572 lines
18 KiB
JavaScript
572 lines
18 KiB
JavaScript
/**
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* [js-md4]{@link https://github.com/emn178/js-md4}
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*
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* @namespace md4
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* @version 0.3.2
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* @author Yi-Cyuan Chen [emn178@gmail.com]
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* @copyright Yi-Cyuan Chen 2015-2027
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* @license MIT
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*/
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/*jslint bitwise: true */
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(function () {
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'use strict';
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var root = typeof window === 'object' ? window : {};
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var NODE_JS = !root.JS_MD4_NO_NODE_JS && typeof process === 'object' && process.versions && process.versions.node;
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if (NODE_JS) {
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root = global;
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}
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var COMMON_JS = !root.JS_MD4_NO_COMMON_JS && typeof module === 'object' && module.exports;
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var AMD = typeof define === 'function' && define.amd;
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var ARRAY_BUFFER = !root.JS_MD4_NO_ARRAY_BUFFER && typeof ArrayBuffer !== 'undefined';
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var HEX_CHARS = '0123456789abcdef'.split('');
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var EXTRA = [128, 32768, 8388608, -2147483648];
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var SHIFT = [0, 8, 16, 24];
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var OUTPUT_TYPES = ['hex', 'array', 'digest', 'buffer', 'arrayBuffer'];
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var blocks = [], buffer8;
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if (ARRAY_BUFFER) {
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var buffer = new ArrayBuffer(68);
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buffer8 = new Uint8Array(buffer);
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blocks = new Uint32Array(buffer);
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}
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/**
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* @method hex
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* @memberof md4
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* @description Output hash as hex string
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* @param {String|Array|Uint8Array|ArrayBuffer} message message to hash
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* @returns {String} Hex string
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* @example
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* md4.hex('The quick brown fox jumps over the lazy dog');
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* // equal to
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* md4('The quick brown fox jumps over the lazy dog');
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*/
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/**
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* @method digest
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* @memberof md4
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* @description Output hash as bytes array
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* @param {String|Array|Uint8Array|ArrayBuffer} message message to hash
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* @returns {Array} Bytes array
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* @example
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* md4.digest('The quick brown fox jumps over the lazy dog');
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*/
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/**
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* @method array
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* @memberof md4
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* @description Output hash as bytes array
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* @param {String|Array|Uint8Array|ArrayBuffer} message message to hash
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* @returns {Array} Bytes array
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* @example
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* md4.array('The quick brown fox jumps over the lazy dog');
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*/
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/**
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* @method buffer
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* @memberof md4
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* @description Output hash as ArrayBuffer
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* @param {String|Array|Uint8Array|ArrayBuffer} message message to hash
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* @returns {ArrayBuffer} ArrayBuffer
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* @example
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* md4.buffer('The quick brown fox jumps over the lazy dog');
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*/
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var createOutputMethod = function (outputType) {
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return function(message) {
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return new Md4(true).update(message)[outputType]();
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}
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};
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/**
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* @method create
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* @memberof md4
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* @description Create Md4 object
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* @returns {Md4} MD4 object.
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* @example
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* var hash = md4.create();
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*/
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/**
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* @method update
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* @memberof md4
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* @description Create and update Md4 object
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* @param {String|Array|Uint8Array|ArrayBuffer} message message to hash
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* @returns {Md4} MD4 object.
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* @example
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* var hash = md4.update('The quick brown fox jumps over the lazy dog');
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* // equal to
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* var hash = md4.create();
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* hash.update('The quick brown fox jumps over the lazy dog');
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*/
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var createMethod = function () {
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var method = createOutputMethod('hex');
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method.create = function () {
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return new Md4();
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};
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method.update = function (message) {
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return method.create().update(message);
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};
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for (var i = 0; i < OUTPUT_TYPES.length; ++i) {
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var type = OUTPUT_TYPES[i];
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method[type] = createOutputMethod(type);
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}
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return method;
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};
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var nodeWrap = function (method) {
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var crypto = require('crypto');
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var Buffer = require('buffer').Buffer;
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var nodeMethod = function (message) {
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if (typeof message === 'string') {
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return crypto.createHash('md4').update(message, 'utf8').digest('hex');
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} else if (ARRAY_BUFFER && message instanceof ArrayBuffer) {
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message = new Uint8Array(message);
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} else if (message.length === undefined) {
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return method(message);
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}
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return crypto.createHash('md4').update(Buffer.from(message)).digest('hex');
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};
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return nodeMethod;
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};
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/**
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* Md4 class
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* @class Md4
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* @description This is internal class.
