Simplified versions from Node, changed for Buffer-only usage\nconst errors = {}\nfunction E (sym, getMessage, Base) {\n errors[sym] = class NodeError extends Base {\n constructor () {\n super()\n\n Object.defineProperty(this, 'message', {\n value: getMessage.apply(this, arguments),\n writable: true,\n configurable: true\n })\n\n // Add the error code to the name to include it in the stack trace.\n this.name = `${this.name} [${sym}]`\n // Access the stack to generate the error message including the error code\n // from the name.\n this.stack // eslint-disable-line no-unused-expressions\n // Reset the name to the actual name.\n delete this.name\n }\n\n get code () {\n return sym\n }\n\n set code (value) {\n Object.defineProperty(this, 'code', {\n configurable: true,\n enumerable: true,\n value,\n writable: true\n })\n }\n\n toString () {\n return `${this.name} [${sym}]: ${this.message}`\n }\n }\n}\n\nE('ERR_BUFFER_OUT_OF_BOUNDS',\n function (name) {\n if (name) {\n return `${name} is outside of buffer bounds`\n }\n\n return 'Attempt to access memory outside buffer bounds'\n }, RangeError)\nE('ERR_INVALID_ARG_TYPE',\n function (name, actual) {\n return `The \"${name}\" argument must be of type number. Received type ${typeof actual}`\n }, TypeError)\nE('ERR_OUT_OF_RANGE',\n function (str, range, input) {\n let msg = `The value of \"${str}\" is out of range.`\n let received = input\n if (Number.isInteger(input) && Math.abs(input) > 2 ** 32) {\n received = addNumericalSeparator(String(input))\n } else if (typeof input === 'bigint') {\n received = String(input)\n if (input > BigInt(2) ** BigInt(32) || input < -(BigInt(2) ** BigInt(32))) {\n received = addNumericalSeparator(received)\n }\n received += 'n'\n }\n msg += ` It must be ${range}. Received ${received}`\n return msg\n }, RangeError)\n\nfunction addNumericalSeparator (val) {\n let res = ''\n let i = val.length\n const start = val[0] === '-' ? 1 : 0\n for (; i >= start + 4; i -= 3) {\n res = `_${val.slice(i - 3, i)}${res}`\n }\n return `${val.slice(0, i)}${res}`\n}\n\n// CHECK FUNCTIONS\n// ===============\n\nfunction checkBounds (buf, offset, byteLength) {\n validateNumber(offset, 'offset')\n if (buf[offset] === undefined || buf[offset + byteLength] === undefined) {\n boundsError(offset, buf.length - (byteLength + 1))\n }\n}\n\nfunction checkIntBI (value, min, max, buf, offset, byteLength) {\n if (value > max || value < min) {\n const n = typeof min === 'bigint' ? 'n' : ''\n let range\n if (byteLength > 3) {\n if (min === 0 || min === BigInt(0)) {\n range = `>= 0${n} and < 2${n} ** ${(byteLength + 1) * 8}${n}`\n } else {\n range = `>= -(2${n} ** ${(byteLength + 1) * 8 - 1}${n}) and < 2 ** ` +\n `${(byteLength + 1) * 8 - 1}${n}`\n }\n } else {\n range = `>= ${min}${n} and <= ${max}${n}`\n }\n throw new errors.ERR_OUT_OF_RANGE('value', range, value)\n }\n checkBounds(buf, offset, byteLength)\n}\n\nfunction validateNumber (value, name) {\n if (typeof value !== 'number') {\n throw new errors.ERR_INVALID_ARG_TYPE(name, 'number', value)\n }\n}\n\nfunction boundsError (value, length, type) {\n if (Math.floor(value) !== value) {\n validateNumber(value, type)\n throw new errors.ERR_OUT_OF_RANGE(type || 'offset', 'an integer', value)\n }\n\n if (length < 0) {\n throw new errors.ERR_BUFFER_OUT_OF_BOUNDS()\n }\n\n throw new errors.ERR_OUT_OF_RANGE(type || 'offset',\n `>= ${type ? 1 : 0} and <= ${length}`,\n value)\n}\n\n// HELPER FUNCTIONS\n// ================\n\nconst INVALID_BASE64_RE = /[^+/0-9A-Za-z-_]/g\n\nfunction base64clean (str) {\n // Node takes equal signs as end of the Base64 encoding\n str = str.split('=')[0]\n // Node strips out invalid characters like \\n and \\t from the string, base64-js does not\n str = str.trim().replace(INVALID_BASE64_RE, '')\n // Node converts strings with length < 2 to ''\n if (str.length < 2) return ''\n // Node allows for non-padded base64 strings (missing trailing ===), base64-js does not\n while (str.length % 4 !== 0) {\n str = str + '='\n }\n return str\n}\n\nfunction utf8ToBytes (string, units) {\n units = units || Infinity\n let codePoint\n const length = string.length\n let leadSurrogate = null\n const bytes = []\n\n for (let i = 0; i < length; ++i) {\n codePoint = string.charCodeAt(i)\n\n // is surrogate component\n if (codePoint > 0xD7FF && codePoint < 0xE000) {\n // last char was a lead\n if (!leadSurrogate) {\n // no lead yet\n if (codePoint > 0xDBFF) {\n // unexpected trail\n if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)\n continue\n } else if (i + 1 === length) {\n // unpaired lead\n if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)\n continue\n }\n\n // valid lead\n leadSurrogate = codePoint\n\n continue\n }\n\n // 2 leads in a row\n if (codePoint < 0xDC00) {\n if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)\n leadSurrogate = codePoint\n continue\n }\n\n // valid surrogate pair\n codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000\n } else if (leadSurrogate) {\n // valid bmp char, but last char was a lead\n if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)\n }\n\n leadSurrogate = null\n\n // encode utf8\n if (codePoint < 0x80) {\n if ((units -= 1) < 0) break\n bytes.push(codePoint)\n } else if (codePoint < 0x800) {\n if ((units -= 2) < 0) break\n bytes.push(\n codePoint >> 0x6 | 0xC0,\n codePoint & 0x3F | 0x80\n )\n } else if (codePoint < 0x10000) {\n if ((units -= 3) < 0) break\n bytes.push(\n codePoint >> 0xC | 0xE0,\n codePoint >> 0x6 & 0x3F | 0x80,\n codePoint & 0x3F | 0x80\n )\n } else if (codePoint < 0x110000) {\n if ((units -= 4) < 0) break\n bytes.push(\n codePoint >> 0x12 | 0xF0,\n codePoint >> 0xC & 0x3F | 0x80,\n codePoint >> 0x6 & 0x3F | 0x80,\n codePoint & 0x3F | 0x80\n )\n } else {\n throw new Error('Invalid code point')\n }\n }\n\n return bytes\n}\n\nfunction asciiToBytes (str) {\n const byteArray = []\n for (let i = 0; i < str.length; ++i) {\n // Node's code seems to be doing this and not & 0x7F..\n byteArray.push(str.charCodeAt(i) & 0xFF)\n }\n return byteArray\n}\n\nfunction utf16leToBytes (str, units) {\n let c, hi, lo\n const byteArray = []\n for (let i = 0; i < str.length; ++i) {\n if ((units -= 2) < 0) break\n\n c = str.charCodeAt(i)\n hi = c >> 8\n lo = c % 256\n byteArray.push(lo)\n byteArray.push(hi)\n }\n\n return byteArray\n}\n\nfunction base64ToBytes (str) {\n return base64.toByteArray(base64clean(str))\n}\n\nfunction blitBuffer (src, dst, offset, length) {\n let i\n for (i = 0; i < length; ++i) {\n if ((i + offset >= dst.length) || (i >= src.length)) break\n dst[i + offset] = src[i]\n }\n return i\n}\n\n// ArrayBuffer or Uint8Array objects from other contexts (i.e. iframes) do not pass\n// the `instanceof` check but they should be treated as of that type.\n// See: https://github.com/feross/buffer/issues/166\nfunction isInstance (obj, type) {\n return obj instanceof type ||\n (obj != null && obj.constructor != null && obj.constructor.name != null &&\n obj.constructor.name === type.name)\n}\nfunction numberIsNaN (obj) {\n // For IE11 support\n return obj !== obj // eslint-disable-line no-self-compare\n}\n\n// Create lookup table for `toString('hex')`\n// See: https://github.com/feross/buffer/issues/219\nconst hexSliceLookupTable = (function () {\n const alphabet = '0123456789abcdef'\n const table = new Array(256)\n for (let i = 0; i < 16; ++i) {\n const i16 = i * 16\n for (let j = 0; j < 16; ++j) {\n table[i16 + j] = alphabet[i] + alphabet[j]\n }\n }\n return table\n})()\n\n// Return not function with Error if BigInt not supported\nfunction defineBigIntMethod (fn) {\n return typeof BigInt === 'undefined' ? BufferBigIntNotDefined : fn\n}\n\nfunction BufferBigIntNotDefined () {\n throw new Error('BigInt not supported')\n}\n","var Buffer = require('safe-buffer').Buffer\nvar Transform = require('stream').Transform\nvar StringDecoder = require('string_decoder').StringDecoder\nvar inherits = require('inherits')\n\nfunction CipherBase (hashMode) {\n Transform.call(this)\n this.hashMode = typeof hashMode === 'string'\n if (this.hashMode) {\n this[hashMode] = this._finalOrDigest\n } else {\n this.final = this._finalOrDigest\n }\n if (this._final) {\n this.__final = this._final\n this._final = null\n }\n this._decoder = null\n this._encoding = null\n}\ninherits(CipherBase, Transform)\n\nCipherBase.prototype.update = function (data, inputEnc, outputEnc) {\n if (typeof data === 'string') {\n data = Buffer.from(data, inputEnc)\n }\n\n var outData = this._update(data)\n if (this.hashMode) return this\n\n if (outputEnc) {\n outData = this._toString(outData, outputEnc)\n }\n\n return outData\n}\n\nCipherBase.prototype.setAutoPadding = function () {}\nCipherBase.prototype.getAuthTag = function () {\n throw new Error('trying to get auth tag in unsupported state')\n}\n\nCipherBase.prototype.setAuthTag = function () {\n throw new Error('trying to set auth tag in unsupported state')\n}\n\nCipherBase.prototype.setAAD = function () {\n throw new Error('trying to set aad in unsupported state')\n}\n\nCipherBase.prototype._transform = function (data, _, next) {\n var err\n try {\n if (this.hashMode) {\n this._update(data)\n } else {\n this.push(this._update(data))\n }\n } catch (e) {\n err = e\n } finally {\n next(err)\n }\n}\nCipherBase.prototype._flush = function (done) {\n var err\n try {\n this.push(this.__final())\n } catch (e) {\n err = e\n }\n\n done(err)\n}\nCipherBase.prototype._finalOrDigest = function (outputEnc) {\n var outData = this.__final() || Buffer.alloc(0)\n if (outputEnc) {\n outData = this._toString(outData, outputEnc, true)\n }\n return outData\n}\n\nCipherBase.prototype._toString = function (value, enc, fin) {\n if (!this._decoder) {\n this._decoder = new StringDecoder(enc)\n this._encoding = enc\n }\n\n if (this._encoding !== enc) throw new Error('can\\'t switch encodings')\n\n var out = this._decoder.write(value)\n if (fin) {\n out += this._decoder.end()\n }\n\n return out\n}\n\nmodule.exports = CipherBase\n","/*!\n\tCopyright (c) 2018 Jed Watson.\n\tLicensed under the MIT License (MIT), see\n\thttp://jedwatson.github.io/classnames\n*/\n/* global define */\n\n(function () {\n\t'use strict';\n\n\tvar hasOwn = {}.hasOwnProperty;\n\tvar nativeCodeString = '[native code]';\n\n\tfunction classNames() {\n\t\tvar classes = [];\n\n\t\tfor (var i = 0; i < arguments.length; i++) {\n\t\t\tvar arg = arguments[i];\n\t\t\tif (!arg) continue;\n\n\t\t\tvar argType = typeof arg;\n\n\t\t\tif (argType === 'string' || argType === 'number') {\n\t\t\t\tclasses.push(arg);\n\t\t\t} else if (Array.isArray(arg)) {\n\t\t\t\tif (arg.length) {\n\t\t\t\t\tvar inner = classNames.apply(null, arg);\n\t\t\t\t\tif (inner) {\n\t\t\t\t\t\tclasses.push(inner);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t} else if (argType === 'object') {\n\t\t\t\tif (arg.toString !== Object.prototype.toString && !arg.toString.toString().includes('[native code]')) {\n\t\t\t\t\tclasses.push(arg.toString());\n\t\t\t\t\tcontinue;\n\t\t\t\t}\n\n\t\t\t\tfor (var key in arg) {\n\t\t\t\t\tif (hasOwn.call(arg, key) && arg[key]) {\n\t\t\t\t\t\tclasses.push(key);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn classes.join(' ');\n\t}\n\n\tif (typeof module !== 'undefined' && module.exports) {\n\t\tclassNames.default = classNames;\n\t\tmodule.exports = classNames;\n\t} else if (typeof define === 'function' && typeof define.amd === 'object' && define.amd) {\n\t\t// register as 'classnames', consistent with npm package name\n\t\tdefine('classnames', [], function () {\n\t\t\treturn classNames;\n\t\t});\n\t} else {\n\t\twindow.classNames = classNames;\n\t}\n}());\n","var isCallable = require('../internals/is-callable');\nvar isObject = require('../internals/is-object');\nvar setPrototypeOf = require('../internals/object-set-prototype-of');\n\n// makes subclassing work correct for wrapped built-ins\nmodule.exports = function ($this, dummy, Wrapper) {\n var NewTarget, NewTargetPrototype;\n if (\n // it can work only with native `setPrototypeOf`\n setPrototypeOf &&\n // we haven't completely correct pre-ES6 way for getting `new.target`, so use this\n isCallable(NewTarget = dummy.constructor) &&\n NewTarget !== Wrapper &&\n isObject(NewTargetPrototype = NewTarget.prototype) &&\n NewTargetPrototype !== Wrapper.prototype\n ) setPrototypeOf($this, NewTargetPrototype);\n return $this;\n};\n","var defineProperty = require('../internals/object-define-property').f;\n\nmodule.exports = function (Target, Source, key) {\n key in Target || defineProperty(Target, key, {\n configurable: true,\n get: function () { return Source[key]; },\n set: function (it) { Source[key] = it; }\n });\n};\n","'use strict';\nvar toIntegerOrInfinity = require('../internals/to-integer-or-infinity');\nvar toString = require('../internals/to-string');\nvar requireObjectCoercible = require('../internals/require-object-coercible');\n\nvar $RangeError = RangeError;\n\n// `String.prototype.repeat` method implementation\n// https://tc39.es/ecma262/#sec-string.prototype.repeat\nmodule.exports = function repeat(count) {\n var str = toString(requireObjectCoercible(this));\n var result = '';\n var n = toIntegerOrInfinity(count);\n if (n < 0 || n == Infinity) throw $RangeError('Wrong number of repetitions');\n for (;n > 0; (n >>>= 1) && (str += str)) if (n & 1) result += str;\n return result;\n};\n","var uncurryThis = require('../internals/function-uncurry-this');\n\n// `thisNumberValue` abstract operation\n// https://tc39.es/ecma262/#sec-thisnumbervalue\nmodule.exports = uncurryThis(1.0.valueOf);\n","'use strict';\nvar $ = require('../internals/export');\nvar flattenIntoArray = require('../internals/flatten-into-array');\nvar toObject = require('../internals/to-object');\nvar lengthOfArrayLike = require('../internals/length-of-array-like');\nvar toIntegerOrInfinity = require('../internals/to-integer-or-infinity');\nvar arraySpeciesCreate = require('../internals/array-species-create');\n\n// `Array.prototype.flat` method\n// https://tc39.es/ecma262/#sec-array.prototype.flat\n$({ target: 'Array', proto: true }, {\n flat: function flat(/* depthArg = 1 */) {\n var depthArg = arguments.length ? arguments[0] : undefined;\n var O = toObject(this);\n var sourceLen = lengthOfArrayLike(O);\n var A = arraySpeciesCreate(O, 0);\n A.length = flattenIntoArray(A, O, O, sourceLen, 0, depthArg === undefined ? 1 : toIntegerOrInfinity(depthArg));\n return A;\n }\n});\n","// this method was added to unscopables after implementation\n// in popular engines, so it's moved to a separate module\nvar addToUnscopables = require('../internals/add-to-unscopables');\n\n// https://tc39.es/ecma262/#sec-array.prototype-@@unscopables\naddToUnscopables('flat');\n","'use strict';\nvar $ = require('../internals/export');\nvar uncurryThis = require('../internals/function-uncurry-this');\nvar toIntegerOrInfinity = require('../internals/to-integer-or-infinity');\nvar thisNumberValue = require('../internals/this-number-value');\nvar $repeat = require('../internals/string-repeat');\nvar fails = require('../internals/fails');\n\nvar $RangeError = RangeError;\nvar $String = String;\nvar floor = Math.floor;\nvar repeat = uncurryThis($repeat);\nvar stringSlice = uncurryThis(''.slice);\nvar nativeToFixed = uncurryThis(1.0.toFixed);\n\nvar pow = function (x, n, acc) {\n return n === 0 ? acc : n % 2 === 1 ? pow(x, n - 1, acc * x) : pow(x * x, n / 2, acc);\n};\n\nvar log = function (x) {\n var n = 0;\n var x2 = x;\n while (x2 >= 4096) {\n n += 12;\n x2 /= 4096;\n }\n while (x2 >= 2) {\n n += 1;\n x2 /= 2;\n } return n;\n};\n\nvar multiply = function (data, n, c) {\n var index = -1;\n var c2 = c;\n while (++index < 6) {\n c2 += n * data[index];\n data[index] = c2 % 1e7;\n c2 = floor(c2 / 1e7);\n }\n};\n\nvar divide = function (data, n) {\n var index = 6;\n var c = 0;\n while (--index >= 0) {\n c += data[index];\n data[index] = floor(c / n);\n c = (c % n) * 1e7;\n }\n};\n\nvar dataToString = function (data) {\n var index = 6;\n var s = '';\n while (--index >= 0) {\n if (s !== '' || index === 0 || data[index] !== 0) {\n var t = $String(data[index]);\n s = s === '' ? t : s + repeat('0', 7 - t.length) + t;\n }\n } return s;\n};\n\nvar FORCED = fails(function () {\n return nativeToFixed(0.00008, 3) !== '0.000' ||\n nativeToFixed(0.9, 0) !