| function md5(bytes) { |
| const words = uint8ToUint32(bytes); |
| const md5Bytes = wordsToMd5(words, bytes.length * 8); |
| return uint32ToUint8(md5Bytes); |
| } |
| function uint32ToUint8(input) { |
| const bytes = new Uint8Array(input.length * 4); |
| for (let i = 0; i < input.length * 4; i++) { |
| bytes[i] = (input[i >> 2] >>> ((i % 4) * 8)) & 0xff; |
| } |
| return bytes; |
| } |
| function getOutputLength(inputLength8) { |
| return (((inputLength8 + 64) >>> 9) << 4) + 14 + 1; |
| } |
| function wordsToMd5(x, len) { |
| const xpad = new Uint32Array(getOutputLength(len)).fill(0); |
| xpad.set(x); |
| xpad[len >> 5] |= 0x80 << len % 32; |
| xpad[xpad.length - 1] = len; |
| x = xpad; |
| let a = 1732584193; |
| let b = -271733879; |
| let c = -1732584194; |
| let d = 271733878; |
| for (let i = 0; i < x.length; i += 16) { |
| const olda = a; |
| const oldb = b; |
| const oldc = c; |
| const oldd = d; |
| a = md5ff(a, b, c, d, x[i], 7, -680876936); |
| d = md5ff(d, a, b, c, x[i + 1], 12, -389564586); |
| c = md5ff(c, d, a, b, x[i + 2], 17, 606105819); |
| b = md5ff(b, c, d, a, x[i + 3], 22, -1044525330); |
| a = md5ff(a, b, c, d, x[i + 4], 7, -176418897); |
| d = md5ff(d, a, b, c, x[i + 5], 12, 1200080426); |
| c = md5ff(c, d, a, b, x[i + 6], 17, -1473231341); |
| b = md5ff(b, c, d, a, x[i + 7], 22, -45705983); |
| a = md5ff(a, b, c, d, x[i + 8], 7, 1770035416); |
| d = md5ff(d, a, b, c, x[i + 9], 12, -1958414417); |
| c = md5ff(c, d, a, b, x[i + 10], 17, -42063); |
| b = md5ff(b, c, d, a, x[i + 11], 22, -1990404162); |
| a = md5ff(a, b, c, d, x[i + 12], 7, 1804603682); |
| d = md5ff(d, a, b, c, x[i + 13], 12, -40341101); |
| c = md5ff(c, d, a, b, x[i + 14], 17, -1502002290); |
| b = md5ff(b, c, d, a, x[i + 15], 22, 1236535329); |
| a = md5gg(a, b, c, d, x[i + 1], 5, -165796510); |
| d = md5gg(d, a, b, c, x[i + 6], 9, -1069501632); |
| c = md5gg(c, d, a, b, x[i + 11], 14, 643717713); |
| b = md5gg(b, c, d, a, x[i], 20, -373897302); |
| a = md5gg(a, b, c, d, x[i + 5], 5, -701558691); |
| d = md5gg(d, a, b, c, x[i + 10], 9, 38016083); |
| c = md5gg(c, d, a, b, x[i + 15], 14, -660478335); |
| b = md5gg(b, c, d, a, x[i + 4], 20, -405537848); |
| a = md5gg(a, b, c, d, x[i + 9], 5, 568446438); |
| d = md5gg(d, a, b, c, x[i + 14], 9, -1019803690); |
| c = md5gg(c, d, a, b, x[i + 3], 14, -187363961); |
| b = md5gg(b, c, d, a, x[i + 8], 20, 1163531501); |
| a = md5gg(a, b, c, d, x[i + 13], 5, -1444681467); |
| d = md5gg(d, a, b, c, x[i + 2], 9, -51403784); |
| c = md5gg(c, d, a, b, x[i + 7], 14, 1735328473); |
| b = md5gg(b, c, d, a, x[i + 12], 20, -1926607734); |
| a = md5hh(a, b, c, d, x[i + 5], 4, -378558); |
| d = md5hh(d, a, b, c, x[i + 8], 11, -2022574463); |
| c = md5hh(c, d, a, b, x[i + 11], 16, 1839030562); |
