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223 lines
6.9 KiB
223 lines
6.9 KiB
"use strict"; |
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Object.defineProperty(exports, "__esModule", { |
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value: true |
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}); |
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exports.default = void 0; |
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/* |
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* Browser-compatible JavaScript MD5 |
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* |
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* Modification of JavaScript MD5 |
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* https://github.com/blueimp/JavaScript-MD5 |
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* |
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* Copyright 2011, Sebastian Tschan |
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* https://blueimp.net |
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* |
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* Licensed under the MIT license: |
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* https://opensource.org/licenses/MIT |
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* |
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* Based on |
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* A JavaScript implementation of the RSA Data Security, Inc. MD5 Message |
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* Digest Algorithm, as defined in RFC 1321. |
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* Version 2.2 Copyright (C) Paul Johnston 1999 - 2009 |
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* Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet |
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* Distributed under the BSD License |
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* See http://pajhome.org.uk/crypt/md5 for more info. |
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*/ |
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function md5(bytes) { |
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if (typeof bytes === 'string') { |
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const msg = unescape(encodeURIComponent(bytes)); // UTF8 escape |
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bytes = new Uint8Array(msg.length); |
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for (let i = 0; i < msg.length; ++i) { |
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bytes[i] = msg.charCodeAt(i); |
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} |
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} |
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return md5ToHexEncodedArray(wordsToMd5(bytesToWords(bytes), bytes.length * 8)); |
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} |
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/* |
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* Convert an array of little-endian words to an array of bytes |
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*/ |
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function md5ToHexEncodedArray(input) { |
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const output = []; |
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const length32 = input.length * 32; |
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const hexTab = '0123456789abcdef'; |
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for (let i = 0; i < length32; i += 8) { |
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const x = input[i >> 5] >>> i % 32 & 0xff; |
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const hex = parseInt(hexTab.charAt(x >>> 4 & 0x0f) + hexTab.charAt(x & 0x0f), 16); |
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output.push(hex); |
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} |
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return output; |
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} |
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/** |
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* Calculate output length with padding and bit length |
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*/ |
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function getOutputLength(inputLength8) { |
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return (inputLength8 + 64 >>> 9 << 4) + 14 + 1; |
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} |
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/* |
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* Calculate the MD5 of an array of little-endian words, and a bit length. |
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*/ |
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function wordsToMd5(x, len) { |
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/* append padding */ |
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x[len >> 5] |= 0x80 << len % 32; |
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x[getOutputLength(len) - 1] = len; |
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let a = 1732584193; |
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let b = -271733879; |
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let c = -1732584194; |
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let d = 271733878; |
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for (let i = 0; i < x.length; i += 16) { |
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const olda = a; |
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const oldb = b; |
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const oldc = c; |
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const oldd = d; |
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a = md5ff(a, b, c, d, x[i], 7, -680876936); |
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d = md5ff(d, a, b, c, x[i + 1], 12, -389564586); |
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c = md5ff(c, d, a, b, x[i + 2], 17, 606105819); |
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b = md5ff(b, c, d, a, x[i + 3], 22, -1044525330); |
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a = md5ff(a, b, c, d, x[i + 4], 7, -176418897); |
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d = md5ff(d, a, b, c, x[i + 5], 12, 1200080426); |
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c = md5ff(c, d, a, b, x[i + 6], 17, -1473231341); |
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b = md5ff(b, c, d, a, x[i + 7], 22, -45705983); |
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a = md5ff(a, b, c, d, x[i + 8], 7, 1770035416); |
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d = md5ff(d, a, b, c, x[i + 9], 12, -1958414417); |
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c = md5ff(c, d, a, b, x[i + 10], 17, -42063); |
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b = md5ff(b, c, d, a, x[i + 11], 22, -1990404162); |
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a = md5ff(a, b, c, d, x[i + 12], 7, 1804603682); |
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d = md5ff(d, a, b, c, x[i + 13], 12, -40341101); |
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c = md5ff(c, d, a, b, x[i + 14], 17, -1502002290); |
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b = md5ff(b, c, d, a, x[i + 15], 22, 1236535329); |
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a = md5gg(a, b, c, d, x[i + 1], 5, -165796510); |
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d = md5gg(d, a, b, c, x[i + 6], 9, -1069501632); |
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c = md5gg(c, d, a, b, x[i + 11], 14, 643717713); |
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b = md5gg(b, c, d, a, x[i], 20, -373897302); |
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a = md5gg(a, b, c, d, x[i + 5], 5, -701558691); |
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d = md5gg(d, a, b, c, x[i + 10], 9, 38016083); |
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c = md5gg(c, d, a, b, x[i + 15], 14, -660478335); |
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b = md5gg(b, c, d, a, x[i + 4], 20, -405537848); |
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a = md5gg(a, b, c, d, x[i + 9], 5, 568446438); |
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d = md5gg(d, a, b, c, x[i + 14], 9, -1019803690); |