== '1' ||\n nativeToFixed(1.255, 2) !== '1.25' ||\n nativeToFixed(1000000000000000128.0, 0) !== '1000000000000000128';\n}) || !fails(function () {\n // V8 ~ Android 4.3-\n nativeToFixed({});\n});\n\n// `Number.prototype.toFixed` method\n// https://tc39.es/ecma262/#sec-number.prototype.tofixed\n$({ target: 'Number', proto: true, forced: FORCED }, {\n toFixed: function toFixed(fractionDigits) {\n var number = thisNumberValue(this);\n var fractDigits = toIntegerOrInfinity(fractionDigits);\n var data = [0, 0, 0, 0, 0, 0];\n var sign = '';\n var result = '0';\n var e, z, j, k;\n\n // TODO: ES2018 increased the maximum number of fraction digits to 100, need to improve the implementation\n if (fractDigits < 0 || fractDigits > 20) throw $RangeError('Incorrect fraction digits');\n // eslint-disable-next-line no-self-compare -- NaN check\n if (number != number) return 'NaN';\n if (number <= -1e21 || number >= 1e21) return $String(number);\n if (number < 0) {\n sign = '-';\n number = -number;\n }\n if (number > 1e-21) {\n e = log(number * pow(2, 69, 1)) - 69;\n z = e < 0 ? number * pow(2, -e, 1) : number / pow(2, e, 1);\n z *= 0x10000000000000;\n e = 52 - e;\n if (e > 0) {\n multiply(data, 0, z);\n j = fractDigits;\n while (j >= 7) {\n multiply(data, 1e7, 0);\n j -= 7;\n }\n multiply(data, pow(10, j, 1), 0);\n j = e - 1;\n while (j >= 23) {\n divide(data, 1 << 23);\n j -= 23;\n }\n divide(data, 1 << j);\n multiply(data, 1, 1);\n divide(data, 2);\n result = dataToString(data);\n } else {\n multiply(data, 0, z);\n multiply(data, 1 << -e, 0);\n result = dataToString(data) + repeat('0', fractDigits);\n }\n }\n if (fractDigits > 0) {\n k = result.length;\n result = sign + (k <= fractDigits\n ? '0.' + repeat('0', fractDigits - k) + result\n : stringSlice(result, 0, k - fractDigits) + '.' + stringSlice(result, k - fractDigits));\n } else {\n result = sign + result;\n } return result;\n }\n});\n","var $ = require('../internals/export');\nvar iterate = require('../internals/iterate');\nvar createProperty = require('../internals/create-property');\n\n// `Object.fromEntries` method\n// https://github.com/tc39/proposal-object-from-entries\n$({ target: 'Object', stat: true }, {\n fromEntries: function fromEntries(iterable) {\n var obj = {};\n iterate(iterable, function (k, v) {\n createProperty(obj, k, v);\n }, { AS_ENTRIES: true });\n return obj;\n }\n});\n","var DESCRIPTORS = require('../internals/descriptors');\nvar global = require('../internals/global');\nvar uncurryThis = require('../internals/function-uncurry-this');\nvar isForced = require('../internals/is-forced');\nvar inheritIfRequired = require('../internals/inherit-if-required');\nvar createNonEnumerableProperty = require('../internals/create-non-enumerable-property');\nvar getOwnPropertyNames = require('../internals/object-get-own-property-names').f;\nvar isPrototypeOf = require('../internals/object-is-prototype-of');\nvar isRegExp = require('../internals/is-regexp');\nvar toString = require('../internals/to-string');\nvar getRegExpFlags = require('../internals/regexp-get-flags');\nvar stickyHelpers = require('../internals/regexp-sticky-helpers');\nvar proxyAccessor = require('../internals/proxy-accessor');\nvar defineBuiltIn = require('../internals/define-built-in');\nvar fails = require('../internals/fails');\nvar hasOwn = require('../internals/has-own-property');\nvar enforceInternalState = require('../internals/internal-state').enforce;\nvar setSpecies = require('../internals/set-species');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\nvar UNSUPPORTED_DOT_ALL = require('../internals/regexp-unsupported-dot-all');\nvar UNSUPPORTED_NCG = require('../internals/regexp-unsupported-ncg');\n\nvar MATCH = wellKnownSymbol('match');\nvar NativeRegExp = global.RegExp;\nvar RegExpPrototype = NativeRegExp.prototype;\nvar SyntaxError = global.SyntaxError;\nvar exec = uncurryThis(RegExpPrototype.exec);\nvar charAt = uncurryThis(''.charAt);\nvar replace = uncurryThis(''.replace);\nvar stringIndexOf = uncurryThis(''.indexOf);\nvar stringSlice = uncurryThis(''.slice);\n// TODO: Use only proper RegExpIdentifierName\nvar IS_NCG = /^\\?<[^\\s\\d!#%&*+<=>@^][^\\s!#%&*+<=>@^]*>/;\nvar re1 = /a/g;\nvar re2 = /a/g;\n\n// \"new\" should create a new object, old webkit bug\nvar CORRECT_NEW = new NativeRegExp(re1) !== re1;\n\nvar MISSED_STICKY = stickyHelpers.MISSED_STICKY;\nvar UNSUPPORTED_Y = stickyHelpers.UNSUPPORTED_Y;\n\nvar BASE_FORCED = DESCRIPTORS &&\n (!CORRECT_NEW || MISSED_STICKY || UNSUPPORTED_DOT_ALL || UNSUPPORTED_NCG || fails(function () {\n re2[MATCH] = false;\n // RegExp constructor can alter flags and IsRegExp works correct with @@match\n return NativeRegExp(re1) != re1 || NativeRegExp(re2) == re2 || NativeRegExp(re1, 'i') != '/a/i';\n }));\n\nvar handleDotAll = function (string) {\n var length = string.length;\n var index = 0;\n var result = '';\n var brackets = false;\n var chr;\n for (; index <= length; index++) {\n chr = charAt(string, index);\n if (chr === '\\\\') {\n result += chr + charAt(string, ++index);\n continue;\n }\n if (!brackets && chr === '.') {\n result += '[\\\\s\\\\S]';\n } else {\n if (chr === '[') {\n brackets = true;\n } else if (chr === ']') {\n brackets = false;\n } result += chr;\n }\n } return result;\n};\n\nvar handleNCG = function (string) {\n var length = string.length;\n var index = 0;\n var result = '';\n var named = [];\n var names = {};\n var brackets = false;\n var ncg = false;\n var groupid = 0;\n var groupname = '';\n var chr;\n for (; index <= length; index++) {\n chr = charAt(string, index);\n if (chr === '\\\\') {\n chr = chr + charAt(string, ++index);\n } else if (chr === ']') {\n brackets = false;\n } else if (!brackets) switch (true) {\n case chr === '[':\n brackets = true;\n break;\n case chr === '(':\n if (exec(IS_NCG, stringSlice(string, index + 1))) {\n index += 2;\n ncg = true;\n }\n result += chr;\n groupid++;\n continue;\n case chr === '>' && ncg:\n if (groupname === '' || hasOwn(names, groupname)) {\n throw new SyntaxError('Invalid capture group name');\n }\n names[groupname] = true;\n named[named.length] = [groupname, groupid];\n ncg = false;\n groupname = '';\n continue;\n }\n if (ncg) groupname += chr;\n else result += chr;\n } return [result, named];\n};\n\n// `RegExp` constructor\n// https://tc39.es/ecma262/#sec-regexp-constructor\nif (isForced('RegExp', BASE_FORCED)) {\n var RegExpWrapper = function RegExp(pattern, flags) {\n var thisIsRegExp = isPrototypeOf(RegExpPrototype, this);\n var patternIsRegExp = isRegExp(pattern);\n var flagsAreUndefined = flags === undefined;\n var groups = [];\n var rawPattern = pattern;\n var rawFlags, dotAll, sticky, handled, result, state;\n\n if (!thisIsRegExp && patternIsRegExp && flagsAreUndefined && pattern.constructor === RegExpWrapper) {\n return pattern;\n }\n\n if (patternIsRegExp || isPrototypeOf(RegExpPrototype, pattern)) {\n pattern = pattern.source;\n if (flagsAreUndefined) flags = getRegExpFlags(rawPattern);\n }\n\n pattern = pattern === undefined ? '' : toString(pattern);\n flags = flags === undefined ? '' : toString(flags);\n rawPattern = pattern;\n\n if (UNSUPPORTED_DOT_ALL && 'dotAll' in re1) {\n dotAll = !!flags && stringIndexOf(flags, 's') > -1;\n if (dotAll) flags = replace(flags, /s/g, '');\n }\n\n rawFlags = flags;\n\n if (MISSED_STICKY && 'sticky' in re1) {\n sticky = !!flags && stringIndexOf(flags, 'y') > -1;\n if (sticky && UNSUPPORTED_Y) flags = replace(flags, /y/g, '');\n }\n\n if (UNSUPPORTED_NCG) {\n handled = handleNCG(pattern);\n pattern = handled[0];\n groups = handled[1];\n }\n\n result = inheritIfRequired(NativeRegExp(pattern, flags), thisIsRegExp ? this : RegExpPrototype, RegExpWrapper);\n\n if (dotAll || sticky || groups.length) {\n state = enforceInternalState(result);\n if (dotAll) {\n state.dotAll = true;\n state.raw = RegExpWrapper(handleDotAll(pattern), rawFlags);\n }\n if (sticky) state.sticky = true;\n if (groups.length) state.groups = groups;\n }\n\n if (pattern !== rawPattern) try {\n // fails in old engines, but we have no alternatives for unsupported regex syntax\n createNonEnumerableProperty(result, 'source', rawPattern === '' ? '(?:)' : rawPattern);\n } catch (error) { /* empty */ }\n\n return result;\n };\n\n for (var keys = getOwnPropertyNames(NativeRegExp), index = 0; keys.length > index;) {\n proxyAccessor(RegExpWrapper, NativeRegExp, keys[index++]);\n }\n\n RegExpPrototype.constructor = RegExpWrapper;\n RegExpWrapper.prototype = RegExpPrototype;\n defineBuiltIn(global, 'RegExp', RegExpWrapper, { constructor: true });\n}\n\n// https://tc39.es/ecma262/#sec-get-regexp-@@species\nsetSpecies('RegExp');\n","'use strict';\nvar $ = require('../internals/export');\nvar uncurryThis = require('../internals/function-uncurry-this');\nvar getOwnPropertyDescriptor = require('../internals/object-get-own-property-descriptor').f;\nvar toLength = require('../internals/to-length');\nvar toString = require('../internals/to-string');\nvar notARegExp = require('../internals/not-a-regexp');\nvar requireObjectCoercible = require('../internals/require-object-coercible');\nvar correctIsRegExpLogic = require('../internals/correct-is-regexp-logic');\nvar IS_PURE = require('../internals/is-pure');\n\n// eslint-disable-next-line es/no-string-prototype-endswith -- safe\nvar nativeEndsWith = uncurryThis(''.endsWith);\nvar slice = uncurryThis(''.slice);\nvar min = Math.min;\n\nvar CORRECT_IS_REGEXP_LOGIC = correctIsRegExpLogic('endsWith');\n// https://github.com/zloirock/core-js/pull/702\nvar MDN_POLYFILL_BUG = !IS_PURE && !CORRECT_IS_REGEXP_LOGIC && !!function () {\n var descriptor = getOwnPropertyDescriptor(String.prototype, 'endsWith');\n return descriptor && !descriptor.writable;\n}();\n\n// `String.prototype.endsWith` method\n// https://tc39.es/ecma262/#sec-string.prototype.endswith\n$({ target: 'String', proto: true, forced: !MDN_POLYFILL_BUG && !CORRECT_IS_REGEXP_LOGIC }, {\n endsWith: function endsWith(searchString /* , endPosition = @length */) {\n var that = toString(requireObjectCoercible(this));\n notARegExp(searchString);\n var endPosition = arguments.length > 1 ? arguments[1] : undefined;\n var len = that.length;\n var end = endPosition === undefined ? len : min(toLength(endPosition), len);\n var search = toString(searchString);\n return nativeEndsWith\n ? nativeEndsWith(that, search, end)\n : slice(that, end - search.length, end) === search;\n }\n});\n","'use strict';\n/* eslint-disable es/no-string-prototype-matchall -- safe */\nvar $ = require('../internals/export');\nvar call = require('../internals/function-call');\nvar uncurryThis = require('../internals/function-uncurry-this');\nvar createIteratorConstructor = require('../internals/iterator-create-constructor');\nvar createIterResultObject = require('../internals/create-iter-result-object');\nvar requireObjectCoercible = require('../internals/require-object-coercible');\nvar toLength = require('../internals/to-length');\nvar toString = require('../internals/to-string');\nvar anObject = require('../internals/an-object');\nvar isNullOrUndefined = require('../internals/is-null-or-undefined');\nvar classof = require('../internals/classof-raw');\nvar isRegExp = require('../internals/is-regexp');\nvar getRegExpFlags = require('../internals/regexp-get-flags');\nvar getMethod = require('../internals/get-method');\nvar defineBuiltIn = require('../internals/define-built-in');\nvar fails = require('../internals/fails');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\nvar speciesConstructor = require('../internals/species-constructor');\nvar advanceStringIndex = require('../internals/advance-string-index');\nvar regExpExec = require('../internals/regexp-exec-abstract');\nvar InternalStateModule = require('../internals/internal-state');\nvar IS_PURE = require('../internals/is-pure');\n\nvar MATCH_ALL = wellKnownSymbol('matchAll');\nvar REGEXP_STRING = 'RegExp String';\nvar REGEXP_STRING_ITERATOR = REGEXP_STRING + ' Iterator';\nvar setInternalState = InternalStateModule.set;\nvar getInternalState = InternalStateModule.getterFor(REGEXP_STRING_ITERATOR);\nvar RegExpPrototype = RegExp.prototype;\nvar $TypeError = TypeError;\nvar stringIndexOf = uncurryThis(''.indexOf);\nvar nativeMatchAll = uncurryThis(''.matchAll);\n\nvar WORKS_WITH_NON_GLOBAL_REGEX = !!nativeMatchAll && !fails(function () {\n nativeMatchAll('a', /./);\n});\n\nvar $RegExpStringIterator = createIteratorConstructor(function RegExpStringIterator(regexp, string, $global, fullUnicode) {\n setInternalState(this, {\n type: REGEXP_STRING_ITERATOR,\n regexp: regexp,\n string: string,\n global: $global,\n unicode: fullUnicode,\n done: false\n });\n}, REGEXP_STRING, function next() {\n var state = getInternalState(this);\n if (state.done) return createIterResultObject(undefined, true);\n var R = state.regexp;\n var S = state.string;\n var match = regExpExec(R, S);\n if (match === null) {\n state.done = true;\n return createIterResultObject(undefined, true);\n }\n if (state.global) {\n if (toString(match[0]) === '') R.lastIndex = advanceStringIndex(S, toLength(R.lastIndex), state.unicode);\n return createIterResultObject(match, false);\n }\n state.done = true;\n return createIterResultObject(match, false);\n});\n\nvar $matchAll = function (string) {\n var R = anObject(this);\n var S = toString(string);\n var C = speciesConstructor(R, RegExp);\n var flags = toString(getRegExpFlags(R));\n var matcher, $global, fullUnicode;\n matcher = new C(C === RegExp ? R.source : R, flags);\n $global = !!~stringIndexOf(flags, 'g');\n fullUnicode = !!~stringIndexOf(flags, 'u');\n matcher.lastIndex = toLength(R.lastIndex);\n return new $RegExpStringIterator(matcher, S, $global, fullUnicode);\n};\n\n// `String.prototype.matchAll` method\n// https://tc39.es/ecma262/#sec-string.prototype.matchall\n$({ target: 'String', proto: true, forced: WORKS_WITH_NON_GLOBAL_REGEX }, {\n matchAll: function matchAll(regexp) {\n var O = requireObjectCoercible(this);\n var flags, S, matcher, rx;\n if (!isNullOrUndefined(regexp)) {\n if (isRegExp(regexp)) {\n flags = toString(requireObjectCoercible(getRegExpFlags(regexp)));\n if (!~stringIndexOf(flags, 'g')) throw $TypeError('`.matchAll` does not allow non-global regexes');\n }\n if (WORKS_WITH_NON_GLOBAL_REGEX) return nativeMatchAll(O, regexp);\n matcher = getMethod(regexp, MATCH_ALL);\n if (matcher === undefined && IS_PURE && classof(regexp) == 'RegExp') matcher = $matchAll;\n if (matcher) return call(matcher, regexp, O);\n } else if (WORKS_WITH_NON_GLOBAL_REGEX) return nativeMatchAll(O, regexp);\n S = toString(O);\n rx = new RegExp(regexp, 'g');\n return IS_PURE ? call($matchAll, rx, S) : rx[MATCH_ALL](S);\n }\n});\n\nIS_PURE || MATCH_ALL in RegExpPrototype || defineBuiltIn(RegExpPrototype, MATCH_ALL, $matchAll);\n","'use strict';\nvar $ = require('../internals/export');\nvar call = require('../internals/function-call');\nvar uncurryThis = require('../internals/function-uncurry-this');\nvar requireObjectCoercible = require('../internals/require-object-coercible');\nvar isCallable = require('../internals/is-callable');\nvar isNullOrUndefined = require('../internals/is-null-or-undefined');\nvar isRegExp = require('../internals/is-regexp');\nvar toString = require('../internals/to-string');\nvar getMethod = require('../internals/get-method');\nvar getRegExpFlags = require('../internals/regexp-get-flags');\nvar getSubstitution = require('../internals/get-substitution');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\nvar IS_PURE = require('../internals/is-pure');\n\nvar REPLACE = wellKnownSymbol('replace');\nvar $TypeError = TypeError;\nvar indexOf = uncurryThis(''.indexOf);\nvar replace = uncurryThis(''.replace);\nvar stringSlice = uncurryThis(''.slice);\nvar max = Math.max;\n\nvar stringIndexOf = function (string, searchValue, fromIndex) {\n if (fromIndex > string.length) return -1;\n if (searchValue === '') return fromIndex;\n return indexOf(string, searchValue, fromIndex);\n};\n\n// `String.prototype.replaceAll` method\n// https://tc39.es/ecma262/#sec-string.prototype.replaceall\n$({ target: 'String', proto: true }, {\n replaceAll: function replaceAll(searchValue, replaceValue) {\n var O = requireObjectCoercible(this);\n var IS_REG_EXP, flags, replacer, string, searchString, functionalReplace, searchLength, advanceBy, replacement;\n var position = 0;\n var endOfLastMatch = 0;\n var result = '';\n if (!isNullOrUndefined(searchValue)) {\n IS_REG_EXP = isRegExp(searchValue);\n if (IS_REG_EXP) {\n flags = toString(requireObjectCoercible(getRegExpFlags(searchValue)));\n if (!