| b = md5hh(b, c, d, a, x[i + 14], 23, -35309556); |
| a = md5hh(a, b, c, d, x[i + 1], 4, -1530992060); |
| d = md5hh(d, a, b, c, x[i + 4], 11, 1272893353); |
| c = md5hh(c, d, a, b, x[i + 7], 16, -155497632); |
| b = md5hh(b, c, d, a, x[i + 10], 23, -1094730640); |
| a = md5hh(a, b, c, d, x[i + 13], 4, 681279174); |
| d = md5hh(d, a, b, c, x[i], 11, -358537222); |
| c = md5hh(c, d, a, b, x[i + 3], 16, -722521979); |
| b = md5hh(b, c, d, a, x[i + 6], 23, 76029189); |
| a = md5hh(a, b, c, d, x[i + 9], 4, -640364487); |
| d = md5hh(d, a, b, c, x[i + 12], 11, -421815835); |
| c = md5hh(c, d, a, b, x[i + 15], 16, 530742520); |
| b = md5hh(b, c, d, a, x[i + 2], 23, -995338651); |
| a = md5ii(a, b, c, d, x[i], 6, -198630844); |
| d = md5ii(d, a, b, c, x[i + 7], 10, 1126891415); |
| c = md5ii(c, d, a, b, x[i + 14], 15, -1416354905); |
| b = md5ii(b, c, d, a, x[i + 5], 21, -57434055); |
| a = md5ii(a, b, c, d, x[i + 12], 6, 1700485571); |
| d = md5ii(d, a, b, c, x[i + 3], 10, -1894986606); |
| c = md5ii(c, d, a, b, x[i + 10], 15, -1051523); |
| b = md5ii(b, c, d, a, x[i + 1], 21, -2054922799); |
| a = md5ii(a, b, c, d, x[i + 8], 6, 1873313359); |
| d = md5ii(d, a, b, c, x[i + 15], 10, -30611744); |
| c = md5ii(c, d, a, b, x[i + 6], 15, -1560198380); |
| b = md5ii(b, c, d, a, x[i + 13], 21, 1309151649); |
| a = md5ii(a, b, c, d, x[i + 4], 6, -145523070); |
| d = md5ii(d, a, b, c, x[i + 11], 10, -1120210379); |
| c = md5ii(c, d, a, b, x[i + 2], 15, 718787259); |
| b = md5ii(b, c, d, a, x[i + 9], 21, -343485551); |
| a = safeAdd(a, olda); |
| b = safeAdd(b, oldb); |
| c = safeAdd(c, oldc); |
| d = safeAdd(d, oldd); |
| } |
| return Uint32Array.of(a, b, c, d); |
| } |
| function uint8ToUint32(input) { |
| if (input.length === 0) { |
| return new Uint32Array(); |
| } |
| const output = new Uint32Array(getOutputLength(input.length * 8)).fill(0); |
| for (let i = 0; i < input.length; i++) { |
| output[i >> 2] |= (input[i] & 0xff) << ((i % 4) * 8); |
| } |
| return output; |
| } |
| function safeAdd(x, y) { |
| const lsw = (x & 0xffff) + (y & 0xffff); |
| const msw = (x >> 16) + (y >> 16) + (lsw >> 16); |
| return (msw << 16) | (lsw & 0xffff); |
| } |
| function bitRotateLeft(num, cnt) { |
| return (num << cnt) | (num >>> (32 - cnt)); |
| } |
| function md5cmn(q, a, b, x, s, t) { |
| return safeAdd(bitRotateLeft(safeAdd(safeAdd(a, q), safeAdd(x, t)), s), b); |
| } |
| function md5ff(a, b, c, d, x, s, t) { |
| return md5cmn((b & c) | (~b & d), a, b, x, s, t); |
| } |
| function md5gg(a, b, c, d, x, s, t) { |
| return md5cmn((b & d) | (c & ~d), a, b, x, s, t); |
| } |
| function md5hh(a, b, c, d, x, s, t) { |
| return md5cmn(b ^ c ^ d, a, b, x, s, t); |
| } |
| function md5ii(a, b, c, d, x, s, t) { |
| return md5cmn(c ^ (b | ~d), a, b, x, s, t); |
| } |
| export default md5; |