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c = md5gg(c, d, a, b, x[i + 3], 14, -187363961); |
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b = md5gg(b, c, d, a, x[i + 8], 20, 1163531501); |
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a = md5gg(a, b, c, d, x[i + 13], 5, -1444681467); |
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d = md5gg(d, a, b, c, x[i + 2], 9, -51403784); |
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c = md5gg(c, d, a, b, x[i + 7], 14, 1735328473); |
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b = md5gg(b, c, d, a, x[i + 12], 20, -1926607734); |
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a = md5hh(a, b, c, d, x[i + 5], 4, -378558); |
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d = md5hh(d, a, b, c, x[i + 8], 11, -2022574463); |
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c = md5hh(c, d, a, b, x[i + 11], 16, 1839030562); |
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b = md5hh(b, c, d, a, x[i + 14], 23, -35309556); |
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a = md5hh(a, b, c, d, x[i + 1], 4, -1530992060); |
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d = md5hh(d, a, b, c, x[i + 4], 11, 1272893353); |
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c = md5hh(c, d, a, b, x[i + 7], 16, -155497632); |
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b = md5hh(b, c, d, a, x[i + 10], 23, -1094730640); |
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a = md5hh(a, b, c, d, x[i + 13], 4, 681279174); |
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d = md5hh(d, a, b, c, x[i], 11, -358537222); |
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c = md5hh(c, d, a, b, x[i + 3], 16, -722521979); |
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b = md5hh(b, c, d, a, x[i + 6], 23, 76029189); |
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a = md5hh(a, b, c, d, x[i + 9], 4, -640364487); |
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d = md5hh(d, a, b, c, x[i + 12], 11, -421815835); |
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c = md5hh(c, d, a, b, x[i + 15], 16, 530742520); |
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b = md5hh(b, c, d, a, x[i + 2], 23, -995338651); |
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a = md5ii(a, b, c, d, x[i], 6, -198630844); |
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d = md5ii(d, a, b, c, x[i + 7], 10, 1126891415); |
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c = md5ii(c, d, a, b, x[i + 14], 15, -1416354905); |
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b = md5ii(b, c, d, a, x[i + 5], 21, -57434055); |
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a = md5ii(a, b, c, d, x[i + 12], 6, 1700485571); |
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d = md5ii(d, a, b, c, x[i + 3], 10, -1894986606); |
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c = md5ii(c, d, a, b, x[i + 10], 15, -1051523); |
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b = md5ii(b, c, d, a, x[i + 1], 21, -2054922799); |
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a = md5ii(a, b, c, d, x[i + 8], 6, 1873313359); |
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d = md5ii(d, a, b, c, x[i + 15], 10, -30611744); |
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c = md5ii(c, d, a, b, x[i + 6], 15, -1560198380); |
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b = md5ii(b, c, d, a, x[i + 13], 21, 1309151649); |
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a = md5ii(a, b, c, d, x[i + 4], 6, -145523070); |
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d = md5ii(d, a, b, c, x[i + 11], 10, -1120210379); |
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c = md5ii(c, d, a, b, x[i + 2], 15, 718787259); |
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b = md5ii(b, c, d, a, x[i + 9], 21, -343485551); |
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a = safeAdd(a, olda); |
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b = safeAdd(b, oldb); |
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c = safeAdd(c, oldc); |
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d = safeAdd(d, oldd); |
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} |
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return [a, b, c, d]; |
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} |
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/* |
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* Convert an array bytes to an array of little-endian words |
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* Characters >255 have their high-byte silently ignored. |
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*/ |
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function bytesToWords(input) { |
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if (input.length === 0) { |
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return []; |
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} |
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const length8 = input.length * 8; |
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const output = new Uint32Array(getOutputLength(length8)); |
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for (let i = 0; i < length8; i += 8) { |
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output[i >> 5] |= (input[i / 8] & 0xff) << i % 32; |
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} |
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return output; |
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} |
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/* |
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* Add integers, wrapping at 2^32. This uses 16-bit operations internally |
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* to work around bugs in some JS interpreters. |
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*/ |
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function safeAdd(x, y) { |
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const lsw = (x & 0xffff) + (y & 0xffff); |
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const msw = (x >> 16) + (y >> 16) + (lsw >> 16); |
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return msw << 16 | lsw & 0xffff; |
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} |
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/* |
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* Bitwise rotate a 32-bit number to the left. |
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*/ |
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function bitRotateLeft(num, cnt) { |
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return num << cnt | num >>> 32 - cnt; |
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} |
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/* |
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* These functions implement the four basic operations the algorithm uses. |
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*/ |
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function md5cmn(q, a, b, x, s, t) { |
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return safeAdd(bitRotateLeft(safeAdd(safeAdd(a, q), safeAdd(x, t)), s), b); |
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} |
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function md5ff(a, b, c, d, x, s, t) { |
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return md5cmn(b & c | ~b & d, a, b, x, s, t); |
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} |
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function md5gg(a, b, c, d, x, s, t) { |
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return md5cmn(b & d | c & ~d, a, b, x, s, t); |
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} |
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function md5hh(a, b, c, d, x, s, t) { |
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return md5cmn(b ^ c ^ d, a, b, x, s, t); |
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} |
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function md5ii(a, b, c, d, x, s, t) { |
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return md5cmn(c ^ (b | ~d), a, b, x, s, t); |
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} |
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var _default = md5; |
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exports.default = _default; |