~indexOf(flags, 'g')) throw $TypeError('`.replaceAll` does not allow non-global regexes');\n }\n replacer = getMethod(searchValue, REPLACE);\n if (replacer) {\n return call(replacer, searchValue, O, replaceValue);\n } else if (IS_PURE && IS_REG_EXP) {\n return replace(toString(O), searchValue, replaceValue);\n }\n }\n string = toString(O);\n searchString = toString(searchValue);\n functionalReplace = isCallable(replaceValue);\n if (!functionalReplace) replaceValue = toString(replaceValue);\n searchLength = searchString.length;\n advanceBy = max(1, searchLength);\n position = stringIndexOf(string, searchString, 0);\n while (position !== -1) {\n replacement = functionalReplace\n ? toString(replaceValue(searchString, position, string))\n : getSubstitution(searchString, string, position, [], undefined, replaceValue);\n result += stringSlice(string, endOfLastMatch, position) + replacement;\n endOfLastMatch = position + searchLength;\n position = stringIndexOf(string, searchString, position + advanceBy);\n }\n if (endOfLastMatch < string.length) {\n result += stringSlice(string, endOfLastMatch);\n }\n return result;\n }\n});\n","// TODO: Remove from `core-js@4`\nrequire('../modules/es.string.match-all');\n","// TODO: Remove from `core-js@4`\nrequire('../modules/es.string.replace-all');\n","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\n// NOTE: These type checking functions intentionally don't use `instanceof`\n// because it is fragile and can be easily faked with `Object.create()`.\n\nfunction isArray(arg) {\n if (Array.isArray) {\n return Array.isArray(arg);\n }\n return objectToString(arg) === '[object Array]';\n}\nexports.isArray = isArray;\n\nfunction isBoolean(arg) {\n return typeof arg === 'boolean';\n}\nexports.isBoolean = isBoolean;\n\nfunction isNull(arg) {\n return arg === null;\n}\nexports.isNull = isNull;\n\nfunction isNullOrUndefined(arg) {\n return arg == null;\n}\nexports.isNullOrUndefined = isNullOrUndefined;\n\nfunction isNumber(arg) {\n return typeof arg === 'number';\n}\nexports.isNumber = isNumber;\n\nfunction isString(arg) {\n return typeof arg === 'string';\n}\nexports.isString = isString;\n\nfunction isSymbol(arg) {\n return typeof arg === 'symbol';\n}\nexports.isSymbol = isSymbol;\n\nfunction isUndefined(arg) {\n return arg === void 0;\n}\nexports.isUndefined = isUndefined;\n\nfunction isRegExp(re) {\n return objectToString(re) === '[object RegExp]';\n}\nexports.isRegExp = isRegExp;\n\nfunction isObject(arg) {\n return typeof arg === 'object' && arg !== null;\n}\nexports.isObject = isObject;\n\nfunction isDate(d) {\n return objectToString(d) === '[object Date]';\n}\nexports.isDate = isDate;\n\nfunction isError(e) {\n return (objectToString(e) === '[object Error]' || e instanceof Error);\n}\nexports.isError = isError;\n\nfunction isFunction(arg) {\n return typeof arg === 'function';\n}\nexports.isFunction = isFunction;\n\nfunction isPrimitive(arg) {\n return arg === null ||\n typeof arg === 'boolean' ||\n typeof arg === 'number' ||\n typeof arg === 'string' ||\n typeof arg === 'symbol' || // ES6 symbol\n typeof arg === 'undefined';\n}\nexports.isPrimitive = isPrimitive;\n\nexports.isBuffer = require('buffer').Buffer.isBuffer;\n\nfunction objectToString(o) {\n return Object.prototype.toString.call(o);\n}\n","'use strict'\n\nvar data = require('./data.json')\n\n/** Precompute name and code lookups. */\nvar nameMap = {}\nvar codeMap = {}\ndata.forEach(mapCodeAndName)\n\nfunction mapCodeAndName (country) {\n nameMap[country.name.toLowerCase()] = country.code\n codeMap[country.code.toLowerCase()] = country.name\n}\n\nexports.overwrite = function overwrite (countries) {\n if (!countries || !countries.length) return\n countries.forEach(function (country) {\n var foundIndex = data.findIndex(function (item) {\n return item.code === country.code\n })\n data[foundIndex] = country\n mapCodeAndName(country)\n })\n}\n\nexports.getCode = function getCode (name) {\n return nameMap[name.toLowerCase()]\n}\n\nexports.getName = function getName (code) {\n return codeMap[code.toLowerCase()]\n}\n\nexports.getNames = function getNames () {\n return data.map(function (country) {\n return country.name\n })\n}\n\nexports.getCodes = function getCodes () {\n return data.map(function (country) {\n return country.code\n })\n}\n\nexports.getCodeList = function getCodeList () {\n return codeMap\n}\n\nexports.getNameList = function getNameList () {\n return nameMap\n}\n\nexports.getData = function getData () {\n return data\n}\n","var elliptic = require('elliptic')\nvar BN = require('bn.js')\n\nmodule.exports = function createECDH (curve) {\n return new ECDH(curve)\n}\n\nvar aliases = {\n secp256k1: {\n name: 'secp256k1',\n byteLength: 32\n },\n secp224r1: {\n name: 'p224',\n byteLength: 28\n },\n prime256v1: {\n name: 'p256',\n byteLength: 32\n },\n prime192v1: {\n name: 'p192',\n byteLength: 24\n },\n ed25519: {\n name: 'ed25519',\n byteLength: 32\n },\n secp384r1: {\n name: 'p384',\n byteLength: 48\n },\n secp521r1: {\n name: 'p521',\n byteLength: 66\n }\n}\n\naliases.p224 = aliases.secp224r1\naliases.p256 = aliases.secp256r1 = aliases.prime256v1\naliases.p192 = aliases.secp192r1 = aliases.prime192v1\naliases.p384 = aliases.secp384r1\naliases.p521 = aliases.secp521r1\n\nfunction ECDH (curve) {\n this.curveType = aliases[curve]\n if (!this.curveType) {\n this.curveType = {\n name: curve\n }\n }\n this.curve = new elliptic.ec(this.curveType.name) // eslint-disable-line new-cap\n this.keys = void 0\n}\n\nECDH.prototype.generateKeys = function (enc, format) {\n this.keys = this.curve.genKeyPair()\n return this.getPublicKey(enc, format)\n}\n\nECDH.prototype.computeSecret = function (other, inenc, enc) {\n inenc = inenc || 'utf8'\n if (!Buffer.isBuffer(other)) {\n other = new Buffer(other, inenc)\n }\n var otherPub = this.curve.keyFromPublic(other).getPublic()\n var out = otherPub.mul(this.keys.getPrivate()).getX()\n return formatReturnValue(out, enc, this.curveType.byteLength)\n}\n\nECDH.prototype.getPublicKey = function (enc, format) {\n var key = this.keys.getPublic(format === 'compressed', true)\n if (format === 'hybrid') {\n if (key[key.length - 1] % 2) {\n key[0] = 7\n } else {\n key[0] = 6\n }\n }\n return formatReturnValue(key, enc)\n}\n\nECDH.prototype.getPrivateKey = function (enc) {\n return formatReturnValue(this.keys.getPrivate(), enc)\n}\n\nECDH.prototype.setPublicKey = function (pub, enc) {\n enc = enc || 'utf8'\n if (!Buffer.isBuffer(pub)) {\n pub = new Buffer(pub, enc)\n }\n this.keys._importPublic(pub)\n return this\n}\n\nECDH.prototype.setPrivateKey = function (priv, enc) {\n enc = enc || 'utf8'\n if (!Buffer.isBuffer(priv)) {\n priv = new Buffer(priv, enc)\n }\n\n var _priv = new BN(priv)\n _priv = _priv.toString(16)\n this.keys = this.curve.genKeyPair()\n this.keys._importPrivate(_priv)\n return this\n}\n\nfunction formatReturnValue (bn, enc, len) {\n if (!Array.isArray(bn)) {\n bn = bn.toArray()\n }\n var buf = new Buffer(bn)\n if (len && buf.length < len) {\n var zeros = new Buffer(len - buf.length)\n zeros.fill(0)\n buf = Buffer.concat([zeros, buf])\n }\n if (!enc) {\n return buf\n } else {\n return buf.toString(enc)\n }\n}\n","(function (module, exports) {\n 'use strict';\n\n // Utils\n function assert (val, msg) {\n if (!val) throw new Error(msg || 'Assertion failed');\n }\n\n // Could use `inherits` module, but don't want to move from single file\n // architecture yet.\n function inherits (ctor, superCtor) {\n ctor.super_ = superCtor;\n var TempCtor = function () {};\n TempCtor.prototype = superCtor.prototype;\n ctor.prototype = new TempCtor();\n ctor.prototype.constructor = ctor;\n }\n\n // BN\n\n function BN (number, base, endian) {\n if (BN.isBN(number)) {\n return number;\n }\n\n this.negative = 0;\n this.words = null;\n this.length = 0;\n\n // Reduction context\n this.red = null;\n\n if (number !== null) {\n if (base === 'le' || base === 'be') {\n endian = base;\n base = 10;\n }\n\n this._init(number || 0, base || 10, endian || 'be');\n }\n }\n if (typeof module === 'object') {\n module.exports = BN;\n } else {\n exports.BN = BN;\n }\n\n BN.BN = BN;\n BN.wordSize = 26;\n\n var Buffer;\n try {\n if (typeof window !== 'undefined' && typeof window.Buffer !== 'undefined') {\n Buffer = window.Buffer;\n } else {\n Buffer = require('buffer').Buffer;\n }\n } catch (e) {\n }\n\n BN.isBN = function isBN (num) {\n if (num instanceof BN) {\n return true;\n }\n\n return num !== null && typeof num === 'object' &&\n num.constructor.wordSize === BN.wordSize && Array.isArray(num.words);\n };\n\n BN.max = function max (left, right) {\n if (left.cmp(right) > 0) return left;\n return right;\n };\n\n BN.min = function min (left, right) {\n if (left.cmp(right) < 0) return left;\n return right;\n };\n\n BN.prototype._init = function init (number, base, endian) {\n if (typeof number === 'number') {\n return this._initNumber(number, base, endian);\n }\n\n if (typeof number === 'object') {\n return this._initArray(number, base, endian);\n }\n\n if (base === 'hex') {\n base = 16;\n }\n assert(base === (base | 0) && base >= 2 && base <= 36);\n\n number = number.toString().replace(/\\s+/g, '');\n var start = 0;\n if (number[0] === '-') {\n start++;\n this.negative = 1;\n }\n\n if (start < number.length) {\n if (base === 16) {\n this._parseHex(number, start, endian);\n } else {\n this._parseBase(number, base, start);\n if (endian === 'le') {\n this._initArray(this.toArray(), base, endian);\n }\n }\n }\n };\n\n BN.prototype._initNumber = function _initNumber (number, base, endian) {\n if (number < 0) {\n this.negative = 1;\n number = -number;\n }\n if (number < 0x4000000) {\n this.words = [ number & 0x3ffffff ];\n this.length = 1;\n } else if (number < 0x10000000000000) {\n this.words = [\n number & 0x3ffffff,\n (number / 0x4000000) & 0x3ffffff\n ];\n this.length = 2;\n } else {\n assert(number < 0x20000000000000); // 2 ^ 53 (unsafe)\n this.words = [\n number & 0x3ffffff,\n (number / 0x4000000) & 0x3ffffff,\n 1\n ];\n this.length = 3;\n }\n\n if (endian !== 'le') return;\n\n // Reverse the bytes\n this._initArray(this.toArray(), base, endian);\n };\n\n BN.prototype._initArray = function _initArray (number, base, endian) {\n // Perhaps a Uint8Array\n assert(typeof number.length === 'number');\n if (number.length <= 0) {\n this.words = [ 0 ];\n this.length = 1;\n return this;\n }\n\n this.length = Math.ceil(number.length / 3);\n this.words = new Array(this.length);\n for (var i = 0; i < this.length; i++) {\n this.words[i] = 0;\n }\n\n var j, w;\n var off = 0;\n if (endian === 'be') {\n for (i = number.length - 1, j = 0; i >= 0; i -= 3) {\n w = number[i] | (number[i - 1] << 8) | (number[i - 2] << 16);\n this.words[j] |= (w << off) & 0x3ffffff;\n this.words[j + 1] = (w >>> (26 - off)) & 0x3ffffff;\n off += 24;\n if (off >= 26) {\n off -= 26;\n j++;\n }\n }\n } else if (endian === 'le') {\n for (i = 0, j = 0; i < number.length; i += 3) {\n w = number[i] | (number[i + 1] << 8) | (number[i + 2] << 16);\n this.words[j] |= (w << off) & 0x3ffffff;\n this.words[j + 1] = (w >>> (26 - off)) & 0x3ffffff;\n off += 24;\n if (off >= 26) {\n off -= 26;\n j++;\n }\n }\n }\n return this.strip();\n };\n\n function parseHex4Bits (string, index) {\n var c = string.charCodeAt(index);\n // 'A' - 'F'\n if (c >= 65 && c <= 70) {\n return c - 55;\n // 'a' - 'f'\n } else if (c >= 97 && c <= 102) {\n return c - 87;\n // '0' - '9'\n } else {\n return (c - 48) & 0xf;\n }\n }\n\n function parseHexByte (string, lowerBound, index) {\n var r = parseHex4Bits(string, index);\n if (index - 1 >= lowerBound) {\n r |= parseHex4Bits(string, index - 1) << 4;\n }\n return r;\n }\n\n BN.prototype._parseHex = function _parseHex (number, start, endian) {\n // Create possibly bigger array to ensure that it fits the number\n this.length = Math.ceil((number.length - start) / 6);\n this.words = new Array(this.length);\n for (var i = 0; i < this.length; i++) {\n this.words[i] = 0;\n }\n\n // 24-bits chunks\n var off = 0;\n var j = 0;\n\n var w;\n if (endian === 'be') {\n for (i = number.length - 1; i >= start; i -= 2) {\n w = parseHexByte(number, start, i) << off;\n this.words[j] |= w & 0x3ffffff;\n if (off >= 18) {\n off -= 18;\n j += 1;\n this.words[j] |= w >>> 26;\n } else {\n off += 8;\n }\n }\n } else {\n var parseLength = number.length - start;\n for (i = parseLength % 2 === 0 ? start + 1 : start; i < number.length; i += 2) {\n w = parseHexByte(number, start, i) << off;\n this.words[j] |= w & 0x3ffffff;\n if (off >= 18) {\n off -= 18;\n j += 1;\n this.words[j] |= w >>> 26;\n } else {\n off += 8;\n }\n }\n }\n\n this.strip();\n };\n\n function parseBase (str, start, end, mul) {\n var r = 0;\n var len = Math.min(str.length, end);\n for (var i = start; i < len; i++) {\n var c = str.charCodeAt(i) - 48;\n\n r *= mul;\n\n // 'a'\n if (c >= 49) {\n r += c - 49 + 0xa;\n\n // 'A'\n } else if (c >= 17) {\n r += c - 17 + 0xa;\n\n // '0' - '9'\n } else {\n r += c;\n }\n }\n return r;\n }\n\n BN.prototype._parseBase = function _parseBase (number, base, start) {\n // Initialize as zero\n this.words = [ 0 ];\n this.length = 1;\n\n // Find length of limb in base\n for (var limbLen = 0, limbPow = 1; limbPow <= 0x3ffffff; limbPow *= base) {\n limbLen++;\n }\n limbLen--;\n limbPow = (limbPow / base) | 0;\n\n var total = number.length - start;\n var mod = total % limbLen;\n var end = Math.min(total, total - mod) + start;\n\n var word = 0;\n for (var i = start; i < end; i += limbLen) {\n word = parseBase(number, i, i + limbLen, base);\n\n this.imuln(limbPow);\n if (this.words[0] + word < 0x4000000) {\n this.words[0] += word;\n } else {\n this._iaddn(word);\n }\n }\n\n if (mod !== 0) {\n var pow = 1;\n word = parseBase(number, i, number.length, base);\n\n for (i = 0; i < mod; i++) {\n pow *= base;\n }\n\n this.imuln(pow);\n if (this.words[0] + word < 0x4000000) {\n this.words[0] += word;\n } else {\n this._iaddn(word);\n }\n }\n\n this.strip();\n };\n\n BN.prototype.copy = function copy (dest) {\n dest.words = new Array(this.length);\n for (var i = 0; i < this.length; i++) {\n dest.words[i] = this.words[i];\n }\n dest.length = this.length;\n dest.negative = this.negative;\n dest.red = this.red;\n };\n\n BN.prototype.clone = function clone () {\n var r = new BN(null);\n this.copy(r);\n return r;\n };\n\n BN.prototype._expand = function _expand (size) {\n while (this.length < size) {\n this.words[this.length++] = 0;\n }\n return this;\n };\n\n // Remove leading `0` from `this`\n BN.prototype.strip = function strip () {\n while (this.length > 1 && this.words[this.length - 1] === 0) {\n this.length--;\n }\n return this._normSign();\n };\n\n BN.prototype._normSign = function _normSign () {\n // -0 = 0\n if (this.length === 1 && this.words[0] === 0) {\n this.negative = 0;\n }\n return this;\n };\n\n BN.prototype.inspect = function inspect () {\n return (this.red ? '';\n };\n\n /*\n\n var zeros = [];\n var groupSizes = [];\n var groupBases = [];\n\n var s = '';\n var i = -1;\n while (++i < BN.wordSize) {\n zeros[i] = s;\n s += '0';\n }\n groupSizes[0] = 0;\n groupSizes[1] = 0;\n groupBases[0] = 0;\n groupBases[1] = 0;\n var base = 2 - 1;\n while (++base < 36 + 1) {\n var groupSize = 0;\n var groupBase = 1;\n while (groupBase < (1 << BN.wordSize) / base) {\n groupBase *= base;\n groupSize += 1;\n }\n groupSizes[base] = groupSize;\n groupBases[base] = groupBase;\n }\n\n */\n\n var zeros = [\n '',\n '0',\n '00',\n '000',\n '0000',\n '00000',\n '000000',\n '0000000',\n '00000000',\n '000000000',\n '0000000000',\n '00000000000',\n '000000000000',\n '0000000000000',\n '00000000000000',\n '000000000000000',\n '0000000000000000',\n '00000000000000000',\n '000000000000000000',\n '0000000000000000000',\n '00000000000000000000',\n '000000000000000000000',\n '0000000000000000000000',\n '00000000000000000000000',\n '000000000000000000000000',\n '0000000000000000000000000'\n ];\n\n var groupSizes = [\n 0, 0,\n 25, 16, 12, 11, 10, 9, 8,\n 8, 7, 7, 7, 7, 6, 6,\n 6, 6, 6, 6, 6, 5, 5,\n 5, 5, 5, 5, 5, 5, 5,\n 5, 5, 5, 5, 5, 5, 5\n ];\n\n var groupBases = [\n 0, 0,\n 33554432, 43046721, 16777216, 48828125, 60466176, 40353607, 16777216,\n 43046721, 10000000, 19487171, 35831808, 62748517, 7529536, 11390625,\n 16777216, 24137569, 34012224, 47045881, 64000000, 4084101, 5153632,\n 6436343, 7962624, 9765625, 11881376, 14348907, 17210368, 20511149,\n 24300000, 28629151, 33554432, 39135393, 45435424, 52521875, 60466176\n ];\n\n BN.prototype.toString = function toString (base, padding) {\n base = base || 10;\n padding = padding | 0 || 1;\n\n var out;\n if (base === 16 || base === 'hex') {\n out = '';\n var off = 0;\n var carry = 0;\n for (var i = 0; i < this.length; i++) {\n var w = this.words[i];\n var word = (((w << off) | carry) & 0xffffff).toString(16);\n carry = (w >>> (24 - off)) & 0xffffff;\n if (carry !