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* @see {@link md4.create}
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*/
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function Md4(sharedMemory) {
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if (sharedMemory) {
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blocks[0] = blocks[16] = blocks[1] = blocks[2] = blocks[3] =
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blocks[4] = blocks[5] = blocks[6] = blocks[7] =
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blocks[8] = blocks[9] = blocks[10] = blocks[11] =
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blocks[12] = blocks[13] = blocks[14] = blocks[15] = 0;
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this.blocks = blocks;
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this.buffer8 = buffer8;
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} else {
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if (ARRAY_BUFFER) {
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var buffer = new ArrayBuffer(68);
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this.buffer8 = new Uint8Array(buffer);
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this.blocks = new Uint32Array(buffer);
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} else {
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this.blocks = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0];
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}
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}
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this.h0 = this.h1 = this.h2 = this.h3 = this.start = this.bytes = 0;
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this.finalized = this.hashed = false;
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this.first = true;
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}
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/**
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* @method update
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* @memberof Md4
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* @instance
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* @description Update hash
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* @param {String|Array|Uint8Array|ArrayBuffer} message message to hash
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* @returns {Md4} MD4 object.
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* @see {@link md4.update}
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*/
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Md4.prototype.update = function (message) {
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if (this.finalized) {
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return;
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}
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var notString = typeof message !== 'string';
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if (notString && ARRAY_BUFFER && message instanceof ArrayBuffer) {
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message = new Uint8Array(message);
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}
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var code, index = 0, i, length = message.length || 0, blocks = this.blocks;
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var buffer8 = this.buffer8;
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while (index < length) {
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if (this.hashed) {
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this.hashed = false;
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blocks[0] = blocks[16];
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blocks[16] = blocks[1] = blocks[2] = blocks[3] =
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blocks[4] = blocks[5] = blocks[6] = blocks[7] =
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blocks[8] = blocks[9] = blocks[10] = blocks[11] =
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blocks[12] = blocks[13] = blocks[14] = blocks[15] = 0;
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}
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if (notString) {
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if (ARRAY_BUFFER) {
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for (i = this.start; index < length && i < 64; ++index) {
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buffer8[i++] = message[index];
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}
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} else {
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for (i = this.start; index < length && i < 64; ++index) {
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blocks[i >> 2] |= message[index] << SHIFT[i++ & 3];
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}
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}
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} else {
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if (ARRAY_BUFFER) {
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for (i = this.start; index < length && i < 64; ++index) {
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code = message.charCodeAt(index);
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if (code < 0x80) {
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buffer8[i++] = code;
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} else if (code < 0x800) {
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buffer8[i++] = 0xc0 | (code >> 6);
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buffer8[i++] = 0x80 | (code & 0x3f);
