ts-md5

/* TypeScript Md5 ============== Based on work by * Joseph Myers: http://www.myersdaily.org/joseph/javascript/md5-text.html * André Cruz: https://github.com/satazor/SparkMD5 * Raymond Hill: https://github.com/gorhill/yamd5.js Effectively a TypeScrypt re-write of Raymond Hill JS Library The MIT License (MIT) Copyright (C) 2014 Raymond Hill Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE Version 2, December 2004 Copyright (C) 2015 André Cruz <amdfcruz@gmail.com> Everyone is permitted to copy and distribute verbatim or modified copies of this license document, and changing it is allowed as long as the name is changed. DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION 0. You just DO WHAT THE FUCK YOU WANT TO. */ export class Md5 { private static stateIdentity = new Int32Array([1732584193, -271733879, -1732584194, 271733878]); private static buffer32Identity = new Int32Array([0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]); private static hexChars = '0123456789abcdef'; private static hexOut = []; // Permanent instance is to use for one-call hashing private static onePassHasher = new Md5(); private _dataLength: number; private _bufferLength: number; private _state: Int32Array = new Int32Array(4); private _buffer: ArrayBuffer = new ArrayBuffer(68); private _buffer8: Uint8Array; private _buffer32: Uint32Array; // One time hashing functions static hashStr(str: string, raw: boolean = false) { return this.onePassHasher .start() .appendStr(str) .end(raw); }; static hashAsciiStr(str: string, raw: boolean = false) { return this.onePassHasher .start() .appendAsciiStr(str) .end(raw); }; constructor() { this._buffer8 = new Uint8Array(this._buffer, 0, 68); this._buffer32 = new Uint32Array(this._buffer, 0, 17); this.start(); } start() { this._dataLength = 0; this._bufferLength = 0; this._state.set(Md5.stateIdentity); return this; } // Char to code point to to array conversion: // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/charCodeAt // #Example.3A_Fixing_charCodeAt_to_handle_non-Basic-Multilingual-Plane_characters_if_their_presence_earlier_in_the_string_is_unknown appendStr(str: string) { var buf8 = this._buffer8, buf32 = this._buffer32, bufLen = this._bufferLength, code, i; for (i = 0; i < str.length; i += 1) { code = str.charCodeAt(i); if (code < 128) { buf8[bufLen++] = code; } else if (code < 0x800) { buf8[bufLen++] = (code >>> 6) + 0xC0; buf8[bufLen++] = code & 0x3F | 0x80; } else if (code < 0xD800 || code > 0xDBFF) { buf8[bufLen++] = (code >>> 12) + 0xE0; buf8[bufLen++] = (code >>> 6 & 0x3F) | 0x80; buf8[bufLen++] = (code & 0x3F) | 0x80; } else { code = ((code - 0xD800) * 0x400) + (str.charCodeAt(++i) - 0xDC00) + 0x10000; if (code > 0x10FFFF) { throw 'Unicode standard supports code points up to U+10FFFF'; } buf8[bufLen++] = (code >>> 18) + 0xF0; buf8[bufLen++] = (code >>> 12 & 0x3F) | 0x80; buf8[bufLen++] = (code >>> 6 & 0x3F) | 0x80; buf8[bufLen++] = (code & 0x3F) | 0x80; } if (bufLen >= 64) { this._dataLength += 64; Md5._md5cycle(this._state, buf32); bufLen -= 64; buf32[0] = buf32[16]; } } this._bufferLength = bufLen; return this; } appendAsciiStr(str: string) { var buf8 = this._buffer8, buf32 = this._buffer32, bufLen = this._bufferLength, i, j = 0; for (; ;) { i = Math.min(str.length - j, 64 - bufLen); while (i--) { buf8[bufLen++] = str.charCodeAt(j++); } if (bufLen < 64) { break; } this._dataLength += 64; Md5._md5cycle(this._state, buf32); bufLen = 0; } this._bufferLength = bufLen; return this; } appendByteArray(input: Uint8Array) { var buf8 = this._buffer8, buf32 = this._buffer32, bufLen = this._bufferLength, i, j = 0; for (; ;) { i = Math.min(input.length - j, 64 - bufLen); while (i--) { buf8[bufLen++] = input[j++]; } if (bufLen < 64) { break; } this._dataLength += 64; Md5._md5cycle(this._state, buf32); bufLen = 0; } this._bufferLength = bufLen; return this; } getState() { var self = this, s = self._state; return { buffer: String.fromCharCode.apply(null, self._buffer8), buflen: self._bufferLength, length: self._dataLength, state: [s[0], s[1], s[2], s[3]] }; } setState(state: any) { var buf = state.buffer, x = state.state, s = this._state, i; this._dataLength = state.length; this._bufferLength = state.buflen; s[0] = x[0]; s[1] = x[1]; s[2] = x[2]; s[3] = x[3]; for (i = 0; i < buf.length; i += 1) { this._buffer8[i] = buf.charCodeAt(i); } } end(raw: boolean = false) { var bufLen = this._bufferLength, buf8 = this._buffer8, buf32 = this._buffer32, i = (bufLen >> 2) + 1, dataBitsLen; this._dataLength += bufLen; buf8[bufLen] = 0x80; buf8[bufLen + 1] = buf8[bufLen + 2] = buf8[bufLen + 3] = 0; buf32.set(Md5.buffer32Identity.subarray(i), i); if (bufLen > 55) { Md5._md5cycle(this._state, buf32); buf32.set(Md5.buffer32Identity); } // Do the final computation based on the tail and length // Beware that the final length may not fit in 32 bits so we take care of that dataBitsLen = this._dataLength * 8; if (dataBitsLen <= 0xFFFFFFFF) { buf32[14] = dataBitsLen; } else { var matches = dataBitsLen.toString(16).match(/(.*?)(.{0,8})$/), lo = parseInt(matches[2], 16), hi = parseInt(matches[1], 16) || 0; buf32[14] = lo; buf32[15] = hi; } Md5._md5cycle(this._state, buf32); return raw ? this._state : Md5._hex(this._state); } private static _hex(x: any):string { var hc = Md5.hexChars, ho = Md5.hexOut, n, offset, j, i; for (i = 0; i < 4; i += 1) { offset = i * 8; n = x[i]; for (j = 0; j < 8; j += 2) { ho[offset + 1 + j] = hc.charAt(n & 0x0F); n >>>= 4; ho[offset + 0 + j] = hc.charAt(n & 0x0F); n >>>= 4; } } return ho.join(''); } private static _md5cycle(x, k) { var a = x[0], b = x[1], c = x[2], d = x[3]; // ff() a += (b & c | ~b & d) + k[0] - 680876936 | 0; a = (a << 7 | a >>> 25) + b | 0; d += (a & b | ~a & c) + k[1] - 389564586 | 0; d = (d << 12 | d >>> 20) + a | 0; c += (d & a | ~d & b) + k[2] + 606105819 | 0; c = (c << 17 | c >>> 15) + d | 0; b += (c & d | ~c & a) + k[3] - 1044525330 | 0; b = (b << 22 | b >>> 10) + c | 0; a += (b & c | ~b & d) + k[4] - 176418897 | 0; a = (a << 7 | a >>> 25) + b | 0; d += (a & b | ~a & c) + k[5] + 1200080426 | 0; d = (d << 12 | d >>> 20) + a | 0; c += (d & a | ~d & b) + k[6] - 1473231341 | 0; c = (c << 17 | c >>> 15) + d | 0; b += (c & d | ~c & a) + k[7] - 45705983 | 0; b = (b << 22 | b >>> 10) + c | 0; a += (b & c | ~b & d) + k[8] + 1770035416 | 0; a = (a << 7 | a >>> 25) + b | 0; d += (a & b | ~a & c) + k[9] - 1958414417 | 0; d = (d << 12 | d >>> 20) + a | 0; c += (d & a | ~d & b) + k[10] - 42063 | 0; c = (c << 17 | c >>> 15) + d | 0; b += (c & d | ~c & a) + k[11] - 1990404162 | 0; b = (b << 22 | b >>> 10) + c | 0; a += (b & c | ~b & d) + k[12] + 1804603682 | 0; a = (a << 7 | a >>> 25) + b | 0; d += (a & b | ~a & c) + k[13] - 40341101 | 0; d = (d << 12 | d >>> 20) + a | 0; c += (d & a | ~d & b) + k[14] - 1502002290 | 0; c = (c << 17 | c >>> 15) + d | 0; b += (c & d | ~c & a) + k[15] + 1236535329 | 0; b = (b << 22 | b >>> 10) + c | 0; // gg() a += (b & d | c & ~d) + k[1] - 165796510 | 0; a = (a << 5 | a >>> 27) + b | 0; d += (a & c | b & ~c) + k[6] - 1069501632 | 0; d = (d << 9 | d >>> 23) + a | 0; c += (d & b | a & ~b) + k[11] + 643717713 | 0; c = (c << 14 | c >>> 18) + d | 0; b += (c & a | d & ~a) + k[0] - 373897302 | 0; b = (b << 20 | b >>> 12) + c | 0; a += (b & d | c & ~d) + k[5] - 701558691 | 0; a = (a << 5 | a >>> 27) + b | 0; d += (a & c | b & ~c) + k[10] + 38016083 | 0; d = (d << 9 | d >>> 23) + a | 0; c += (d & b | a & ~b) + k[15] - 660478335 | 0; c = (c << 14 | c >>> 18) + d | 0; b += (c & a | d & ~a) + k[4] - 405537848 | 0; b = (b << 20 | b >>> 12) + c | 0; a += (b & d | c & ~d) + k[9] + 568446438 | 0; a = (a << 5 | a >>> 27) + b | 0; d += (a & c | b & ~c) + k[14] - 1019803690 | 0; d = (d << 9 | d >>> 23) + a | 0; c += (d & b | a & ~b) + k[3] - 187363961 | 0; c = (c << 14 | c >>> 18) + d | 0; b += (c & a | d & ~a) + k[8] + 1163531501 | 0; b = (b << 20 | b >>> 12) + c | 0; a += (b & d | c & ~d) + k[13] - 1444681467 | 0; a = (a << 5 | a >>> 27) + b | 0; d += (a & c | b & ~c) + k[2] - 51403784 | 0; d = (d << 9 | d >>> 23) + a | 0; c += (d & b | a & ~b) + k[7] + 1735328473 | 0; c = (c << 14 | c >>> 18) + d | 0; b += (c & a | d & ~a) + k[12] - 1926607734 | 0; b = (b << 20 | b >>> 12) + c | 0; // hh() a += (b ^ c ^ d) + k[5] - 378558 | 0; a = (a << 4 | a >>> 28) + b | 0; d += (a ^ b ^ c) + k[8] - 2022574463 | 0; d = (d << 11 | d >>> 21) + a | 0; c += (d ^ a ^ b) + k[11] + 1839030562 | 0; c = (c << 16 | c >>> 16) + d | 0; b += (c ^ d ^ a) + k[14] - 35309556 | 0; b = (b << 23 | b >>> 9) + c | 0; a += (b ^ c ^ d) + k[1] - 1530992060 | 0; a = (a << 4 | a >>> 28) + b | 0; d += (a ^ b ^ c) + k[4] + 1272893353 | 0; d = (d << 11 | d >>> 21) + a | 0; c += (d ^ a ^ b) + k[7] - 155497632 | 0; c = (c << 16 | c >>> 16) + d | 0; b += (c ^ d ^ a) + k[10] - 1094730640 | 0; b = (b << 23 | b >>> 9) + c | 0; a += (b ^ c ^ d) + k[13] + 681279174 | 0; a = (a << 4 | a >>> 28) + b | 0; d += (a ^ b ^ c) + k[0] - 358537222 | 0; d = (d << 11 | d >>> 21) + a | 0; c += (d ^ a ^ b) + k[3] - 722521979 | 0; c = (c << 16 | c >>> 16) + d | 0; b += (c ^ d ^ a) + k[6] + 76029189 | 0; b = (b << 23 | b >>> 9) + c | 0; a += (b ^ c ^ d) + k[9] - 640364487 | 0; a = (a << 4 | a >>> 28) + b | 0; d += (a ^ b ^ c) + k[12] - 421815835 | 0; d = (d << 11 | d >>> 21) + a | 0; c += (d ^ a ^ b) + k[15] + 530742520 | 0; c = (c << 16 | c >>> 16) + d | 0; b += (c ^ d ^ a) + k[2] - 995338651 | 0; b = (b << 23 | b >>> 9) + c | 0; // ii() a += (c ^ (b | ~d)) + k[0] - 198630844 | 0; a = (a << 6 | a >>> 26) + b | 0; d += (b ^ (a | ~c)) + k[7] + 1126891415 | 0; d = (d << 10 | d >>> 22) + a | 0; c += (a ^ (d | ~b)) + k[14] - 1416354905 | 0; c = (c << 15 | c >>> 17) + d | 0; b += (d ^ (c | ~a)) + k[5] - 57434055 | 0; b = (b << 21 | b >>> 11) + c | 0; a += (c ^ (b | ~d)) + k[12] + 1700485571 | 0; a = (a << 6 | a >>> 26) + b | 0; d += (b ^ (a | ~c)) + k[3] - 1894986606 | 0; d = (d << 10 | d >>> 22) + a | 0; c += (a ^ (d | ~b)) + k[10] - 1051523 | 0; c = (c << 15 | c >>> 17) + d | 0; b += (d ^ (c | ~a)) + k[1] - 2054922799 | 0; b = (b << 21 | b >>> 11) + c | 0; a += (c ^ (b | ~d)) + k[8] + 1873313359 | 0; a = (a << 6 | a >>> 26) + b | 0; d += (b ^ (a | ~c)) + k[15] - 30611744 | 0; d = (d << 10 | d >>> 22) + a | 0; c += (a ^ (d | ~b)) + k[6] - 1560198380 | 0; c = (c << 15 | c >>> 17) + d | 0; b += (d ^ (c | ~a)) + k[13] + 1309151649 | 0; b = (b << 21 | b >>> 11) + c | 0; a += (c ^ (b | ~d)) + k[4] - 145523070 | 0; a = (a << 6 | a >>> 26) + b | 0; d += (b ^ (a | ~c)) + k[11] - 1120210379 | 0; d = (d << 10 | d >>> 22) + a | 0; c += (a ^ (d | ~b)) + k[2] + 718787259 | 0; c = (c << 15 | c >>> 17) + d | 0; b += (d ^ (c | ~a)) + k[9] - 343485551 | 0; b = (b << 21 | b >>> 11) + c | 0; x[0] = a + x[0] | 0; x[1] = b + x[1] | 0; x[2] = c + x[2] | 0; x[3] = d + x[3] | 0; } } if (Md5.hashStr('hello') !== '5d41402abc4b2a76b9719d911017c592') { console.error('Md5 self test failed.'); }