== 0 || i !== this.length - 1) {\n out = zeros[6 - word.length] + word + out;\n } else {\n out = word + out;\n }\n off += 2;\n if (off >= 26) {\n off -= 26;\n i--;\n }\n }\n if (carry !== 0) {\n out = carry.toString(16) + out;\n }\n while (out.length % padding !== 0) {\n out = '0' + out;\n }\n if (this.negative !== 0) {\n out = '-' + out;\n }\n return out;\n }\n\n if (base === (base | 0) && base >= 2 && base <= 36) {\n // var groupSize = Math.floor(BN.wordSize * Math.LN2 / Math.log(base));\n var groupSize = groupSizes[base];\n // var groupBase = Math.pow(base, groupSize);\n var groupBase = groupBases[base];\n out = '';\n var c = this.clone();\n c.negative = 0;\n while (!c.isZero()) {\n var r = c.modn(groupBase).toString(base);\n c = c.idivn(groupBase);\n\n if (!c.isZero()) {\n out = zeros[groupSize - r.length] + r + out;\n } else {\n out = r + out;\n }\n }\n if (this.isZero()) {\n out = '0' + out;\n }\n while (out.length % padding !== 0) {\n out = '0' + out;\n }\n if (this.negative !== 0) {\n out = '-' + out;\n }\n return out;\n }\n\n assert(false, 'Base should be between 2 and 36');\n };\n\n BN.prototype.toNumber = function toNumber () {\n var ret = this.words[0];\n if (this.length === 2) {\n ret += this.words[1] * 0x4000000;\n } else if (this.length === 3 && this.words[2] === 0x01) {\n // NOTE: at this stage it is known that the top bit is set\n ret += 0x10000000000000 + (this.words[1] * 0x4000000);\n } else if (this.length > 2) {\n assert(false, 'Number can only safely store up to 53 bits');\n }\n return (this.negative !== 0) ? -ret : ret;\n };\n\n BN.prototype.toJSON = function toJSON () {\n return this.toString(16);\n };\n\n BN.prototype.toBuffer = function toBuffer (endian, length) {\n assert(typeof Buffer !== 'undefined');\n return this.toArrayLike(Buffer, endian, length);\n };\n\n BN.prototype.toArray = function toArray (endian, length) {\n return this.toArrayLike(Array, endian, length);\n };\n\n BN.prototype.toArrayLike = function toArrayLike (ArrayType, endian, length) {\n var byteLength = this.byteLength();\n var reqLength = length || Math.max(1, byteLength);\n assert(byteLength <= reqLength, 'byte array longer than desired length');\n assert(reqLength > 0, 'Requested array length <= 0');\n\n this.strip();\n var littleEndian = endian === 'le';\n var res = new ArrayType(reqLength);\n\n var b, i;\n var q = this.clone();\n if (!littleEndian) {\n // Assume big-endian\n for (i = 0; i < reqLength - byteLength; i++) {\n res[i] = 0;\n }\n\n for (i = 0; !q.isZero(); i++) {\n b = q.andln(0xff);\n q.iushrn(8);\n\n res[reqLength - i - 1] = b;\n }\n } else {\n for (i = 0; !q.isZero(); i++) {\n b = q.andln(0xff);\n q.iushrn(8);\n\n res[i] = b;\n }\n\n for (; i < reqLength; i++) {\n res[i] = 0;\n }\n }\n\n return res;\n };\n\n if (Math.clz32) {\n BN.prototype._countBits = function _countBits (w) {\n return 32 - Math.clz32(w);\n };\n } else {\n BN.prototype._countBits = function _countBits (w) {\n var t = w;\n var r = 0;\n if (t >= 0x1000) {\n r += 13;\n t >>>= 13;\n }\n if (t >= 0x40) {\n r += 7;\n t >>>= 7;\n }\n if (t >= 0x8) {\n r += 4;\n t >>>= 4;\n }\n if (t >= 0x02) {\n r += 2;\n t >>>= 2;\n }\n return r + t;\n };\n }\n\n BN.prototype._zeroBits = function _zeroBits (w) {\n // Short-cut\n if (w === 0) return 26;\n\n var t = w;\n var r = 0;\n if ((t & 0x1fff) === 0) {\n r += 13;\n t >>>= 13;\n }\n if ((t & 0x7f) === 0) {\n r += 7;\n t >>>= 7;\n }\n if ((t & 0xf) === 0) {\n r += 4;\n t >>>= 4;\n }\n if ((t & 0x3) === 0) {\n r += 2;\n t >>>= 2;\n }\n if ((t & 0x1) === 0) {\n r++;\n }\n return r;\n };\n\n // Return number of used bits in a BN\n BN.prototype.bitLength = function bitLength () {\n var w = this.words[this.length - 1];\n var hi = this._countBits(w);\n return (this.length - 1) * 26 + hi;\n };\n\n function toBitArray (num) {\n var w = new Array(num.bitLength());\n\n for (var bit = 0; bit < w.length; bit++) {\n var off = (bit / 26) | 0;\n var wbit = bit % 26;\n\n w[bit] = (num.words[off] & (1 << wbit)) >>> wbit;\n }\n\n return w;\n }\n\n // Number of trailing zero bits\n BN.prototype.zeroBits = function zeroBits () {\n if (this.isZero()) return 0;\n\n var r = 0;\n for (var i = 0; i < this.length; i++) {\n var b = this._zeroBits(this.words[i]);\n r += b;\n if (b !== 26) break;\n }\n return r;\n };\n\n BN.prototype.byteLength = function byteLength () {\n return Math.ceil(this.bitLength() / 8);\n };\n\n BN.prototype.toTwos = function toTwos (width) {\n if (this.negative !== 0) {\n return this.abs().inotn(width).iaddn(1);\n }\n return this.clone();\n };\n\n BN.prototype.fromTwos = function fromTwos (width) {\n if (this.testn(width - 1)) {\n return this.notn(width).iaddn(1).ineg();\n }\n return this.clone();\n };\n\n BN.prototype.isNeg = function isNeg () {\n return this.negative !== 0;\n };\n\n // Return negative clone of `this`\n BN.prototype.neg = function neg () {\n return this.clone().ineg();\n };\n\n BN.prototype.ineg = function ineg () {\n if (!this.isZero()) {\n this.negative ^= 1;\n }\n\n return this;\n };\n\n // Or `num` with `this` in-place\n BN.prototype.iuor = function iuor (num) {\n while (this.length < num.length) {\n this.words[this.length++] = 0;\n }\n\n for (var i = 0; i < num.length; i++) {\n this.words[i] = this.words[i] | num.words[i];\n }\n\n return this.strip();\n };\n\n BN.prototype.ior = function ior (num) {\n assert((this.negative | num.negative) === 0);\n return this.iuor(num);\n };\n\n // Or `num` with `this`\n BN.prototype.or = function or (num) {\n if (this.length > num.length) return this.clone().ior(num);\n return num.clone().ior(this);\n };\n\n BN.prototype.uor = function uor (num) {\n if (this.length > num.length) return this.clone().iuor(num);\n return num.clone().iuor(this);\n };\n\n // And `num` with `this` in-place\n BN.prototype.iuand = function iuand (num) {\n // b = min-length(num, this)\n var b;\n if (this.length > num.length) {\n b = num;\n } else {\n b = this;\n }\n\n for (var i = 0; i < b.length; i++) {\n this.words[i] = this.words[i] & num.words[i];\n }\n\n this.length = b.length;\n\n return this.strip();\n };\n\n BN.prototype.iand = function iand (num) {\n assert((this.negative | num.negative) === 0);\n return this.iuand(num);\n };\n\n // And `num` with `this`\n BN.prototype.and = function and (num) {\n if (this.length > num.length) return this.clone().iand(num);\n return num.clone().iand(this);\n };\n\n BN.prototype.uand = function uand (num) {\n if (this.length > num.length) return this.clone().iuand(num);\n return num.clone().iuand(this);\n };\n\n // Xor `num` with `this` in-place\n BN.prototype.iuxor = function iuxor (num) {\n // a.length > b.length\n var a;\n var b;\n if (this.length > num.length) {\n a = this;\n b = num;\n } else {\n a = num;\n b = this;\n }\n\n for (var i = 0; i < b.length; i++) {\n this.words[i] = a.words[i] ^ b.words[i];\n }\n\n if (this !== a) {\n for (; i < a.length; i++) {\n this.words[i] = a.words[i];\n }\n }\n\n this.length = a.length;\n\n return this.strip();\n };\n\n BN.prototype.ixor = function ixor (num) {\n assert((this.negative | num.negative) === 0);\n return this.iuxor(num);\n };\n\n // Xor `num` with `this`\n BN.prototype.xor = function xor (num) {\n if (this.length > num.length) return this.clone().ixor(num);\n return num.clone().ixor(this);\n };\n\n BN.prototype.uxor = function uxor (num) {\n if (this.length > num.length) return this.clone().iuxor(num);\n return num.clone().iuxor(this);\n };\n\n // Not ``this`` with ``width`` bitwidth\n BN.prototype.inotn = function inotn (width) {\n assert(typeof width === 'number' && width >= 0);\n\n var bytesNeeded = Math.ceil(width / 26) | 0;\n var bitsLeft = width % 26;\n\n // Extend the buffer with leading zeroes\n this._expand(bytesNeeded);\n\n if (bitsLeft > 0) {\n bytesNeeded--;\n }\n\n // Handle complete words\n for (var i = 0; i < bytesNeeded; i++) {\n this.words[i] = ~this.words[i] & 0x3ffffff;\n }\n\n // Handle the residue\n if (bitsLeft > 0) {\n this.words[i] = ~this.words[i] & (0x3ffffff >> (26 - bitsLeft));\n }\n\n // And remove leading zeroes\n return this.strip();\n };\n\n BN.prototype.notn = function notn (width) {\n return this.clone().inotn(width);\n };\n\n // Set `bit` of `this`\n BN.prototype.setn = function setn (bit, val) {\n assert(typeof bit === 'number' && bit >= 0);\n\n var off = (bit / 26) | 0;\n var wbit = bit % 26;\n\n this._expand(off + 1);\n\n if (val) {\n this.words[off] = this.words[off] | (1 << wbit);\n } else {\n this.words[off] = this.words[off] & ~(1 << wbit);\n }\n\n return this.strip();\n };\n\n // Add `num` to `this` in-place\n BN.prototype.iadd = function iadd (num) {\n var r;\n\n // negative + positive\n if (this.negative !== 0 && num.negative === 0) {\n this.negative = 0;\n r = this.isub(num);\n this.negative ^= 1;\n return this._normSign();\n\n // positive + negative\n } else if (this.negative === 0 && num.negative !== 0) {\n num.negative = 0;\n r = this.isub(num);\n num.negative = 1;\n return r._normSign();\n }\n\n // a.length > b.length\n var a, b;\n if (this.length > num.length) {\n a = this;\n b = num;\n } else {\n a = num;\n b = this;\n }\n\n var carry = 0;\n for (var i = 0; i < b.length; i++) {\n r = (a.words[i] | 0) + (b.words[i] | 0) + carry;\n this.words[i] = r & 0x3ffffff;\n carry = r >>> 26;\n }\n for (; carry !== 0 && i < a.length; i++) {\n r = (a.words[i] | 0) + carry;\n this.words[i] = r & 0x3ffffff;\n carry = r >>> 26;\n }\n\n this.length = a.length;\n if (carry !== 0) {\n this.words[this.length] = carry;\n this.length++;\n // Copy the rest of the words\n } else if (a !== this) {\n for (; i < a.length; i++) {\n this.words[i] = a.words[i];\n }\n }\n\n return this;\n };\n\n // Add `num` to `this`\n BN.prototype.add = function add (num) {\n var res;\n if (num.negative !== 0 && this.negative === 0) {\n num.negative = 0;\n res = this.sub(num);\n num.negative ^= 1;\n return res;\n } else if (num.negative === 0 && this.negative !== 0) {\n this.negative = 0;\n res = num.sub(this);\n this.negative = 1;\n return res;\n }\n\n if (this.length > num.length) return this.clone().iadd(num);\n\n return num.clone().iadd(this);\n };\n\n // Subtract `num` from `this` in-place\n BN.prototype.isub = function isub (num) {\n // this - (-num) = this + num\n if (num.negative !== 0) {\n num.negative = 0;\n var r = this.iadd(num);\n num.negative = 1;\n return r._normSign();\n\n // -this - num = -(this + num)\n } else if (this.negative !== 0) {\n this.negative = 0;\n this.iadd(num);\n this.negative = 1;\n return this._normSign();\n }\n\n // At this point both numbers are positive\n var cmp = this.cmp(num);\n\n // Optimization - zeroify\n if (cmp === 0) {\n this.negative = 0;\n this.length = 1;\n this.words[0] = 0;\n return this;\n }\n\n // a > b\n var a, b;\n if (cmp > 0) {\n a = this;\n b = num;\n } else {\n a = num;\n b = this;\n }\n\n var carry = 0;\n for (var i = 0; i < b.length; i++) {\n r = (a.words[i] | 0) - (b.words[i] | 0) + carry;\n carry = r >> 26;\n this.words[i] = r & 0x3ffffff;\n }\n for (; carry !== 0 && i < a.length; i++) {\n r = (a.words[i] | 0) + carry;\n carry = r >> 26;\n this.words[i] = r & 0x3ffffff;\n }\n\n // Copy rest of the words\n if (carry === 0 && i < a.length && a !== this) {\n for (; i < a.length; i++) {\n this.words[i] = a.words[i];\n }\n }\n\n this.length = Math.max(this.length, i);\n\n if (a !== this) {\n this.negative = 1;\n }\n\n return this.strip();\n };\n\n // Subtract `num` from `this`\n BN.prototype.sub = function sub (num) {\n return this.clone().isub(num);\n };\n\n function smallMulTo (self, num, out) {\n out.negative = num.negative ^ self.negative;\n var len = (self.length + num.length) | 0;\n out.length = len;\n len = (len - 1) | 0;\n\n // Peel one iteration (compiler can't do it, because of code complexity)\n var a = self.words[0] | 0;\n var b = num.words[0] | 0;\n var r = a * b;\n\n var lo = r & 0x3ffffff;\n var carry = (r / 0x4000000) | 0;\n out.words[0] = lo;\n\n for (var k = 1; k < len; k++) {\n // Sum all words with the same `i + j = k` and accumulate `ncarry`,\n // note that ncarry could be >= 0x3ffffff\n var ncarry = carry >>> 26;\n var rword = carry & 0x3ffffff;\n var maxJ = Math.min(k, num.length - 1);\n for (var j = Math.max(0, k - self.length + 1); j <= maxJ; j++) {\n var i = (k - j) | 0;\n a = self.words[i] | 0;\n b = num.words[j] | 0;\n r = a * b + rword;\n ncarry += (r / 0x4000000) | 0;\n rword = r & 0x3ffffff;\n }\n out.words[k] = rword | 0;\n carry = ncarry | 0;\n }\n if (carry !== 0) {\n out.words[k] = carry | 0;\n } else {\n out.length--;\n }\n\n return out.strip();\n }\n\n // TODO(indutny): it may be reasonable to omit it for users who don't need\n // to work with 256-bit numbers, otherwise it gives 20% improvement for 256-bit\n // multiplication (like elliptic secp256k1).\n var comb10MulTo = function comb10MulTo (self, num, out) {\n var a = self.words;\n var b = num.words;\n var o = out.words;\n var c = 0;\n var lo;\n var mid;\n var hi;\n var a0 = a[0] | 0;\n var al0 = a0 & 0x1fff;\n var ah0 = a0 >>> 13;\n var a1 = a[1] | 0;\n var al1 = a1 & 0x1fff;\n var ah1 = a1 >>> 13;\n var a2 = a[2] | 0;\n var al2 = a2 & 0x1fff;\n var ah2 = a2 >>> 13;\n var a3 = a[3] | 0;\n var al3 = a3 & 0x1fff;\n var ah3 = a3 >>> 13;\n var a4 = a[4] | 0;\n var al4 = a4 & 0x1fff;\n var ah4 = a4 >>> 13;\n var a5 = a[5] | 0;\n var al5 = a5 & 0x1fff;\n var ah5 = a5 >>> 13;\n var a6 = a[6] | 0;\n var al6 = a6 & 0x1fff;\n var ah6 = a6 >>> 13;\n var a7 = a[7] | 0;\n var al7 = a7 & 0x1fff;\n var ah7 = a7 >>> 13;\n var a8 = a[8] | 0;\n var al8 = a8 & 0x1fff;\n var ah8 = a8 >>> 13;\n var a9 = a[9] | 0;\n var al9 = a9 & 0x1fff;\n var ah9 = a9 >>> 13;\n var b0 = b[0] | 0;\n var bl0 = b0 & 0x1fff;\n var bh0 = b0 >>> 13;\n var b1 = b[1] | 0;\n var bl1 = b1 & 0x1fff;\n var bh1 = b1 >>> 13;\n var b2 = b[2] | 0;\n var bl2 = b2 & 0x1fff;\n var bh2 = b2 >>> 13;\n var b3 = b[3] | 0;\n var bl3 = b3 & 0x1fff;\n var bh3 = b3 >>> 13;\n var b4 = b[4] | 0;\n var bl4 = b4 & 0x1fff;\n var bh4 = b4 >>> 13;\n var b5 = b[5] | 0;\n var bl5 = b5 & 0x1fff;\n var bh5 = b5 >>> 13;\n var b6 = b[6] | 0;\n var bl6 = b6 & 0x1fff;\n var bh6 = b6 >>> 13;\n var b7 = b[7] | 0;\n var bl7 = b7 & 0x1fff;\n var bh7 = b7 >>> 13;\n var b8 = b[8] | 0;\n var bl8 = b8 & 0x1fff;\n var bh8 = b8 >>> 13;\n var b9 = b[9] | 0;\n var bl9 = b9 & 0x1fff;\n var bh9 = b9 >>> 13;\n\n out.negative = self.negative ^ num.negative;\n out.length = 19;\n /* k = 0 */\n lo = Math.imul(al0, bl0);\n mid = Math.imul(al0, bh0);\n mid = (mid + Math.imul(ah0, bl0)) | 0;\n hi = Math.imul(ah0, bh0);\n var w0 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w0 >>> 26)) | 0;\n w0 &= 0x3ffffff;\n /* k = 1 */\n lo = Math.imul(al1, bl0);\n mid = Math.imul(al1, bh0);\n mid = (mid + Math.imul(ah1, bl0)) | 0;\n hi = Math.imul(ah1, bh0);\n lo = (lo + Math.imul(al0, bl1)) | 0;\n mid = (mid + Math.imul(al0, bh1)) | 0;\n mid = (mid + Math.imul(ah0, bl1)) | 0;\n hi = (hi + Math.imul(ah0, bh1)) | 0;\n var w1 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w1 >>> 26)) | 0;\n w1 &= 0x3ffffff;\n /* k = 2 */\n lo = Math.imul(al2, bl0);\n mid = Math.imul(al2, bh0);\n mid = (mid + Math.imul(ah2, bl0)) | 0;\n hi = Math.imul(ah2, bh0);\n lo = (lo + Math.imul(al1, bl1)) | 0;\n mid = (mid + Math.imul(al1, bh1)) | 0;\n mid = (mid + Math.imul(ah1, bl1)) | 0;\n hi = (hi + Math.imul(ah1, bh1)) | 0;\n lo = (lo + Math.imul(al0, bl2)) | 