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} else if (code < 0xd800 || code >= 0xe000) {
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buffer8[i++] = 0xe0 | (code >> 12);
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buffer8[i++] = 0x80 | ((code >> 6) & 0x3f);
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buffer8[i++] = 0x80 | (code & 0x3f);
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} else {
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code = 0x10000 + (((code & 0x3ff) << 10) | (message.charCodeAt(++index) & 0x3ff));
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buffer8[i++] = 0xf0 | (code >> 18);
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buffer8[i++] = 0x80 | ((code >> 12) & 0x3f);
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buffer8[i++] = 0x80 | ((code >> 6) & 0x3f);
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buffer8[i++] = 0x80 | (code & 0x3f);
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}
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}
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} else {
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for (i = this.start; index < length && i < 64; ++index) {
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code = message.charCodeAt(index);
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if (code < 0x80) {
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blocks[i >> 2] |= code << SHIFT[i++ & 3];
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} else if (code < 0x800) {
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blocks[i >> 2] |= (0xc0 | (code >> 6)) << SHIFT[i++ & 3];
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blocks[i >> 2] |= (0x80 | (code & 0x3f)) << SHIFT[i++ & 3];
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} else if (code < 0xd800 || code >= 0xe000) {
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blocks[i >> 2] |= (0xe0 | (code >> 12)) << SHIFT[i++ & 3];
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blocks[i >> 2] |= (0x80 | ((code >> 6) & 0x3f)) << SHIFT[i++ & 3];
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blocks[i >> 2] |= (0x80 | (code & 0x3f)) << SHIFT[i++ & 3];
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} else {
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code = 0x10000 + (((code & 0x3ff) << 10) | (message.charCodeAt(++index) & 0x3ff));
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blocks[i >> 2] |= (0xf0 | (code >> 18)) << SHIFT[i++ & 3];
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blocks[i >> 2] |= (0x80 | ((code >> 12) & 0x3f)) << SHIFT[i++ & 3];
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blocks[i >> 2] |= (0x80 | ((code >> 6) & 0x3f)) << SHIFT[i++ & 3];
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blocks[i >> 2] |= (0x80 | (code & 0x3f)) << SHIFT[i++ & 3];
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}
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}
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}
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}
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this.lastByteIndex = i;
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this.bytes += i - this.start;
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if (i >= 64) {
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this.start = i - 64;
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this.hash();
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this.hashed = true;
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} else {
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this.start = i;
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}
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}
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return this;
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};
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Md4.prototype.finalize = function () {
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if (this.finalized) {
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return;
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}
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this.finalized = true;
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var blocks = this.blocks, i = this.lastByteIndex;
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blocks[i >> 2] |= EXTRA[i & 3];
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if (i >= 56) {
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if (!this.hashed) {
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this.hash();
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}
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blocks[0] = blocks[16];
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blocks[16] = blocks[1] = blocks[2] = blocks[3] =
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blocks[4] = blocks[5] = blocks[6] = blocks[7] =
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blocks[8] = blocks[9] = blocks[10] = blocks[11] =
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blocks[12] = blocks[13] = blocks[14] = blocks[15] = 0;
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}
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blocks[14] = this.bytes << 3;
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this.hash();
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};
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Md4.prototype.hash = function () {
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var a, b, c, d, ab, bc, cd, da, blocks = this.blocks;