0;\n mid = (mid + Math.imul(al0, bh2)) | 0;\n mid = (mid + Math.imul(ah0, bl2)) | 0;\n hi = (hi + Math.imul(ah0, bh2)) | 0;\n var w2 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w2 >>> 26)) | 0;\n w2 &= 0x3ffffff;\n /* k = 3 */\n lo = Math.imul(al3, bl0);\n mid = Math.imul(al3, bh0);\n mid = (mid + Math.imul(ah3, bl0)) | 0;\n hi = Math.imul(ah3, bh0);\n lo = (lo + Math.imul(al2, bl1)) | 0;\n mid = (mid + Math.imul(al2, bh1)) | 0;\n mid = (mid + Math.imul(ah2, bl1)) | 0;\n hi = (hi + Math.imul(ah2, bh1)) | 0;\n lo = (lo + Math.imul(al1, bl2)) | 0;\n mid = (mid + Math.imul(al1, bh2)) | 0;\n mid = (mid + Math.imul(ah1, bl2)) | 0;\n hi = (hi + Math.imul(ah1, bh2)) | 0;\n lo = (lo + Math.imul(al0, bl3)) | 0;\n mid = (mid + Math.imul(al0, bh3)) | 0;\n mid = (mid + Math.imul(ah0, bl3)) | 0;\n hi = (hi + Math.imul(ah0, bh3)) | 0;\n var w3 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w3 >>> 26)) | 0;\n w3 &= 0x3ffffff;\n /* k = 4 */\n lo = Math.imul(al4, bl0);\n mid = Math.imul(al4, bh0);\n mid = (mid + Math.imul(ah4, bl0)) | 0;\n hi = Math.imul(ah4, bh0);\n lo = (lo + Math.imul(al3, bl1)) | 0;\n mid = (mid + Math.imul(al3, bh1)) | 0;\n mid = (mid + Math.imul(ah3, bl1)) | 0;\n hi = (hi + Math.imul(ah3, bh1)) | 0;\n lo = (lo + Math.imul(al2, bl2)) | 0;\n mid = (mid + Math.imul(al2, bh2)) | 0;\n mid = (mid + Math.imul(ah2, bl2)) | 0;\n hi = (hi + Math.imul(ah2, bh2)) | 0;\n lo = (lo + Math.imul(al1, bl3)) | 0;\n mid = (mid + Math.imul(al1, bh3)) | 0;\n mid = (mid + Math.imul(ah1, bl3)) | 0;\n hi = (hi + Math.imul(ah1, bh3)) | 0;\n lo = (lo + Math.imul(al0, bl4)) | 0;\n mid = (mid + Math.imul(al0, bh4)) | 0;\n mid = (mid + Math.imul(ah0, bl4)) | 0;\n hi = (hi + Math.imul(ah0, bh4)) | 0;\n var w4 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w4 >>> 26)) | 0;\n w4 &= 0x3ffffff;\n /* k = 5 */\n lo = Math.imul(al5, bl0);\n mid = Math.imul(al5, bh0);\n mid = (mid + Math.imul(ah5, bl0)) | 0;\n hi = Math.imul(ah5, bh0);\n lo = (lo + Math.imul(al4, bl1)) | 0;\n mid = (mid + Math.imul(al4, bh1)) | 0;\n mid = (mid + Math.imul(ah4, bl1)) | 0;\n hi = (hi + Math.imul(ah4, bh1)) | 0;\n lo = (lo + Math.imul(al3, bl2)) | 0;\n mid = (mid + Math.imul(al3, bh2)) | 0;\n mid = (mid + Math.imul(ah3, bl2)) | 0;\n hi = (hi + Math.imul(ah3, bh2)) | 0;\n lo = (lo + Math.imul(al2, bl3)) | 0;\n mid = (mid + Math.imul(al2, bh3)) | 0;\n mid = (mid + Math.imul(ah2, bl3)) | 0;\n hi = (hi + Math.imul(ah2, bh3)) | 0;\n lo = (lo + Math.imul(al1, bl4)) | 0;\n mid = (mid + Math.imul(al1, bh4)) | 0;\n mid = (mid + Math.imul(ah1, bl4)) | 0;\n hi = (hi + Math.imul(ah1, bh4)) | 0;\n lo = (lo + Math.imul(al0, bl5)) | 0;\n mid = (mid + Math.imul(al0, bh5)) | 0;\n mid = (mid + Math.imul(ah0, bl5)) | 0;\n hi = (hi + Math.imul(ah0, bh5)) | 0;\n var w5 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w5 >>> 26)) | 0;\n w5 &= 0x3ffffff;\n /* k = 6 */\n lo = Math.imul(al6, bl0);\n mid = Math.imul(al6, bh0);\n mid = (mid + Math.imul(ah6, bl0)) | 0;\n hi = Math.imul(ah6, bh0);\n lo = (lo + Math.imul(al5, bl1)) | 0;\n mid = (mid + Math.imul(al5, bh1)) | 0;\n mid = (mid + Math.imul(ah5, bl1)) | 0;\n hi = (hi + Math.imul(ah5, bh1)) | 0;\n lo = (lo + Math.imul(al4, bl2)) | 0;\n mid = (mid + Math.imul(al4, bh2)) | 0;\n mid = (mid + Math.imul(ah4, bl2)) | 0;\n hi = (hi + Math.imul(ah4, bh2)) | 0;\n lo = (lo + Math.imul(al3, bl3)) | 0;\n mid = (mid + Math.imul(al3, bh3)) | 0;\n mid = (mid + Math.imul(ah3, bl3)) | 0;\n hi = (hi + Math.imul(ah3, bh3)) | 0;\n lo = (lo + Math.imul(al2, bl4)) | 0;\n mid = (mid + Math.imul(al2, bh4)) | 0;\n mid = (mid + Math.imul(ah2, bl4)) | 0;\n hi = (hi + Math.imul(ah2, bh4)) | 0;\n lo = (lo + Math.imul(al1, bl5)) | 0;\n mid = (mid + Math.imul(al1, bh5)) | 0;\n mid = (mid + Math.imul(ah1, bl5)) | 0;\n hi = (hi + Math.imul(ah1, bh5)) | 0;\n lo = (lo + Math.imul(al0, bl6)) | 0;\n mid = (mid + Math.imul(al0, bh6)) | 0;\n mid = (mid + Math.imul(ah0, bl6)) | 0;\n hi = (hi + Math.imul(ah0, bh6)) | 0;\n var w6 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w6 >>> 26)) | 0;\n w6 &= 0x3ffffff;\n /* k = 7 */\n lo = Math.imul(al7, bl0);\n mid = Math.imul(al7, bh0);\n mid = (mid + Math.imul(ah7, bl0)) | 0;\n hi = Math.imul(ah7, bh0);\n lo = (lo + Math.imul(al6, bl1)) | 0;\n mid = (mid + Math.imul(al6, bh1)) | 0;\n mid = (mid + Math.imul(ah6, bl1)) | 0;\n hi = (hi + Math.imul(ah6, bh1)) | 0;\n lo = (lo + Math.imul(al5, bl2)) | 0;\n mid = (mid + Math.imul(al5, bh2)) | 0;\n mid = (mid + Math.imul(ah5, bl2)) | 0;\n hi = (hi + Math.imul(ah5, bh2)) | 0;\n lo = (lo + Math.imul(al4, bl3)) | 0;\n mid = (mid + Math.imul(al4, bh3)) | 0;\n mid = (mid + Math.imul(ah4, bl3)) | 0;\n hi = (hi + Math.imul(ah4, bh3)) | 0;\n lo = (lo + Math.imul(al3, bl4)) | 0;\n mid = (mid + Math.imul(al3, bh4)) | 0;\n mid = (mid + Math.imul(ah3, bl4)) | 0;\n hi = (hi + Math.imul(ah3, bh4)) | 0;\n lo = (lo + Math.imul(al2, bl5)) | 0;\n mid = (mid + Math.imul(al2, bh5)) | 0;\n mid = (mid + Math.imul(ah2, bl5)) | 0;\n hi = (hi + Math.imul(ah2, bh5)) | 0;\n lo = (lo + Math.imul(al1, bl6)) | 0;\n mid = (mid + Math.imul(al1, bh6)) | 0;\n mid = (mid + Math.imul(ah1, bl6)) | 0;\n hi = (hi + Math.imul(ah1, bh6)) | 0;\n lo = (lo + Math.imul(al0, bl7)) | 0;\n mid = (mid + Math.imul(al0, bh7)) | 0;\n mid = (mid + Math.imul(ah0, bl7)) | 0;\n hi = (hi + Math.imul(ah0, bh7)) | 0;\n var w7 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w7 >>> 26)) | 0;\n w7 &= 0x3ffffff;\n /* k = 8 */\n lo = Math.imul(al8, bl0);\n mid = Math.imul(al8, bh0);\n mid = (mid + Math.imul(ah8, bl0)) | 0;\n hi = Math.imul(ah8, bh0);\n lo = (lo + Math.imul(al7, bl1)) | 0;\n mid = (mid + Math.imul(al7, bh1)) | 0;\n mid = (mid + Math.imul(ah7, bl1)) | 0;\n hi = (hi + Math.imul(ah7, bh1)) | 0;\n lo = (lo + Math.imul(al6, bl2)) | 0;\n mid = (mid + Math.imul(al6, bh2)) | 0;\n mid = (mid + Math.imul(ah6, bl2)) | 0;\n hi = (hi + Math.imul(ah6, bh2)) | 0;\n lo = (lo + Math.imul(al5, bl3)) | 0;\n mid = (mid + Math.imul(al5, bh3)) | 0;\n mid = (mid + Math.imul(ah5, bl3)) | 0;\n hi = (hi + Math.imul(ah5, bh3)) | 0;\n lo = (lo + Math.imul(al4, bl4)) | 0;\n mid = (mid + Math.imul(al4, bh4)) | 0;\n mid = (mid + Math.imul(ah4, bl4)) | 0;\n hi = (hi + Math.imul(ah4, bh4)) | 0;\n lo = (lo + Math.imul(al3, bl5)) | 0;\n mid = (mid + Math.imul(al3, bh5)) | 0;\n mid = (mid + Math.imul(ah3, bl5)) | 0;\n hi = (hi + Math.imul(ah3, bh5)) | 0;\n lo = (lo + Math.imul(al2, bl6)) | 0;\n mid = (mid + Math.imul(al2, bh6)) | 0;\n mid = (mid + Math.imul(ah2, bl6)) | 0;\n hi = (hi + Math.imul(ah2, bh6)) | 0;\n lo = (lo + Math.imul(al1, bl7)) | 0;\n mid = (mid + Math.imul(al1, bh7)) | 0;\n mid = (mid + Math.imul(ah1, bl7)) | 0;\n hi = (hi + Math.imul(ah1, bh7)) | 0;\n lo = (lo + Math.imul(al0, bl8)) | 0;\n mid = (mid + Math.imul(al0, bh8)) | 0;\n mid = (mid + Math.imul(ah0, bl8)) | 0;\n hi = (hi + Math.imul(ah0, bh8)) | 0;\n var w8 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w8 >>> 26)) | 0;\n w8 &= 0x3ffffff;\n /* k = 9 */\n lo = Math.imul(al9, bl0);\n mid = Math.imul(al9, bh0);\n mid = (mid + Math.imul(ah9, bl0)) | 0;\n hi = Math.imul(ah9, bh0);\n lo = (lo + Math.imul(al8, bl1)) | 0;\n mid = (mid + Math.imul(al8, bh1)) | 0;\n mid = (mid + Math.imul(ah8, bl1)) | 0;\n hi = (hi + Math.imul(ah8, bh1)) | 0;\n lo = (lo + Math.imul(al7, bl2)) | 0;\n mid = (mid + Math.imul(al7, bh2)) | 0;\n mid = (mid + Math.imul(ah7, bl2)) | 0;\n hi = (hi + Math.imul(ah7, bh2)) | 0;\n lo = (lo + Math.imul(al6, bl3)) | 0;\n mid = (mid + Math.imul(al6, bh3)) | 0;\n mid = (mid + Math.imul(ah6, bl3)) | 0;\n hi = (hi + Math.imul(ah6, bh3)) | 0;\n lo = (lo + Math.imul(al5, bl4)) | 0;\n mid = (mid + Math.imul(al5, bh4)) | 0;\n mid = (mid + Math.imul(ah5, bl4)) | 0;\n hi = (hi + Math.imul(ah5, bh4)) | 0;\n lo = (lo + Math.imul(al4, bl5)) | 0;\n mid = (mid + Math.imul(al4, bh5)) | 0;\n mid = (mid + Math.imul(ah4, bl5)) | 0;\n hi = (hi + Math.imul(ah4, bh5)) | 0;\n lo = (lo + Math.imul(al3, bl6)) | 0;\n mid = (mid + Math.imul(al3, bh6)) | 0;\n mid = (mid + Math.imul(ah3, bl6)) | 0;\n hi = (hi + Math.imul(ah3, bh6)) | 0;\n lo = (lo + Math.imul(al2, bl7)) | 0;\n mid = (mid + Math.imul(al2, bh7)) | 0;\n mid = (mid + Math.imul(ah2, bl7)) | 0;\n hi = (hi + Math.imul(ah2, bh7)) | 0;\n lo = (lo + Math.imul(al1, bl8)) | 0;\n mid = (mid + Math.imul(al1, bh8)) | 0;\n mid = (mid + Math.imul(ah1, bl8)) | 0;\n hi = (hi + Math.imul(ah1, bh8)) | 0;\n lo = (lo + Math.imul(al0, bl9)) | 0;\n mid = (mid + Math.imul(al0, bh9)) | 0;\n mid = (mid + Math.imul(ah0, bl9)) | 0;\n hi = (hi + Math.imul(ah0, bh9)) | 0;\n var w9 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w9 >>> 26)) | 0;\n w9 &= 0x3ffffff;\n /* k = 10 */\n lo = Math.imul(al9, bl1);\n mid = Math.imul(al9, bh1);\n mid = (mid + Math.imul(ah9, bl1)) | 0;\n hi = Math.imul(ah9, bh1);\n lo = (lo + Math.imul(al8, bl2)) | 0;\n mid = (mid + Math.imul(al8, bh2)) | 0;\n mid = (mid + Math.imul(ah8, bl2)) | 0;\n hi = (hi + Math.imul(ah8, bh2)) | 0;\n lo = (lo + Math.imul(al7, bl3)) | 0;\n mid = (mid + Math.imul(al7, bh3)) | 0;\n mid = (mid + Math.imul(ah7, bl3)) | 0;\n hi = (hi + Math.imul(ah7, bh3)) | 0;\n lo = (lo + Math.imul(al6, bl4)) | 0;\n mid = (mid + Math.imul(al6, bh4)) | 0;\n mid = (mid + Math.imul(ah6, bl4)) | 0;\n hi = (hi + Math.imul(ah6, bh4)) | 0;\n lo = (lo + Math.imul(al5, bl5)) | 0;\n mid = (mid + Math.imul(al5, bh5)) | 0;\n mid = (mid + Math.imul(ah5, bl5)) | 0;\n hi = (hi + Math.imul(ah5, bh5)) | 0;\n lo = (lo + Math.imul(al4, bl6)) | 0;\n mid = (mid + Math.imul(al4, bh6)) | 0;\n mid = (mid + Math.imul(ah4, bl6)) | 0;\n hi = (hi + Math.imul(ah4, bh6)) | 0;\n lo = (lo + Math.imul(al3, bl7)) | 0;\n mid = (mid + Math.imul(al3, bh7)) | 0;\n mid = (mid + Math.imul(ah3, bl7)) | 0;\n hi = (hi + Math.imul(ah3, bh7)) | 0;\n lo = (lo + Math.imul(al2, bl8)) | 0;\n mid = (mid + Math.imul(al2, bh8)) | 0;\n mid = (mid + Math.imul(ah2, bl8)) | 0;\n hi = (hi + Math.imul(ah2, bh8)) | 0;\n lo = (lo + Math.imul(al1, bl9)) | 0;\n mid = (mid + Math.imul(al1, bh9)) | 0;\n mid = (mid + Math.imul(ah1, bl9)) | 0;\n hi = (hi + Math.imul(ah1, bh9)) | 0;\n var w10 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w10 >>> 26)) | 0;\n w10 &= 0x3ffffff;\n /* k = 11 */\n lo = Math.imul(al9, bl2);\n mid = Math.imul(al9, bh2);\n mid = (mid + Math.imul(ah9, bl2)) | 0;\n hi = Math.imul(ah9, bh2);\n lo = (lo + Math.imul(al8, bl3)) | 0;\n mid = (mid + Math.imul(al8, bh3)) | 0;\n mid = (mid + Math.imul(ah8, bl3)) | 0;\n hi = (hi + Math.imul(ah8, bh3)) | 0;\n lo = (lo + Math.imul(al7, bl4)) | 0;\n mid = (mid + Math.imul(al7, bh4)) | 0;\n mid = (mid + Math.imul(ah7, bl4)) | 0;\n hi = (hi + Math.imul(ah7, bh4)) | 0;\n lo = (lo + Math.imul(al6, bl5)) | 0;\n mid = (mid + Math.imul(al6, bh5)) | 0;\n mid = (mid + Math.imul(ah6, bl5)) | 0;\n hi = (hi + Math.imul(ah6, bh5)) | 0;\n lo = (lo + Math.imul(al5, bl6)) | 0;\n mid = (mid + Math.imul(al5, bh6)) | 0;\n mid = (mid + Math.imul(ah5, bl6)) | 0;\n hi = (hi + Math.imul(ah5, bh6)) | 0;\n lo = (lo + Math.imul(al4, bl7)) | 0;\n mid = (mid + Math.imul(al4, bh7)) | 0;\n mid = (mid + Math.imul(ah4, bl7)) | 0;\n hi = (hi + Math.imul(ah4, bh7)) | 0;\n lo = (lo + Math.imul(al3, bl8)) | 0;\n mid = (mid + Math.imul(al3, bh8)) | 0;\n mid = (mid + Math.imul(ah3, bl8)) | 0;\n hi = (hi + Math.imul(ah3, bh8)) | 0;\n lo = (lo + Math.imul(al2, bl9)) | 0;\n mid = (mid + Math.imul(al2, bh9)) | 0;\n mid = (mid + Math.imul(ah2, bl9)) | 0;\n hi = (hi + Math.imul(ah2, bh9)) | 0;\n var w11 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w11 >>> 26)) | 0;\n w11 &= 0x3ffffff;\n /* k = 12 */\n lo = Math.imul(al9, bl3);\n mid = Math.imul(al9, bh3);\n mid = (mid + Math.imul(ah9, bl3)) | 0;\n hi = Math.imul(ah9, bh3);\n lo = (lo + Math.imul(al8, bl4)) | 0;\n mid = (mid + Math.imul(al8, bh4)) | 0;\n mid = (mid + Math.imul(ah8, bl4)) | 0;\n hi = (hi + Math.imul(ah8, bh4)) | 0;\n lo = (lo + Math.imul(al7, bl5)) | 0;\n mid = (mid + Math.imul(al7, bh5)) | 0;\n mid = (mid + Math.imul(ah7, bl5)) | 0;\n hi = (hi + Math.imul(ah7, bh5)) | 0;\n lo = (lo + Math.imul(al6, bl6)) | 0;\n mid = (mid + Math.imul(al6, bh6)) | 0;\n mid = (mid + Math.imul(ah6, bl6)) | 0;\n hi = (hi + Math.imul(ah6, bh6)) | 0;\n lo = (lo + Math.imul(al5, bl7)) | 0;\n mid = (mid + Math.imul(al5, bh7)) | 0;\n mid = (mid + Math.imul(ah5, bl7)) | 0;\n hi = (hi + Math.imul(ah5, bh7)) | 0;\n lo = (lo + Math.imul(al4, bl8)) | 0;\n mid = (mid + Math.imul(al4, bh8)) | 0;\n mid = (mid + Math.imul(ah4, bl8)) | 0;\n hi = (hi + Math.imul(ah4, bh8)) | 0;\n lo = (lo + Math.imul(al3, bl9)) | 0;\n mid = (mid + Math.imul(al3, bh9)) | 0;\n mid = (mid + Math.imul(ah3, bl9)) | 0;\n hi = (hi + Math.imul(ah3, bh9)) | 0;\n var w12 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w12 >>> 26)) | 0;\n w12 &= 0x3ffffff;\n /* k = 13 */\n lo = Math.imul(al9, bl4);\n mid = Math.imul(al9, bh4);\n mid = (mid + Math.imul(ah9, bl4)) | 0;\n hi = Math.imul(ah9, bh4);\n lo = (lo + Math.imul(al8, bl5)) | 0;\n mid = (mid + Math.imul(al8, bh5)) | 0;\n mid = (mid + Math.imul(ah8, bl5)) | 0;\n hi = (hi + Math.imul(ah8, bh5)) | 0;\n lo = (lo + Math.imul(al7, bl6)) | 0;\n mid = (mid + Math.imul(al7, bh6)) | 0;\n mid = (mid + Math.imul(ah7, bl6)) | 0;\n hi = (hi + Math.imul(ah7, bh6)) | 0;\n lo = (lo + Math.imul(al6, bl7)) | 0;\n mid = (mid + Math.imul(al6, bh7)) | 0;\n mid = (mid + Math.imul(ah6, bl7)) | 0;\n hi = (hi + Math.imul(ah6, bh7)) | 0;\n lo = (lo + Math.imul(al5, bl8)) | 0;\n mid = (mid + Math.imul(al5, bh8)) | 0;\n mid = (mid + Math.imul(ah5, bl8)) | 0;\n hi = (hi + Math.imul(ah5, bh8)) | 0;\n lo = (lo + Math.imul(al4, bl9)) | 0;\n mid = (mid + Math.imul(al4, bh9)) | 0;\n mid = (mid + Math.imul(ah4, bl9)) | 0;\n hi = (hi + Math.imul(ah4, bh9)) | 0;\n var w13 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w13 >>> 26)) | 0;\n w13 &= 0x3ffffff;\n /* k = 14 */\n lo = Math.imul(al9, bl5);\n mid = Math.imul(al9, bh5);\n mid = (mid + Math.imul(ah9, bl5)) | 0;\n hi = Math.imul(ah9, bh5);\n lo = (lo + Math.imul(al8, bl6)) | 0;\n mid = (mid + Math.imul(al8, bh6)) | 0;\n mid = (mid + Math.imul(ah8, bl6)) | 0;\n hi = (hi + Math.imul(ah8, bh6)) | 0;\n lo = (lo + Math.imul(al7, bl7)) | 0;\n mid = (mid + Math.imul(al7, bh7)) | 0;\n mid = (mid + Math.imul(ah7, bl7)) | 0;\n hi = (hi + Math.imul(ah7, bh7)) | 0;\n lo = (lo + Math.imul(al6, bl8)) | 0;\n mid = (mid + Math.imul(al6, bh8)) | 0;\n mid = (mid + Math.imul(ah6, bl8)) | 0;\n hi = (hi + Math.imul(ah6, bh8)) | 0;\n lo = (lo + Math.imul(al5, bl9)) | 0;\n mid = (mid + Math.imul(al5, bh9)) | 0;\n mid = (mid + Math.imul(ah5, bl9)) | 0;\n hi = (hi + Math.imul(ah5, bh9)) | 0;\n var w14 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w14 >>> 26)) | 0;\n w14 &= 0x3ffffff;\n /* k = 15 */\n lo = Math.imul(al9, bl6);\n mid = Math.imul(al9, bh6);\n mid = (mid + Math.imul(ah9, bl6)) | 0;\n hi = Math.imul(ah9, bh6);\n lo = (lo + Math.imul(al8, bl7)) | 0;\n mid = (mid + Math.imul(al8, bh7)) | 0;\n mid = (mid + Math.imul(ah8, bl7)) | 0;\n hi = (hi + Math.imul(ah8, bh7)) | 0;\n lo = (lo + Math.imul(al7, bl8)) | 0;\n mid = (mid + Math.imul(al7, bh8)) | 0;\n mid = (mid + Math.imul(ah7, bl8)) | 0;\n hi = (hi + Math.imul(ah7, bh8)) | 0;\n lo = (lo + Math.imul(al6, bl9)) | 0;\n mid = (mid + Math.imul(al6, bh9)) | 0;\n mid = (mid + Math.imul(ah6, bl9)) | 0;\n hi = (hi + Math.imul(ah6, bh9)) | 0;\n var w15 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w15 >>> 26)) | 0;\n w15 &= 0x3ffffff;\n /* k = 16 */\n lo = Math.imul(al9, bl7);\n mid = Math.imul(al9, bh7);\n mid = (mid + Math.imul(ah9, bl7)) | 0;\n hi = Math.imul(ah9, bh7);\n lo = (lo + Math.imul(al8, bl8)) | 0;\n mid = (mid + Math.imul(al8, bh8)) | 0;\n mid = (mid + Math.imul(ah8, bl8)) | 0;\n hi = (hi + Math.imul(ah8, bh8)) | 0;\n lo = (lo + Math.imul(al7, bl9)) | 0;\n mid = (mid + Math.imul(al7, bh9)) | 0;\n mid = (mid + Math.imul(ah7, bl9)) | 0;\n hi = (hi + Math.imul(ah7, bh9)) | 0;\n var w16 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w16 >>> 26)) | 0;\n w16 &= 0x3ffffff;\n /* k = 17 */\n lo = Math.imul(al9, bl8);\n mid = Math.imul(al9, bh8);\n mid = (mid + Math.imul(ah9, bl8)) | 0;\n hi = Math.imul(ah9, bh8);\n lo = (lo + Math.imul(al8, bl9)) | 0;\n mid = (mid + Math.imul(al8, bh9)) | 0;\n mid = (mid + Math.imul(ah8, bl9)) | 0;\n hi = (hi + Math.imul(ah8, bh9)) | 0;\n var w17 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w17 >>> 26)) | 0;\n w17 &= 0x3ffffff;\n /* k = 18 */\n lo = Math.imul(al9, bl9);\n mid = Math.imul(al9, bh9);\n mid = (mid + Math.imul(ah9, bl9)) | 0;\n hi = Math.imul(ah9, bh9);\n var w18 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n c = (((hi + (mid >>> 13)) | 0) + (w18 >>> 26)) | 0;\n w18 &= 0x3ffffff;\n o[0] = w0;\n o[1] = w1;\n o[2] = w2;\n o[3] = w3;\n o[4] = w4;\n o[5] = w5;\n o[6] = w6;\n o[7] = w7;\n o[8] = w8;\n o[9] = w9;\n o[10] = w10;\n o[11] = w11;\n o[12] = w12;\n o[13] = w13;\n o[14] = w14;\n o[15] = w15;\n o[16] = w16;\n o[17] = w17;\n o[18] = w18;\n if (c !== 0) {\n o[19] = c;\n out.length++;\n }\n return out;\n };\n\n // Polyfill comb\n if (!Math.imul) {\n comb10MulTo = smallMulTo;\n }\n\n function bigMulTo (self, num, out) {\n out.negative = num.negative ^ self.negative;\n out.length = self.length + num.length;\n\n var carry = 0;\n var hncarry = 0;\n for (var k = 0; k < out.length - 1; k++) {\n // Sum all words with the same `i + j = k` and accumulate `ncarry`,\n // note that ncarry could be >= 0x3ffffff\n var ncarry = hncarry;\n hncarry = 0;\n var rword = carry & 0x3ffffff;\n var maxJ = Math.min(k, num.length - 1);\n for (var j = Math.max(0, k - self.length + 1); j <= maxJ; j++) {\n var i = k - j;\n var a = self.words[i] | 0;\n var b = num.words[j] | 0;\n var r = a * b;\n\n var lo = r & 0x3ffffff;\n ncarry = (ncarry + ((r / 0x4000000) | 0)) | 0;\n lo = (lo + rword) | 0;\n rword = lo & 0x3ffffff;\n ncarry = (ncarry + (lo >>> 26)) | 0;\n\n hncarry += ncarry >>> 26;\n ncarry &= 0x3ffffff;\n }\n out.words[k] = rword;\n carry = ncarry;\n ncarry = hncarry;\n }\n if (carry !== 0) {\n out.words[k] = carry;\n } else {\n out.length--;\n }\n\n return out.strip();\n }\n\n function jumboMulTo (self, num, out) {\n var fftm = new FFTM();\n return fftm.mulp(self, num, out);\n }\n\n BN.prototype.mulTo = function mulTo (num, out) {\n var res;\n var len = this.length + num.length;\n if (this.length === 10 && num.length === 10) {\n res = comb10MulTo(this, num, out);\n } else if (len < 63) {\n res = smallMulTo(this, num, out);\n } else if (len < 1024) {\n res = bigMulTo(this, num, out);\n } else {\n res = jumboMulTo(this, num, out);\n }\n\n return res;\n };\n\n // Cooley-Tukey algorithm for FFT\n // slightly revisited to rely on looping instead of recursion\n\n function FFTM (x, y) {\n this.x = x;\n this.y = y;\n }\n\n FFTM.prototype.makeRBT = function makeRBT (N) {\n var t = new Array(N);\n var l = BN.prototype._countBits(N) - 1;\n for (var i = 0; i < N; i++) {\n t[i] = this.revBin(i, l, N);\n }\n\n return t;\n };\n\n // Returns binary-reversed representation of `x`\n FFTM.prototype.revBin = function revBin (x, l, N) {\n if (x === 0 || x === N - 1) return x;\n\n var rb = 0;\n for (var i = 0; i < l; i++) {\n rb |= (x & 1) << (l - i - 1);\n x >>= 1;\n }\n\n return rb;\n };\n\n // Performs \"tweedling\" phase, therefore 'emulating'\n // behaviour of the recursive algorithm\n FFTM.prototype.permute = function permute (rbt, rws, iws, rtws, itws, N) {\n for (var i = 0; i < N; i++) {\n rtws[i] = rws[rbt[i]];\n itws[i] = iws[rbt[i]];\n }\n };\n\n FFTM.prototype.transform = function transform (rws, iws, rtws, itws, N, rbt) {\n this.permute(rbt, rws, iws, rtws, itws, N);\n\n for (var s = 1; s < N; s <<= 1) {\n var l = s << 1;\n\n var rtwdf = Math.cos(2 * Math.PI / l);\n var itwdf = Math.sin(2 * Math.PI / l);\n\n for (var p = 0; p < N; p += l) {\n var rtwdf_ = rtwdf;\n var itwdf_ = itwdf;\n\n for (var j = 0; j < s; j++) {\n var re = rtws[p + j];\n var ie = itws[p + j];\n\n var ro = rtws[p + j + s];\n var io = itws[p + j + s];\n\n var rx = rtwdf_ * ro - itwdf_ * io;\n\n io = rtwdf_ * io + itwdf_ * ro;\n ro = rx;\n\n rtws[p + j] = re + ro;\n itws[p + j] = ie + io;\n\n rtws[p + j + s] = re - ro;\n itws[p + j + s] = ie - io;\n\n /* jshint maxdepth : false */\n if (j !== l) {\n rx = rtwdf * rtwdf_ - itwdf * itwdf_;\n\n itwdf_ = rtwdf * itwdf_ + itwdf * rtwdf_;\n rtwdf_ = rx;\n }\n }\n }\n }\n };\n\n FFTM.prototype.guessLen13b = function guessLen13b (n, m) {\n var N = Math.max(m, n) | 1;\n var odd = N & 1;\n var i = 0;\n for (N = N / 2 | 0; N; N = N >>> 1) {\n i++;\n }\n\n return 1 << i + 1 + odd;\n };\n\n FFTM.prototype.conjugate = function conjugate (rws, iws, N) {\n if (N <= 1) return;\n\n for (var i = 0; i < N / 2; i++) {\n var t = rws[i];\n\n rws[i] = rws[N - i - 1];\n rws[N - i - 1] = t;\n\n t = iws[i];\n\n iws[i] = -iws[N - i - 1];\n iws[N - i - 1] = -t;\n }\n };\n\n FFTM.prototype.normalize13b = function normalize13b (ws, N) {\n var carry = 0;\n for (var i = 0; i < N / 2; i++) {\n var w = Math.round(ws[2 * i + 1] / N) * 0x2000 +\n Math.round(ws[2 * i] / N) +\n carry;\n\n ws[i] = w & 0x3ffffff;\n\n if (w < 0x4000000) {\n carry = 0;\n } else {\n carry = w / 0x4000000 | 0;\n }\n }\n\n return ws;\n };\n\n FFTM.prototype.convert13b = function convert13b (ws, len, rws, N) {\n var carry = 0;\n for (var i = 0; i < len; i++) {\n carry = carry + (ws[i] | 0);\n\n rws[2 * i] = carry & 0x1fff; carry = carry >>> 13;\n rws[2 * i + 1] = carry & 0x1fff; carry = carry >>> 13;\n }\n\n // Pad with zeroes\n for (i = 2 * len; i < N; ++i) {\n rws[i] = 0;\n }\n\n assert(carry === 0);\n assert((carry & ~0x1fff) === 0);\n };\n\n FFTM.prototype.stub = function stub (N) {\n var ph = new Array(N);\n for (var i = 0; i < N; i++) {\n ph[i] = 0;\n }\n\n return ph;\n };\n\n FFTM.prototype.mulp = function mulp (x, y, out) {\n var N = 2 * this.guessLen13b(x.length, y.length);\n\n var rbt = this.makeRBT(N);\n\n var _ = this.stub(N);\n\n var rws = new Array(N);\n var rwst = new Array(N);\n var iwst = new Array(N);\n\n var nrws = new Array(N);\n var nrwst = new Array(N);\n var niwst = new Array(N);\n\n var rmws = out.words;\n rmws.length = N;\n\n this.convert13b(x.words, x.length, rws, N);\n this.convert13b(y.words, y.length, nrws, N);\n\n this.transform(rws, _, rwst, iwst, N, rbt);\n this.transform(nrws, _, nrwst, niwst, N, rbt);\n\n for (var i = 0; i < N; i++) {\n var rx = rwst[i] * nrwst[i] - iwst[i] * niwst[i];\n iwst[i] = rwst[i] * niwst[i] + iwst[i] * nrwst[i];\n rwst[i] = rx;\n }\n\n this.conjugate(rwst, iwst, N);\n this.transform(rwst, iwst, rmws, _, N, rbt);\n this.conjugate(rmws, _, N);\n this.normalize13b(rmws, N);\n\n out.negative = x.negative ^ y.negative;\n out.length = x.length + y.length;\n return out.strip();\n };\n\n // Multiply `this` by `num`\n BN.prototype.mul = function mul (num) {\n var out = new BN(null);\n out.words = new Array(this.length + num.length);\n return this.mulTo(num, out);\n };\n\n // Multiply employing FFT\n BN.prototype.mulf = function mulf (num) {\n var out = new BN(null);\n out.words = new Array(this.length + num.length);\n return jumboMulTo(this, num, out);\n };\n\n // In-place Multiplication\n BN.prototype.imul = function imul (num) {\n return this.clone().mulTo(num, this);\n };\n\n BN.prototype.imuln = function imuln (num) {\n assert(typeof num === 'number');\n assert(num < 0x4000000);\n\n // Carry\n var carry = 0;\n for (var i = 0; i < this.length; i++) {\n var w = (this.words[i] | 0) * num;\n var lo = (w & 0x3ffffff) + (carry & 0x3ffffff);\n carry >>= 26;\n carry += (w / 0x4000000) | 0;\n // NOTE: lo is 27bit maximum\n carry += lo >>> 26;\n this.words[i] = lo & 0x3ffffff;\n }\n\n if (carry !== 0) {\n this.words[i] = carry;\n this.length++;\n }\n\n return this;\n };\n\n BN.prototype.muln = function muln (num) {\n return this.clone().imuln(num);\n };\n\n // `this` * `this`\n BN.prototype.sqr = function sqr () {\n return this.mul(this);\n };\n\n // `this` * `this` in-place\n BN.prototype.isqr = function isqr () {\n return this.imul(this.clone());\n };\n\n // Math.pow(`this`, `num`)\n BN.prototype.pow = function pow (num) {\n var w = toBitArray(num);\n if (w.length === 0) return new BN(1);\n\n // Skip leading zeroes\n var res = this;\n for (var i = 0; i < w.length; i++, res = res.sqr()) {\n if (w[i] !== 0) break;\n }\n\n if (++i < w.length) {\n for (var q = res.sqr(); i < w.length; i++, q = q.sqr()) {\n if (w[i] === 0) continue;\n\n res = res.mul(q);\n }\n }\n\n return res;\n };\n\n // Shift-left in-place\n BN.prototype.iushln = function iushln (bits) {\n assert(typeof bits === 'number' && bits >= 0);\n var r = bits % 26;\n var s = (bits - r) / 26;\n var carryMask = (0x3ffffff >>> (26 - r)) << (26 - r);\n var i;\n\n if (r !== 0) {\n var carry = 0;\n\n for (i = 0; i < this.length; i++) {\n var newCarry = this.words[i] & carryMask;\n var c = ((this.words[i] | 0) - newCarry) << r;\n this.words[i] = c | carry;\n carry = newCarry >>> (26 - r);\n }\n\n if (carry) {\n this.words[i] = carry;\n this.length++;\n }\n }\n\n if (s !== 0) {\n for (i = this.length - 1; i >= 0; i--) {\n this.words[i + s] = this.words[i];\n }\n\n for (i = 0; i < s; i++) {\n this.words[i] = 0;\n }\n\n this.length += s;\n }\n\n return this.strip();\n };\n\n BN.prototype.ishln = function ishln (bits) {\n // TODO(indutny): implement me\n assert(this.negative === 0);\n return this.iushln(bits);\n };\n\n // Shift-right in-place\n // NOTE: `hint` is a lowest bit before trailing zeroes\n // NOTE: if `extended` is present - it will be filled with destroyed bits\n BN.prototype.iushrn = function iushrn (bits, hint, extended) {\n assert(typeof bits === 'number' && bits >= 0);\n var h;\n if (hint) {\n h = (hint - (hint % 26)) / 26;\n } else {\n h = 0;\n }\n\n var r = bits % 26;\n var s = Math.min((bits - r) / 26, this.length);\n var mask = 0x3ffffff ^ ((0x3ffffff >>> r) << r);\n var maskedWords = extended;\n\n h -= s;\n h = Math.max(0, h);\n\n // Extended mode, copy masked part\n if (maskedWords) {\n for (var i = 0; i < s; i++) {\n maskedWords.words[i] = this.words[i];\n }\n maskedWords.length = s;\n }\n\n if (s === 0) {\n // No-op, we should not move anything at all\n } else if (this.length > s) {\n this.length -= s;\n for (i = 0; i < this.length; i++) {\n this.words[i] = this.words[i + s];\n }\n } else {\n this.words[0] = 0;\n this.length = 1;\n }\n\n var carry = 0;\n for (i = this.length - 1; i >= 0 && (carry !== 0 || i >= h); i--) {\n var word = this.words[i] | 0;\n this.words[i] = (carry << (26 - r)) | (word >>> r);\n carry = word & mask;\n }\n\n // Push carried bits as a mask\n if (maskedWords && carry !== 0) {\n maskedWords.words[maskedWords.length++] = carry;\n }\n\n if (this.length === 0) {\n this.words[0] = 0;\n this.length = 1;\n }\n\n return this.strip();\n };\n\n BN.prototype.ishrn = function ishrn (bits, hint, extended) {\n // TODO(indutny): implement me\n assert(this.negative === 0);\n return this.iushrn(bits, hint, extended);\n };\n\n // Shift-left\n BN.prototype.shln = function shln (bits) {\n return this.clone().ishln(bits);\n };\n\n BN.prototype.ushln = function ushln (bits) {\n return this.clone().iushln(bits);\n };\n\n // Shift-right\n BN.prototype.shrn = function shrn (bits) {\n return this.clone().ishrn(bits);\n };\n\n BN.prototype.ushrn = function ushrn (bits) {\n return this.clone().iushrn(bits);\n };\n\n // Test if n bit is set\n BN.prototype.testn = function testn (bit) {\n assert(typeof bit === 'number' && bit >= 0);\n var r = bit % 26;\n var s = (bit - r) / 26;\n var q = 1 << r;\n\n // Fast case: bit is much higher than all existing words\n if (this.length <= s) return false;\n\n // Check bit and return\n var w = this.words[s];\n\n return !!(w & q);\n };\n\n // Return only lowers bits of number (in-place)\n BN.prototype.imaskn = function imaskn (bits) {\n assert(typeof bits === 'number' && bits >= 0);\n var r = bits % 26;\n var s = (bits - r) / 26;\n\n assert(this.negative === 0, 'imaskn works only with positive numbers');\n\n if (this.length <= s) {\n return this;\n }\n\n if (r !== 0) {\n s++;\n }\n this.length = Math.min(s, this.length);\n\n if (r !== 0) {\n var mask = 0x3ffffff ^ ((0x3ffffff >>> r) << r);\n this.words[this.length - 1] &= mask;\n }\n\n return this.strip();\n };\n\n // Return only lowers bits of number\n BN.prototype.maskn = function maskn (bits) {\n return this.clone().imaskn(bits);\n };\n\n // Add plain number `num` to `this`\n BN.prototype.iaddn = function iaddn (num) {\n assert(typeof num === 'number');\n assert(num < 0x4000000);\n if (num < 0) return this.isubn(-num);\n\n // Possible sign change\n if (this.negative !== 0) {\n if (this.length === 1 && (this.words[0] | 0) < num) {\n this.words[0] = num - (this.words[0] | 0);\n this.negative = 0;\n return this;\n }\n\n this.negative = 0;\n this.isubn(num);\n this.negative = 1;\n return this;\n }\n\n // Add without checks\n return this._iaddn(num);\n };\n\n BN.prototype._iaddn = function _iaddn (num) {\n this.words[0] += num;\n\n // Carry\n for (var i = 0; i < this.length && this.words[i] >= 0x4000000; i++) {\n this.words[i] -= 0x4000000;\n if (i === this.length - 1) {\n this.words[i + 1] = 1;\n } else {\n this.words[i + 1]++;\n }\n }\n this.length = Math.max(this.length, i + 1);\n\n return this;\n };\n\n // Subtract plain number `num` from `this`\n BN.prototype.isubn = function isubn (num) {\n assert(typeof num === 'number');\n assert(num < 0x4000000);\n if (num < 0) return this.iaddn(-num);\n\n if (this.negative !== 0) {\n this.negative = 0;\n this.iaddn(num);\n this.negative = 1;\n return this;\n }\n\n this.words[0] -= num;\n\n if (this.length === 1 && this.words[0] < 0) {\n this.words[0] = -this.words[0];\n this.negative = 1;\n } else {\n // Carry\n for (var i = 0; i < this.length && this.words[i] < 0; i++) {\n this.words[i] += 0x4000000;\n this.words[i + 1] -= 1;\n }\n }\n\n return this.strip();\n };\n\n BN.prototype.addn = function addn (num) {\n return this.clone().iaddn(num);\n };\n\n BN.prototype.subn = function subn (num) {\n return this.clone().isubn(num);\n };\n\n BN.prototype.iabs = function iabs () {\n this.negative = 0;\n\n return this;\n };\n\n BN.prototype.abs = function abs () {\n return this.clone().iabs();\n };\n\n BN.prototype._ishlnsubmul = function _ishlnsubmul (num, mul, shift) {\n var len = num.length + shift;\n var i;\n\n this._expand(len);\n\n var w;\n var carry = 0;\n for (i = 0; i < num.length; i++) {\n w = (this.words[i + shift] | 0) + carry;\n var right = (num.words[i] | 0) * mul;\n w -= right & 0x3ffffff;\n carry = (w >> 26) - ((right / 0x4000000) | 0);\n this.words[i + shift] = w & 0x3ffffff;\n }\n for (; i < this.length - shift; i++) {\n w = (this.words[i + shift] | 0) + carry;\n carry = w >> 26;\n this.words[i + shift] = w & 0x3ffffff;\n }\n\n if (carry === 0) return this.strip();\n\n // Subtraction overflow\n assert(carry === -1);\n carry = 0;\n for (i = 0; i < this.length; i++) {\n w = -(this.words[i] | 0) + carry;\n carry = w >> 26;\n this.words[i] = w & 0x3ffffff;\n }\n this.negative = 1;\n\n return this.strip();\n };\n\n BN.prototype._wordDiv = function _wordDiv (num, mode) {\n var shift = this.length - num.length;\n\n var a = this.clone();\n var b = num;\n\n // Normalize\n var bhi = b.words[b.length - 1] | 0;\n var bhiBits = this._countBits(bhi);\n shift = 26 - bhiBits;\n if (shift !== 0) {\n b = b.ushln(shift);\n a.iushln(shift);\n bhi = b.words[b.length - 1] | 0;\n }\n\n // Initialize quotient\n var m = a.length - b.length;\n var q;\n\n if (mode !== 'mod') {\n q = new BN(null);\n q.length = m + 1;\n q.words = new Array(q.length);\n for (var i = 0; i < q.length; i++) {\n q.words[i] = 0;\n }\n }\n\n var diff = a.clone()._ishlnsubmul(b, 1, m);\n if (diff.negative === 0) {\n a = diff;\n if (q) {\n q.words[m] = 1;\n }\n }\n\n for (var j = m - 1; j >= 0; j--) {\n var qj = (a.words[b.length + j] | 0) * 0x4000000 +\n (a.words[b.length + j - 1] | 0);\n\n // NOTE: (qj / bhi) is (0x3ffffff * 0x4000000 + 0x3ffffff) / 0x2000000 max\n // (0x7ffffff)\n qj = Math.min((qj / bhi) | 0, 0x3ffffff);\n\n a._ishlnsubmul(b, qj, j);\n while (a.negative !== 0) {\n qj--;\n a.negative = 0;\n a._ishlnsubmul(b, 1, j);\n if (!a.isZero()) {\n a.negative ^= 1;\n }\n }\n if (q) {\n q.words[j] = qj;\n }\n }\n if (q) {\n q.strip();\n }\n a.strip();\n\n // Denormalize\n if (mode !== 'div' && shift !== 0) {\n a.iushrn(shift);\n }\n\n return {\n div: q || null,\n mod: a\n };\n };\n\n // NOTE: 1) `mode` can be set to `mod` to request mod only,\n // to `div` to request div only, or be absent to\n // request both div & mod\n // 2) `positive` is true if unsigned mod is requested\n BN.prototype.divmod = function divmod (num, mode, positive) {\n assert(!num.isZero());\n\n if (this.isZero()) {\n return {\n div: new BN(0),\n mod: new BN(0)\n };\n }\n\n var div, mod, res;\n if (this.negative !