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if (this.first) {
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a = blocks[0] - 1;
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a = (a << 3) | (a >>> 29);
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d = ((a & 0xefcdab89) | (~a & 0x98badcfe)) + blocks[1] + 271733878;
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d = (d << 7) | (d >>> 25);
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c = ((d & a) | (~d & 0xefcdab89)) + blocks[2] - 1732584194;
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c = (c << 11) | (c >>> 21);
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b = ((c & d) | (~c & a)) + blocks[3] - 271733879;
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b = (b << 19) | (b >>> 13);
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} else {
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a = this.h0;
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b = this.h1;
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c = this.h2;
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d = this.h3;
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a += ((b & c) | (~b & d)) + blocks[0];
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a = (a << 3) | (a >>> 29);
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d += ((a & b) | (~a & c)) + blocks[1];
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d = (d << 7) | (d >>> 25);
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c += ((d & a) | (~d & b)) + blocks[2];
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c = (c << 11) | (c >>> 21);
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b += ((c & d) | (~c & a)) + blocks[3];
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b = (b << 19) | (b >>> 13);
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}
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a += ((b & c) | (~b & d)) + blocks[4];
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a = (a << 3) | (a >>> 29);
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d += ((a & b) | (~a & c)) + blocks[5];
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d = (d << 7) | (d >>> 25);
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c += ((d & a) | (~d & b)) + blocks[6];
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c = (c << 11) | (c >>> 21);
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b += ((c & d) | (~c & a)) + blocks[7];
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b = (b << 19) | (b >>> 13);
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a += ((b & c) | (~b & d)) + blocks[8];
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a = (a << 3) | (a >>> 29);
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d += ((a & b) | (~a & c)) + blocks[9];
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d = (d << 7) | (d >>> 25);
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c += ((d & a) | (~d & b)) + blocks[10];
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c = (c << 11) | (c >>> 21);
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b += ((c & d) | (~c & a)) + blocks[11];
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b = (b << 19) | (b >>> 13);
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a += ((b & c) | (~b & d)) + blocks[12];
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a = (a << 3) | (a >>> 29);
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d += ((a & b) | (~a & c)) + blocks[13];
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d = (d << 7) | (d >>> 25);
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c += ((d & a) | (~d & b)) + blocks[14];
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c = (c << 11) | (c >>> 21);
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b += ((c & d) | (~c & a)) + blocks[15];
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b = (b << 19) | (b >>> 13);
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bc = b & c;
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a += (bc | (b & d) | (c & d)) + blocks[0] + 1518500249;
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a = (a << 3) | (a >>> 29);
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ab = a & b;
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d += (ab | (a & c) | bc) + blocks[4] + 1518500249;
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d = (d << 5) | (d >>> 27);
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da = d & a;
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c += (da | (d & b) | ab) + blocks[8] + 1518500249;
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c = (c << 9) | (c >>> 23);
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cd = c & d;
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b += (cd | (c & a) | da) + blocks[12] + 1518500249;
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b = (b << 13) | (b >>> 19);
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bc = b & c;
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a += (bc | (b & d) | cd) + blocks[1] + 1518500249;
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a = (a << 3) | (a >>> 29);
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ab = a & b;
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d += (ab | (a & c) | bc) + blocks[5] + 1518500249;
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d = (d << 5) | (d >>> 27);
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da = d & a;
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c += (da | (d & b) | ab) + blocks[9] + 1518500249;
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c = (c << 9) | (c >>> 23);