== 0 && num.negative === 0) {\n res = this.neg().divmod(num, mode);\n\n if (mode !== 'mod') {\n div = res.div.neg();\n }\n\n if (mode !== 'div') {\n mod = res.mod.neg();\n if (positive && mod.negative !== 0) {\n mod.iadd(num);\n }\n }\n\n return {\n div: div,\n mod: mod\n };\n }\n\n if (this.negative === 0 && num.negative !== 0) {\n res = this.divmod(num.neg(), mode);\n\n if (mode !== 'mod') {\n div = res.div.neg();\n }\n\n return {\n div: div,\n mod: res.mod\n };\n }\n\n if ((this.negative & num.negative) !== 0) {\n res = this.neg().divmod(num.neg(), mode);\n\n if (mode !== 'div') {\n mod = res.mod.neg();\n if (positive && mod.negative !== 0) {\n mod.isub(num);\n }\n }\n\n return {\n div: res.div,\n mod: mod\n };\n }\n\n // Both numbers are positive at this point\n\n // Strip both numbers to approximate shift value\n if (num.length > this.length || this.cmp(num) < 0) {\n return {\n div: new BN(0),\n mod: this\n };\n }\n\n // Very short reduction\n if (num.length === 1) {\n if (mode === 'div') {\n return {\n div: this.divn(num.words[0]),\n mod: null\n };\n }\n\n if (mode === 'mod') {\n return {\n div: null,\n mod: new BN(this.modn(num.words[0]))\n };\n }\n\n return {\n div: this.divn(num.words[0]),\n mod: new BN(this.modn(num.words[0]))\n };\n }\n\n return this._wordDiv(num, mode);\n };\n\n // Find `this` / `num`\n BN.prototype.div = function div (num) {\n return this.divmod(num, 'div', false).div;\n };\n\n // Find `this` % `num`\n BN.prototype.mod = function mod (num) {\n return this.divmod(num, 'mod', false).mod;\n };\n\n BN.prototype.umod = function umod (num) {\n return this.divmod(num, 'mod', true).mod;\n };\n\n // Find Round(`this` / `num`)\n BN.prototype.divRound = function divRound (num) {\n var dm = this.divmod(num);\n\n // Fast case - exact division\n if (dm.mod.isZero()) return dm.div;\n\n var mod = dm.div.negative !== 0 ? dm.mod.isub(num) : dm.mod;\n\n var half = num.ushrn(1);\n var r2 = num.andln(1);\n var cmp = mod.cmp(half);\n\n // Round down\n if (cmp < 0 || r2 === 1 && cmp === 0) return dm.div;\n\n // Round up\n return dm.div.negative !== 0 ? dm.div.isubn(1) : dm.div.iaddn(1);\n };\n\n BN.prototype.modn = function modn (num) {\n assert(num <= 0x3ffffff);\n var p = (1 << 26) % num;\n\n var acc = 0;\n for (var i = this.length - 1; i >= 0; i--) {\n acc = (p * acc + (this.words[i] | 0)) % num;\n }\n\n return acc;\n };\n\n // In-place division by number\n BN.prototype.idivn = function idivn (num) {\n assert(num <= 0x3ffffff);\n\n var carry = 0;\n for (var i = this.length - 1; i >= 0; i--) {\n var w = (this.words[i] | 0) + carry * 0x4000000;\n this.words[i] = (w / num) | 0;\n carry = w % num;\n }\n\n return this.strip();\n };\n\n BN.prototype.divn = function divn (num) {\n return this.clone().idivn(num);\n };\n\n BN.prototype.egcd = function egcd (p) {\n assert(p.negative === 0);\n assert(!p.isZero());\n\n var x = this;\n var y = p.clone();\n\n if (x.negative !== 0) {\n x = x.umod(p);\n } else {\n x = x.clone();\n }\n\n // A * x + B * y = x\n var A = new BN(1);\n var B = new BN(0);\n\n // C * x + D * y = y\n var C = new BN(0);\n var D = new BN(1);\n\n var g = 0;\n\n while (x.isEven() && y.isEven()) {\n x.iushrn(1);\n y.iushrn(1);\n ++g;\n }\n\n var yp = y.clone();\n var xp = x.clone();\n\n while (!x.isZero()) {\n for (var i = 0, im = 1; (x.words[0] & im) === 0 && i < 26; ++i, im <<= 1);\n if (i > 0) {\n x.iushrn(i);\n while (i-- > 0) {\n if (A.isOdd() || B.isOdd()) {\n A.iadd(yp);\n B.isub(xp);\n }\n\n A.iushrn(1);\n B.iushrn(1);\n }\n }\n\n for (var j = 0, jm = 1; (y.words[0] & jm) === 0 && j < 26; ++j, jm <<= 1);\n if (j > 0) {\n y.iushrn(j);\n while (j-- > 0) {\n if (C.isOdd() || D.isOdd()) {\n C.iadd(yp);\n D.isub(xp);\n }\n\n C.iushrn(1);\n D.iushrn(1);\n }\n }\n\n if (x.cmp(y) >= 0) {\n x.isub(y);\n A.isub(C);\n B.isub(D);\n } else {\n y.isub(x);\n C.isub(A);\n D.isub(B);\n }\n }\n\n return {\n a: C,\n b: D,\n gcd: y.iushln(g)\n };\n };\n\n // This is reduced incarnation of the binary EEA\n // above, designated to invert members of the\n // _prime_ fields F(p) at a maximal speed\n BN.prototype._invmp = function _invmp (p) {\n assert(p.negative === 0);\n assert(!p.isZero());\n\n var a = this;\n var b = p.clone();\n\n if (a.negative !== 0) {\n a = a.umod(p);\n } else {\n a = a.clone();\n }\n\n var x1 = new BN(1);\n var x2 = new BN(0);\n\n var delta = b.clone();\n\n while (a.cmpn(1) > 0 && b.cmpn(1) > 0) {\n for (var i = 0, im = 1; (a.words[0] & im) === 0 && i < 26; ++i, im <<= 1);\n if (i > 0) {\n a.iushrn(i);\n while (i-- > 0) {\n if (x1.isOdd()) {\n x1.iadd(delta);\n }\n\n x1.iushrn(1);\n }\n }\n\n for (var j = 0, jm = 1; (b.words[0] & jm) === 0 && j < 26; ++j, jm <<= 1);\n if (j > 0) {\n b.iushrn(j);\n while (j-- > 0) {\n if (x2.isOdd()) {\n x2.iadd(delta);\n }\n\n x2.iushrn(1);\n }\n }\n\n if (a.cmp(b) >= 0) {\n a.isub(b);\n x1.isub(x2);\n } else {\n b.isub(a);\n x2.isub(x1);\n }\n }\n\n var res;\n if (a.cmpn(1) === 0) {\n res = x1;\n } else {\n res = x2;\n }\n\n if (res.cmpn(0) < 0) {\n res.iadd(p);\n }\n\n return res;\n };\n\n BN.prototype.gcd = function gcd (num) {\n if (this.isZero()) return num.abs();\n if (num.isZero()) return this.abs();\n\n var a = this.clone();\n var b = num.clone();\n a.negative = 0;\n b.negative = 0;\n\n // Remove common factor of two\n for (var shift = 0; a.isEven() && b.isEven(); shift++) {\n a.iushrn(1);\n b.iushrn(1);\n }\n\n do {\n while (a.isEven()) {\n a.iushrn(1);\n }\n while (b.isEven()) {\n b.iushrn(1);\n }\n\n var r = a.cmp(b);\n if (r < 0) {\n // Swap `a` and `b` to make `a` always bigger than `b`\n var t = a;\n a = b;\n b = t;\n } else if (r === 0 || b.cmpn(1) === 0) {\n break;\n }\n\n a.isub(b);\n } while (true);\n\n return b.iushln(shift);\n };\n\n // Invert number in the field F(num)\n BN.prototype.invm = function invm (num) {\n return this.egcd(num).a.umod(num);\n };\n\n BN.prototype.isEven = function isEven () {\n return (this.words[0] & 1) === 0;\n };\n\n BN.prototype.isOdd = function isOdd () {\n return (this.words[0] & 1) === 1;\n };\n\n // And first word and num\n BN.prototype.andln = function andln (num) {\n return this.words[0] & num;\n };\n\n // Increment at the bit position in-line\n BN.prototype.bincn = function bincn (bit) {\n assert(typeof bit === 'number');\n var r = bit % 26;\n var s = (bit - r) / 26;\n var q = 1 << r;\n\n // Fast case: bit is much higher than all existing words\n if (this.length <= s) {\n this._expand(s + 1);\n this.words[s] |= q;\n return this;\n }\n\n // Add bit and propagate, if needed\n var carry = q;\n for (var i = s; carry !== 0 && i < this.length; i++) {\n var w = this.words[i] | 0;\n w += carry;\n carry = w >>> 26;\n w &= 0x3ffffff;\n this.words[i] = w;\n }\n if (carry !== 0) {\n this.words[i] = carry;\n this.length++;\n }\n return this;\n };\n\n BN.prototype.isZero = function isZero () {\n return this.length === 1 && this.words[0] === 0;\n };\n\n BN.prototype.cmpn = function cmpn (num) {\n var negative = num < 0;\n\n if (this.negative !== 0 && !negative) return -1;\n if (this.negative === 0 && negative) return 1;\n\n this.strip();\n\n var res;\n if (this.length > 1) {\n res = 1;\n } else {\n if (negative) {\n num = -num;\n }\n\n assert(num <= 0x3ffffff, 'Number is too big');\n\n var w = this.words[0] | 0;\n res = w === num ? 0 : w < num ? -1 : 1;\n }\n if (this.negative !== 0) return -res | 0;\n return res;\n };\n\n // Compare two numbers and return:\n // 1 - if `this` > `num`\n // 0 - if `this` == `num`\n // -1 - if `this` < `num`\n BN.prototype.cmp = function cmp (num) {\n if (this.negative !== 0 && num.negative === 0) return -1;\n if (this.negative === 0 && num.negative !== 0) return 1;\n\n var res = this.ucmp(num);\n if (this.negative !== 0) return -res | 0;\n return res;\n };\n\n // Unsigned comparison\n BN.prototype.ucmp = function ucmp (num) {\n // At this point both numbers have the same sign\n if (this.length > num.length) return 1;\n if (this.length < num.length) return -1;\n\n var res = 0;\n for (var i = this.length - 1; i >= 0; i--) {\n var a = this.words[i] | 0;\n var b = num.words[i] | 0;\n\n if (a === b) continue;\n if (a < b) {\n res = -1;\n } else if (a > b) {\n res = 1;\n }\n break;\n }\n return res;\n };\n\n BN.prototype.gtn = function gtn (num) {\n return this.cmpn(num) === 1;\n };\n\n BN.prototype.gt = function gt (num) {\n return this.cmp(num) === 1;\n };\n\n BN.prototype.gten = function gten (num) {\n return this.cmpn(num) >= 0;\n };\n\n BN.prototype.gte = function gte (num) {\n return this.cmp(num) >= 0;\n };\n\n BN.prototype.ltn = function ltn (num) {\n return this.cmpn(num) === -1;\n };\n\n BN.prototype.lt = function lt (num) {\n return this.cmp(num) === -1;\n };\n\n BN.prototype.lten = function lten (num) {\n return this.cmpn(num) <= 0;\n };\n\n BN.prototype.lte = function lte (num) {\n return this.cmp(num) <= 0;\n };\n\n BN.prototype.eqn = function eqn (num) {\n return this.cmpn(num) === 0;\n };\n\n BN.prototype.eq = function eq (num) {\n return this.cmp(num) === 0;\n };\n\n //\n // A reduce context, could be using montgomery or something better, depending\n // on the `m` itself.\n //\n BN.red = function red (num) {\n return new Red(num);\n };\n\n BN.prototype.toRed = function toRed (ctx) {\n assert(!this.red, 'Already a number in reduction context');\n assert(this.negative === 0, 'red works only with positives');\n return ctx.convertTo(this)._forceRed(ctx);\n };\n\n BN.prototype.fromRed = function fromRed () {\n assert(this.red, 'fromRed works only with numbers in reduction context');\n return this.red.convertFrom(this);\n };\n\n BN.prototype._forceRed = function _forceRed (ctx) {\n this.red = ctx;\n return this;\n };\n\n BN.prototype.forceRed = function forceRed (ctx) {\n assert(!this.red, 'Already a number in reduction context');\n return this._forceRed(ctx);\n };\n\n BN.prototype.redAdd = function redAdd (num) {\n assert(this.red, 'redAdd works only with red numbers');\n return this.red.add(this, num);\n };\n\n BN.prototype.redIAdd = function redIAdd (num) {\n assert(this.red, 'redIAdd works only with red numbers');\n return this.red.iadd(this, num);\n };\n\n BN.prototype.redSub = function redSub (num) {\n assert(this.red, 'redSub works only with red numbers');\n return this.red.sub(this, num);\n };\n\n BN.prototype.redISub = function redISub (num) {\n assert(this.red, 'redISub works only with red numbers');\n return this.red.isub(this, num);\n };\n\n BN.prototype.redShl = function redShl (num) {\n assert(this.red, 'redShl works only with red numbers');\n return this.red.shl(this, num);\n };\n\n BN.prototype.redMul = function redMul (num) {\n assert(this.red, 'redMul works only with red numbers');\n this.red._verify2(this, num);\n return this.red.mul(this, num);\n };\n\n BN.prototype.redIMul = function redIMul (num) {\n assert(this.red, 'redMul works only with red numbers');\n this.red._verify2(this, num);\n return this.red.imul(this, num);\n };\n\n BN.prototype.redSqr = function redSqr () {\n assert(this.red, 'redSqr works only with red numbers');\n this.red._verify1(this);\n return this.red.sqr(this);\n };\n\n BN.prototype.redISqr = function redISqr () {\n assert(this.red, 'redISqr works only with red numbers');\n this.red._verify1(this);\n return this.red.isqr(this);\n };\n\n // Square root over p\n BN.prototype.redSqrt = function redSqrt () {\n assert(this.red, 'redSqrt works only with red numbers');\n this.red._verify1(this);\n return this.red.sqrt(this);\n };\n\n BN.prototype.redInvm = function redInvm () {\n assert(this.red, 'redInvm works only with red numbers');\n this.red._verify1(this);\n return this.red.invm(this);\n };\n\n // Return negative clone of `this` % `red modulo`\n BN.prototype.redNeg = function redNeg () {\n assert(this.red, 'redNeg works only with red numbers');\n this.red._verify1(this);\n return this.red.neg(this);\n };\n\n BN.prototype.redPow = function redPow (num) {\n assert(this.red && !num.red, 'redPow(normalNum)');\n this.red._verify1(this);\n return this.red.pow(this, num);\n };\n\n // Prime numbers with efficient reduction\n var primes = {\n k256: null,\n p224: null,\n p192: null,\n p25519: null\n };\n\n // Pseudo-Mersenne prime\n function MPrime (name, p) {\n // P = 2 ^ N - K\n this.name = name;\n this.p = new BN(p, 16);\n this.n = this.p.bitLength();\n this.k = new BN(1).iushln(this.n).isub(this.p);\n\n this.tmp = this._tmp();\n }\n\n MPrime.prototype._tmp = function _tmp () {\n var tmp = new BN(null);\n tmp.words = new Array(Math.ceil(this.n / 13));\n return tmp;\n };\n\n MPrime.prototype.ireduce = function ireduce (num) {\n // Assumes that `num` is less than `P^2`\n // num = HI * (2 ^ N - K) + HI * K + LO = HI * K + LO (mod P)\n var r = num;\n var rlen;\n\n do {\n this.split(r, this.tmp);\n r = this.imulK(r);\n r = r.iadd(this.tmp);\n rlen = r.bitLength();\n } while (rlen > this.n);\n\n var cmp = rlen < this.n ? -1 : r.ucmp(this.p);\n if (cmp === 0) {\n r.words[0] = 0;\n r.length = 1;\n } else if (cmp > 0) {\n r.isub(this.p);\n } else {\n if (r.strip !== undefined) {\n // r is BN v4 instance\n r.strip();\n } else {\n // r is BN v5 instance\n r._strip();\n }\n }\n\n return r;\n };\n\n MPrime.prototype.split = function split (input, out) {\n input.iushrn(this.n, 0, out);\n };\n\n MPrime.prototype.imulK = function imulK (num) {\n return num.imul(this.k);\n };\n\n function K256 () {\n MPrime.call(\n this,\n 'k256',\n 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff fffffffe fffffc2f');\n }\n inherits(K256, MPrime);\n\n K256.prototype.split = function split (input, output) {\n // 256 = 9 * 26 + 22\n var mask = 0x3fffff;\n\n var outLen = Math.min(input.length, 9);\n for (var i = 0; i < outLen; i++) {\n output.words[i] = input.words[i];\n }\n output.length = outLen;\n\n if (input.length <= 9) {\n input.words[0] = 0;\n input.length = 1;\n return;\n }\n\n // Shift by 9 limbs\n var prev = input.words[9];\n output.words[output.length++] = prev & mask;\n\n for (i = 10; i < input.length; i++) {\n var next = input.words[i] | 0;\n input.words[i - 10] = ((next & mask) << 4) | (prev >>> 22);\n prev = next;\n }\n prev >>>= 22;\n input.words[i - 10] = prev;\n if (prev === 0 && input.length > 10) {\n input.length -= 10;\n } else {\n input.length -= 9;\n }\n };\n\n K256.prototype.imulK = function imulK (num) {\n // K = 0x1000003d1 = [ 0x40, 0x3d1 ]\n num.words[num.length] = 0;\n num.words[num.length + 1] = 0;\n num.length += 2;\n\n // bounded at: 0x40 * 0x3ffffff + 0x3d0 = 0x100000390\n var lo = 0;\n for (var i = 0; i < num.length; i++) {\n var w = num.words[i] | 0;\n lo += w * 0x3d1;\n num.words[i] = lo & 0x3ffffff;\n lo = w * 0x40 + ((lo / 0x4000000) | 0);\n }\n\n // Fast length reduction\n if (num.words[num.length - 1] === 0) {\n num.length--;\n if (num.words[num.length - 1] === 0) {\n num.length--;\n }\n }\n return num;\n };\n\n function P224 () {\n MPrime.call(\n this,\n 'p224',\n 'ffffffff ffffffff ffffffff ffffffff 00000000 00000000 00000001');\n }\n inherits(P224, MPrime);\n\n function P192 () {\n MPrime.call(\n this,\n 'p192',\n 'ffffffff ffffffff ffffffff fffffffe ffffffff ffffffff');\n }\n inherits(P192, MPrime);\n\n function P25519 () {\n // 2 ^ 255 - 19\n MPrime.call(\n this,\n '25519',\n '7fffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffed');\n }\n inherits(P25519, MPrime);\n\n P25519.prototype.imulK = function imulK (num) {\n // K = 0x13\n var carry = 0;\n for (var i = 0; i < num.length; i++) {\n var hi = (num.words[i] | 0) * 0x13 + carry;\n var lo = hi & 0x3ffffff;\n hi >>>= 26;\n\n num.words[i] = lo;\n carry = hi;\n }\n if (carry !