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cd = c & d;
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b += (cd | (c & a) | da) + blocks[13] + 1518500249;
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b = (b << 13) | (b >>> 19);
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bc = b & c;
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a += (bc | (b & d) | cd) + blocks[2] + 1518500249;
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a = (a << 3) | (a >>> 29);
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ab = a & b;
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d += (ab | (a & c) | bc) + blocks[6] + 1518500249;
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d = (d << 5) | (d >>> 27);
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da = d & a;
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c += (da | (d & b) | ab) + blocks[10] + 1518500249;
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c = (c << 9) | (c >>> 23);
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cd = c & d;
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b += (cd | (c & a) | da) + blocks[14] + 1518500249;
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b = (b << 13) | (b >>> 19);
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bc = b & c;
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a += (bc | (b & d) | cd) + blocks[3] + 1518500249;
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a = (a << 3) | (a >>> 29);
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ab = a & b;
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d += (ab | (a & c) | bc) + blocks[7] + 1518500249;
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d = (d << 5) | (d >>> 27);
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da = d & a;
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c += (da | (d & b) | ab) + blocks[11] + 1518500249;
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c = (c << 9) | (c >>> 23);
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b += ((c & d) | (c & a) | da) + blocks[15] + 1518500249;
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b = (b << 13) | (b >>> 19);
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bc = b ^ c;
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a += (bc ^ d) + blocks[0] + 1859775393;
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a = (a << 3) | (a >>> 29);
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d += (bc ^ a) + blocks[8] + 1859775393;
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d = (d << 9) | (d >>> 23);
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da = d ^ a;
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c += (da ^ b) + blocks[4] + 1859775393;
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c = (c << 11) | (c >>> 21);
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b += (da ^ c) + blocks[12] + 1859775393;
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b = (b << 15) | (b >>> 17);
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bc = b ^ c;
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a += (bc ^ d) + blocks[2] + 1859775393;
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a = (a << 3) | (a >>> 29);
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d += (bc ^ a) + blocks[10] + 1859775393;
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d = (d << 9) | (d >>> 23);
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da = d ^ a;
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c += (da ^ b) + blocks[6] + 1859775393;
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c = (c << 11) | (c >>> 21);
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b += (da ^ c) + blocks[14] + 1859775393;
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b = (b << 15) | (b >>> 17);
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bc = b ^ c;
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a += (bc ^ d) + blocks[1] + 1859775393;
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a = (a << 3) | (a >>> 29);
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d += (bc ^ a) + blocks[9] + 1859775393;
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d = (d << 9) | (d >>> 23);
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da = d ^ a;
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c += (da ^ b) + blocks[5] + 1859775393;
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c = (c << 11) | (c >>> 21);
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b += (da ^ c) + blocks[13] + 1859775393;
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b = (b << 15) | (b >>> 17);
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bc = b ^ c;
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a += (bc ^ d) + blocks[3] + 1859775393;
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a = (a << 3) | (a >>> 29);
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d += (bc ^ a) + blocks[11] + 1859775393;
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d = (d << 9) | (d >>> 23);
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da = d ^ a;
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c += (da ^ b) + blocks[7] + 1859775393;
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c = (c << 11) | (c >>> 21);
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b += (da ^ c) + blocks[15] + 1859775393;
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b = (b << 15) | (b >>> 17);
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if (this.first) {
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this.h0 = a + 1732584193 << 0;
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this.h1 = b - 271733879 << 0;
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this.h2 = c - 1732584194 << 0;
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this.h3 = d + 271733878 << 0;
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this.first = false;
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} else {
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this.h0 = this.h0 + a << 0;
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this.h1 = this.h1 + b << 0;
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this.h2 = this.h2 + c << 0;
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this.h3 = this.h3 + d << 0;
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}
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};
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/**
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* @method hex
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* @memberof Md4
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* @instance
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* @description Output hash as hex string
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* @returns {String} Hex string
|
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* @see {@link md4.hex}
|
||
* @example
|
||
* hash.hex();
|
||
*/
|
||
Md4.prototype.hex = function () {
|
||
this.finalize();
|
||
|
||
var h0 = this.h0, h1 = this.h1, h2 = this.h2, h3 = this.h3;
|
||
|
||
return HEX_CHARS[(h0 >> 4) & 0x0F] + HEX_CHARS[h0 & 0x0F] +
|
||
HEX_CHARS[(h0 >> 12) & 0x0F] + HEX_CHARS[(h0 >> 8) & 0x0F] +
|
||
HEX_CHARS[(h0 >> 20) & 0x0F] + HEX_CHARS[(h0 >> 16) & 0x0F] +
|
||
HEX_CHARS[(h0 >> 28) & 0x0F] + HEX_CHARS[(h0 >> 24) & 0x0F] +
|
||
HEX_CHARS[(h1 >> 4) & 0x0F] + HEX_CHARS[h1 & 0x0F] +
|
||
HEX_CHARS[(h1 >> 12) & 0x0F] + HEX_CHARS[(h1 >> 8) & 0x0F] +
|
||
HEX_CHARS[(h1 >> 20) & 0x0F] + HEX_CHARS[(h1 >> 16) & 0x0F] +
|
||
HEX_CHARS[(h1 >> 28) & 0x0F] + HEX_CHARS[(h1 >> 24) & 0x0F] +
|
||
HEX_CHARS[(h2 >> 4) & 0x0F] + HEX_CHARS[h2 & 0x0F] +
|
||
HEX_CHARS[(h2 >> 12) & 0x0F] + HEX_CHARS[(h2 >> 8) & 0x0F] +
|
||
HEX_CHARS[(h2 >> 20) & 0x0F] + HEX_CHARS[(h2 >> 16) & 0x0F] +
|
||
HEX_CHARS[(h2 >> 28) & 0x0F] + HEX_CHARS[(h2 >> 24) & 0x0F] +
|
||
HEX_CHARS[(h3 >> 4) & 0x0F] + HEX_CHARS[h3 & 0x0F] +
|
||
HEX_CHARS[(h3 >> 12) & 0x0F] + HEX_CHARS[(h3 >> 8) & 0x0F] +
|
||
HEX_CHARS[(h3 >> 20) & 0x0F] + HEX_CHARS[(h3 >> 16) & 0x0F] +
|
||
HEX_CHARS[(h3 >> 28) & 0x0F] + HEX_CHARS[(h3 >> 24) & 0x0F];
|
||
};
|
||
|
||
/**
|
||
* @method toString
|
||
* @memberof Md4
|
||
* @instance
|
||
* @description Output hash as hex string
|
||
* @returns {String} Hex string
|
||
* @see {@link md4.hex}
|
||
* @example
|
||
* hash.toString();
|
||
*/
|
||
Md4.prototype.toString = Md4.prototype.hex;
|
||
|
||
/**
|
||
* @method digest
|
||
* @memberof Md4
|
||
* @instance
|
||
* @description Output hash as bytes array
|
||
* @returns {Array} Bytes array
|
||
* @see {@link md4.digest}
|
||
* @example
|
||
* hash.digest();
|
||
*/
|
||
Md4.prototype.digest = function() {
|
||
this.finalize();
|
||
|
||
var h0 = this.h0, h1 = this.h1, h2 = this.h2, h3 = this.h3;
|
||
return [
|
||
h0 & 0xFF, (h0 >> 8) & 0xFF, (h0 >> 16) & 0xFF, (h0 >> 24) & 0xFF,
|
||
h1 & 0xFF, (h1 >> 8) & 0xFF, (h1 >> 16) & 0xFF, (h1 >> 24) & 0xFF,
|
||
h2 & 0xFF, (h2 >> 8) & 0xFF, (h2 >> 16) & 0xFF, (h2 >> 24) & 0xFF,
|
||
h3 & 0xFF, (h3 >> 8) & 0xFF, (h3 >> 16) & 0xFF, (h3 >> 24) & 0xFF
|
||
];
|
||
};
|
||
|
||
/**
|
||
* @method array
|
||
* @memberof Md4
|
||
* @instance
|
||
* @description Output hash as bytes array
|
||
* @returns {Array} Bytes array
|
||
* @see {@link md4.array}
|
||
* @example
|
||
* hash.array();
|
||
*/
|
||
Md4.prototype.array = Md4.prototype.digest;
|
||
|
||
/**
|
||
* @method arrayBuffer
|
||
* @memberof Md4
|
||
* @instance
|
||
* @description Output hash as ArrayBuffer
|
||
* @returns {ArrayBuffer} ArrayBuffer
|
||
* @see {@link md4.arrayBuffer}
|
||
* @example
|
||
* hash.arrayBuffer();
|
||
*/
|
||
Md4.prototype.arrayBuffer = function() {
|
||
this.finalize();
|
||
|
||
var buffer = new ArrayBuffer(16);
|
||
var blocks = new Uint32Array(buffer);
|
||
blocks[0] = this.h0;
|
||
blocks[1] = this.h1;
|
||
blocks[2] = this.h2;
|
||
blocks[3] = this.h3;
|
||
return buffer;
|
||
};
|
||
|
||
/**
|
||
* @method buffer
|
||
* @deprecated This maybe confuse with Buffer in node.js. Please use arrayBuffer instead.
|
||
* @memberof Md4
|
||
* @instance
|
||
* @description Output hash as ArrayBuffer
|
||
* @returns {ArrayBuffer} ArrayBuffer
|
||
* @see {@link md4.buffer}
|
||
* @example
|
||
* hash.buffer();
|
||
*/
|
||
Md4.prototype.buffer = Md4.prototype.arrayBuffer;
|
||
|
||
var exports = createMethod();
|
||
|
||
if (COMMON_JS) {
|
||
module.exports = exports;
|
||
} else {
|
||
/**
|
||
* @method md4
|
||
* @description MD4 hash function, export to global in browsers.
|
||
* @param {String|Array|Uint8Array|ArrayBuffer} message message to hash
|
||
* @returns {String} md4 hashes
|
||
* @example
|
||
* md4(''); // 31d6cfe0d16ae931b73c59d7e0c089c0
|
||
* md4('The quick brown fox jumps over the lazy dog'); // 1bee69a46ba811185c194762abaeae90
|
||
* md4('The quick brown fox jumps over the lazy dog.'); // 2812c6c7136898c51f6f6739ad08750e
|
||
*
|
||
* // It also supports UTF-8 encoding
|
||
* md4('中文'); // 223088bf7bd45a16436b15360c5fc5a0
|
||
*
|
||
* // It also supports byte `Array`, `Uint8Array`, `ArrayBuffer`
|
||
* md4([]); // 31d6cfe0d16ae931b73c59d7e0c089c0
|
||
* md4(new Uint8Array([])); // 31d6cfe0d16ae931b73c59d7e0c089c0
|
||
*/
|
||
root.md4 = exports;
|
||
if (AMD) {
|
||
define(function () {
|
||
return exports;
|
||
});
|
||
}
|
||
}
|
||
})();
|