== 0) {\n num.words[num.length++] = carry;\n }\n return num;\n };\n\n // Exported mostly for testing purposes, use plain name instead\n BN._prime = function prime (name) {\n // Cached version of prime\n if (primes[name]) return primes[name];\n\n var prime;\n if (name === 'k256') {\n prime = new K256();\n } else if (name === 'p224') {\n prime = new P224();\n } else if (name === 'p192') {\n prime = new P192();\n } else if (name === 'p25519') {\n prime = new P25519();\n } else {\n throw new Error('Unknown prime ' + name);\n }\n primes[name] = prime;\n\n return prime;\n };\n\n //\n // Base reduction engine\n //\n function Red (m) {\n if (typeof m === 'string') {\n var prime = BN._prime(m);\n this.m = prime.p;\n this.prime = prime;\n } else {\n assert(m.gtn(1), 'modulus must be greater than 1');\n this.m = m;\n this.prime = null;\n }\n }\n\n Red.prototype._verify1 = function _verify1 (a) {\n assert(a.negative === 0, 'red works only with positives');\n assert(a.red, 'red works only with red numbers');\n };\n\n Red.prototype._verify2 = function _verify2 (a, b) {\n assert((a.negative | b.negative) === 0, 'red works only with positives');\n assert(a.red && a.red === b.red,\n 'red works only with red numbers');\n };\n\n Red.prototype.imod = function imod (a) {\n if (this.prime) return this.prime.ireduce(a)._forceRed(this);\n return a.umod(this.m)._forceRed(this);\n };\n\n Red.prototype.neg = function neg (a) {\n if (a.isZero()) {\n return a.clone();\n }\n\n return this.m.sub(a)._forceRed(this);\n };\n\n Red.prototype.add = function add (a, b) {\n this._verify2(a, b);\n\n var res = a.add(b);\n if (res.cmp(this.m) >= 0) {\n res.isub(this.m);\n }\n return res._forceRed(this);\n };\n\n Red.prototype.iadd = function iadd (a, b) {\n this._verify2(a, b);\n\n var res = a.iadd(b);\n if (res.cmp(this.m) >= 0) {\n res.isub(this.m);\n }\n return res;\n };\n\n Red.prototype.sub = function sub (a, b) {\n this._verify2(a, b);\n\n var res = a.sub(b);\n if (res.cmpn(0) < 0) {\n res.iadd(this.m);\n }\n return res._forceRed(this);\n };\n\n Red.prototype.isub = function isub (a, b) {\n this._verify2(a, b);\n\n var res = a.isub(b);\n if (res.cmpn(0) < 0) {\n res.iadd(this.m);\n }\n return res;\n };\n\n Red.prototype.shl = function shl (a, num) {\n this._verify1(a);\n return this.imod(a.ushln(num));\n };\n\n Red.prototype.imul = function imul (a, b) {\n this._verify2(a, b);\n return this.imod(a.imul(b));\n };\n\n Red.prototype.mul = function mul (a, b) {\n this._verify2(a, b);\n return this.imod(a.mul(b));\n };\n\n Red.prototype.isqr = function isqr (a) {\n return this.imul(a, a.clone());\n };\n\n Red.prototype.sqr = function sqr (a) {\n return this.mul(a, a);\n };\n\n Red.prototype.sqrt = function sqrt (a) {\n if (a.isZero()) return a.clone();\n\n var mod3 = this.m.andln(3);\n assert(mod3 % 2 === 1);\n\n // Fast case\n if (mod3 === 3) {\n var pow = this.m.add(new BN(1)).iushrn(2);\n return this.pow(a, pow);\n }\n\n // Tonelli-Shanks algorithm (Totally unoptimized and slow)\n //\n // Find Q and S, that Q * 2 ^ S = (P - 1)\n var q = this.m.subn(1);\n var s = 0;\n while (!q.isZero() && q.andln(1) === 0) {\n s++;\n q.iushrn(1);\n }\n assert(!q.isZero());\n\n var one = new BN(1).toRed(this);\n var nOne = one.redNeg();\n\n // Find quadratic non-residue\n // NOTE: Max is such because of generalized Riemann hypothesis.\n var lpow = this.m.subn(1).iushrn(1);\n var z = this.m.bitLength();\n z = new BN(2 * z * z).toRed(this);\n\n while (this.pow(z, lpow).cmp(nOne) !== 0) {\n z.redIAdd(nOne);\n }\n\n var c = this.pow(z, q);\n var r = this.pow(a, q.addn(1).iushrn(1));\n var t = this.pow(a, q);\n var m = s;\n while (t.cmp(one) !== 0) {\n var tmp = t;\n for (var i = 0; tmp.cmp(one) !== 0; i++) {\n tmp = tmp.redSqr();\n }\n assert(i < m);\n var b = this.pow(c, new BN(1).iushln(m - i - 1));\n\n r = r.redMul(b);\n c = b.redSqr();\n t = t.redMul(c);\n m = i;\n }\n\n return r;\n };\n\n Red.prototype.invm = function invm (a) {\n var inv = a._invmp(this.m);\n if (inv.negative !== 0) {\n inv.negative = 0;\n return this.imod(inv).redNeg();\n } else {\n return this.imod(inv);\n }\n };\n\n Red.prototype.pow = function pow (a, num) {\n if (num.isZero()) return new BN(1).toRed(this);\n if (num.cmpn(1) === 0) return a.clone();\n\n var windowSize = 4;\n var wnd = new Array(1 << windowSize);\n wnd[0] = new BN(1).toRed(this);\n wnd[1] = a;\n for (var i = 2; i < wnd.length; i++) {\n wnd[i] = this.mul(wnd[i - 1], a);\n }\n\n var res = wnd[0];\n var current = 0;\n var currentLen = 0;\n var start = num.bitLength() % 26;\n if (start === 0) {\n start = 26;\n }\n\n for (i = num.length - 1; i >= 0; i--) {\n var word = num.words[i];\n for (var j = start - 1; j >= 0; j--) {\n var bit = (word >> j) & 1;\n if (res !== wnd[0]) {\n res = this.sqr(res);\n }\n\n if (bit === 0 && current === 0) {\n currentLen = 0;\n continue;\n }\n\n current <<= 1;\n current |= bit;\n currentLen++;\n if (currentLen !== windowSize && (i !== 0 || j !== 0)) continue;\n\n res = this.mul(res, wnd[current]);\n currentLen = 0;\n current = 0;\n }\n start = 26;\n }\n\n return res;\n };\n\n Red.prototype.convertTo = function convertTo (num) {\n var r = num.umod(this.m);\n\n return r === num ? r.clone() : r;\n };\n\n Red.prototype.convertFrom = function convertFrom (num) {\n var res = num.clone();\n res.red = null;\n return res;\n };\n\n //\n // Montgomery method engine\n //\n\n BN.mont = function mont (num) {\n return new Mont(num);\n };\n\n function Mont (m) {\n Red.call(this, m);\n\n this.shift = this.m.bitLength();\n if (this.shift % 26 !== 0) {\n this.shift += 26 - (this.shift % 26);\n }\n\n this.r = new BN(1).iushln(this.shift);\n this.r2 = this.imod(this.r.sqr());\n this.rinv = this.r._invmp(this.m);\n\n this.minv = this.rinv.mul(this.r).isubn(1).div(this.m);\n this.minv = this.minv.umod(this.r);\n this.minv = this.r.sub(this.minv);\n }\n inherits(Mont, Red);\n\n Mont.prototype.convertTo = function convertTo (num) {\n return this.imod(num.ushln(this.shift));\n };\n\n Mont.prototype.convertFrom = function convertFrom (num) {\n var r = this.imod(num.mul(this.rinv));\n r.red = null;\n return r;\n };\n\n Mont.prototype.imul = function imul (a, b) {\n if (a.isZero() || b.isZero()) {\n a.words[0] = 0;\n a.length = 1;\n return a;\n }\n\n var t = a.imul(b);\n var c = t.maskn(this.shift).mul(this.minv).imaskn(this.shift).mul(this.m);\n var u = t.isub(c).iushrn(this.shift);\n var res = u;\n\n if (u.cmp(this.m) >= 0) {\n res = u.isub(this.m);\n } else if (u.cmpn(0) < 0) {\n res = u.iadd(this.m);\n }\n\n return res._forceRed(this);\n };\n\n Mont.prototype.mul = function mul (a, b) {\n if (a.isZero() || b.isZero()) return new BN(0)._forceRed(this);\n\n var t = a.mul(b);\n var c = t.maskn(this.shift).mul(this.minv).imaskn(this.shift).mul(this.m);\n var u = t.isub(c).iushrn(this.shift);\n var res = u;\n if (u.cmp(this.m) >= 0) {\n res = u.isub(this.m);\n } else if (u.cmpn(0) < 0) {\n res = u.iadd(this.m);\n }\n\n return res._forceRed(this);\n };\n\n Mont.prototype.invm = function invm (a) {\n // (AR)^-1 * R^2 = (A^-1 * R^-1) * R^2 = A^-1 * R\n var res = this.imod(a._invmp(this.m).mul(this.r2));\n return res._forceRed(this);\n };\n})(typeof module === 'undefined' || module, this);\n","'use strict'\nvar inherits = require('inherits')\nvar MD5 = require('md5.js')\nvar RIPEMD160 = require('ripemd160')\nvar sha = require('sha.js')\nvar Base = require('cipher-base')\n\nfunction Hash (hash) {\n Base.call(this, 'digest')\n\n this._hash = hash\n}\n\ninherits(Hash, Base)\n\nHash.prototype._update = function (data) {\n this._hash.update(data)\n}\n\nHash.prototype._final = function () {\n return this._hash.digest()\n}\n\nmodule.exports = function createHash (alg) {\n alg = alg.toLowerCase()\n if (alg === 'md5') return new MD5()\n if (alg === 'rmd160' || alg === 'ripemd160') return new RIPEMD160()\n\n return new Hash(sha(alg))\n}\n","var MD5 = require('md5.js')\n\nmodule.exports = function (buffer) {\n return new MD5().update(buffer).digest()\n}\n","'use strict'\nvar inherits = require('inherits')\nvar Legacy = require('./legacy')\nvar Base = require('cipher-base')\nvar Buffer = require('safe-buffer').Buffer\nvar md5 = require('create-hash/md5')\nvar RIPEMD160 = require('ripemd160')\n\nvar sha = require('sha.js')\n\nvar ZEROS = Buffer.alloc(128)\n\nfunction Hmac (alg, key) {\n Base.call(this, 'digest')\n if (typeof key === 'string') {\n key = Buffer.from(key)\n }\n\n var blocksize = (alg === 'sha512' || alg === 'sha384') ? 128 : 64\n\n this._alg = alg\n this._key = key\n if (key.length > blocksize) {\n var hash = alg === 'rmd160' ? new RIPEMD160() : sha(alg)\n key = hash.update(key).digest()\n } else if (key.length < blocksize) {\n key = Buffer.concat([key, ZEROS], blocksize)\n }\n\n var ipad = this._ipad = Buffer.allocUnsafe(blocksize)\n var opad = this._opad = Buffer.allocUnsafe(blocksize)\n\n for (var i = 0; i < blocksize; i++) {\n ipad[i] = key[i] ^ 0x36\n opad[i] = key[i] ^ 0x5C\n }\n this._hash = alg === 'rmd160' ? new RIPEMD160() : sha(alg)\n this._hash.update(ipad)\n}\n\ninherits(Hmac, Base)\n\nHmac.prototype._update = function (data) {\n this._hash.update(data)\n}\n\nHmac.prototype._final = function () {\n var h = this._hash.digest()\n var hash = this._alg === 'rmd160' ? new RIPEMD160() : sha(this._alg)\n return hash.update(this._opad).update(h).digest()\n}\n\nmodule.exports = function createHmac (alg, key) {\n alg = alg.toLowerCase()\n if (alg === 'rmd160' || alg === 'ripemd160') {\n return new Hmac('rmd160', key)\n }\n if (alg === 'md5') {\n return new Legacy(md5, key)\n }\n return new Hmac(alg, key)\n}\n","'use strict'\nvar inherits = require('inherits')\nvar Buffer = require('safe-buffer').Buffer\n\nvar Base = require('cipher-base')\n\nvar ZEROS = Buffer.alloc(128)\nvar blocksize = 64\n\nfunction Hmac (alg, key) {\n Base.call(this, 'digest')\n if (typeof key === 'string') {\n key = Buffer.from(key)\n }\n\n this._alg = alg\n this._key = key\n\n if (key.length > blocksize) {\n key = alg(key)\n } else if (key.length < blocksize) {\n key = Buffer.concat([key, ZEROS], blocksize)\n }\n\n var ipad = this._ipad = Buffer.allocUnsafe(blocksize)\n var opad = this._opad = Buffer.allocUnsafe(blocksize)\n\n for (var i = 0; i < blocksize; i++) {\n ipad[i] = key[i] ^ 0x36\n opad[i] = key[i] ^ 0x5C\n }\n\n this._hash = [ipad]\n}\n\ninherits(Hmac, Base)\n\nHmac.prototype._update = function (data) {\n this._hash.push(data)\n}\n\nHmac.prototype._final = function () {\n var h = this._alg(Buffer.concat(this._hash))\n return this._alg(Buffer.concat([this._opad, h]))\n}\nmodule.exports = Hmac\n","'use strict'\n\nexports.randomBytes = exports.rng = exports.pseudoRandomBytes = exports.prng = require('randombytes')\nexports.createHash = exports.Hash = require('create-hash')\nexports.createHmac = exports.Hmac = require('create-hmac')\n\nvar algos = require('browserify-sign/algos')\nvar algoKeys = Object.keys(algos)\nvar hashes = ['sha1', 'sha224', 'sha256', 'sha384', 'sha512', 'md5', 'rmd160'].concat(algoKeys)\nexports.getHashes = function () {\n return hashes\n}\n\nvar p = require('pbkdf2')\nexports.pbkdf2 = p.pbkdf2\nexports.pbkdf2Sync = p.pbkdf2Sync\n\nvar aes = require('browserify-cipher')\n\nexports.Cipher = aes.Cipher\nexports.createCipher = aes.createCipher\nexports.Cipheriv = aes.Cipheriv\nexports.createCipheriv = aes.createCipheriv\nexports.Decipher = aes.Decipher\nexports.createDecipher = aes.createDecipher\nexports.Decipheriv = aes.Decipheriv\nexports.createDecipheriv = aes.createDecipheriv\nexports.getCiphers = aes.getCiphers\nexports.listCiphers = aes.listCiphers\n\nvar dh = require('diffie-hellman')\n\nexports.DiffieHellmanGroup = dh.DiffieHellmanGroup\nexports.createDiffieHellmanGroup = dh.createDiffieHellmanGroup\nexports.getDiffieHellman = dh.getDiffieHellman\nexports.createDiffieHellman = dh.createDiffieHellman\nexports.DiffieHellman = dh.DiffieHellman\n\nvar sign = require('browserify-sign')\n\nexports.createSign = sign.createSign\nexports.Sign = sign.Sign\nexports.createVerify = sign.createVerify\nexports.Verify = sign.Verify\n\nexports.createECDH = require('create-ecdh')\n\nvar publicEncrypt = require('public-encrypt')\n\nexports.publicEncrypt = publicEncrypt.publicEncrypt\nexports.privateEncrypt = publicEncrypt.privateEncrypt\nexports.publicDecrypt = publicEncrypt.publicDecrypt\nexports.privateDecrypt = publicEncrypt.privateDecrypt\n\n// the least I can do is make error messages for the rest of the node.js/crypto api.\n// ;[\n// 'createCredentials'\n// ].forEach(function (name) {\n// exports[name] = function () {\n// throw new Error([\n// 'sorry, ' + name + ' is not implemented yet',\n// 'we accept pull requests',\n// 'https://github.com/crypto-browserify/crypto-browserify'\n// ].join('\\n'))\n// }\n// })\n\nvar rf = require('randomfill')\n\nexports.randomFill = rf.randomFill\nexports.randomFillSync = rf.randomFillSync\n\nexports.createCredentials = function () {\n throw new Error([\n 'sorry, createCredentials is not implemented yet',\n 'we accept pull requests',\n 'https://github.com/crypto-browserify/crypto-browserify'\n ].join('\\n'))\n}\n\nexports.constants = {\n 'DH_CHECK_P_NOT_SAFE_PRIME': 2,\n 'DH_CHECK_P_NOT_PRIME': 1,\n 'DH_UNABLE_TO_CHECK_GENERATOR': 4,\n 'DH_NOT_SUITABLE_GENERATOR': 8,\n 'NPN_ENABLED': 1,\n 'ALPN_ENABLED': 1,\n 'RSA_PKCS1_PADDING': 1,\n 'RSA_SSLV23_PADDING': 2,\n 'RSA_NO_PADDING': 3,\n 'RSA_PKCS1_OAEP_PADDING': 4,\n 'RSA_X931_PADDING': 5,\n 'RSA_PKCS1_PSS_PADDING': 6,\n 'POINT_CONVERSION_COMPRESSED': 2,\n 'POINT_CONVERSION_UNCOMPRESSED': 4,\n 'POINT_CONVERSION_HYBRID': 6\n}\n","/*!\n * css-vars-ponyfill\n * v2.4.8\n * https://jhildenbiddle.github.io/css-vars-ponyfill/\n * (c) 2018-2022 John Hildenbiddle \n * MIT license\n */\nfunction _extends() {\n _extends = Object.assign ? Object.assign.bind() : function(target) {\n for (var i = 1; i < arguments.length; i++) {\n var source = arguments[i];\n for (var key in source) {\n if (Object.prototype.hasOwnProperty.call(source, key)) {\n target[key] = source[key];\n }\n }\n }\n return target;\n };\n return _extends.apply(this, arguments);\n}\n\n/*!\n * get-css-data\n * v2.1.0\n * https://github.com/jhildenbiddle/get-css-data\n * (c) 2018-2022 John Hildenbiddle \n * MIT license\n */ function getUrls(urls) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n var settings = {\n mimeType: options.mimeType || null,\n onBeforeSend: options.onBeforeSend || Function.prototype,\n onSuccess: options.onSuccess || Function.prototype,\n onError: options.onError || Function.prototype,\n onComplete: options.onComplete || Function.prototype\n };\n var urlArray = Array.isArray(urls) ? urls : [ urls ];\n var urlQueue = Array.apply(null, Array(urlArray.length)).map((function(x) {\n return null;\n }));\n function isValidCss(text) {\n var isString = typeof text === \"string\";\n var isHTML = isString && text.trim().charAt(0) === \"<\";\n return isString && !isHTML;\n }\n function onError(xhr, urlIndex) {\n settings.onError(xhr, urlArray[urlIndex], urlIndex);\n }\n function onSuccess(responseText, urlIndex) {\n var returnVal = settings.onSuccess(responseText, urlArray[urlIndex], urlIndex);\n responseText = returnVal === false ? \"\" : returnVal || responseText;\n urlQueue[urlIndex] = responseText;\n if (urlQueue.indexOf(null) === -1) {\n settings.onComplete(urlQueue);\n }\n }\n var parser = document.createElement(\"a\");\n urlArray.forEach((function(url, i) {\n parser.setAttribute(\"href\", url);\n parser.href = String(parser.href);\n var isIElte9 = Boolean(document.all && !window.atob);\n var isIElte9CORS = isIElte9 && parser.host.split(\":\")[0] !== location.host.split(\":\")[0];\n if (isIElte9CORS) {\n var isSameProtocol = parser.protocol === location.protocol;\n if (isSameProtocol) {\n var xdr = new XDomainRequest;\n xdr.open(\"GET\", url);\n xdr.timeout = 0;\n xdr.onprogress = Function.prototype;\n xdr.ontimeout = Function.prototype;\n xdr.onload = function() {\n var text = xdr.responseText;\n if (isValidCss(text)) {\n onSuccess(text, i);\n } else {\n onError(xdr, i);\n }\n };\n xdr.onerror = function(err) {\n onError(xdr, i);\n };\n setTimeout((function() {\n xdr.send();\n }), 0);\n } else {\n console.warn(\"Internet Explorer 9 Cross-Origin (CORS) requests must use the same protocol (\".concat(url, \")\"));\n onError(null, i);\n }\n } else {\n var xhr = new XMLHttpRequest;\n xhr.open(\"GET\", url);\n if (settings.mimeType && xhr.overrideMimeType) {\n xhr.overrideMimeType(settings.mimeType);\n }\n settings.onBeforeSend(xhr, url, i);\n xhr.onreadystatechange = function() {\n if (xhr.readyState === 4) {\n var text = xhr.responseText;\n if (xhr.status < 400 && isValidCss(text)) {\n onSuccess(text, i);\n } else if (xhr.status === 0 && isValidCss(text)) {\n onSuccess(text, i);\n } else {\n onError(xhr, i);\n }\n }\n };\n xhr.send();\n }\n }));\n}\n\n/**\n * Gets CSS data from