| 16 | * Calculate the MD5 of an array of little-endian words, and a bit length |
| 17 | */ |
| 18 | function core_md5 (x: any, len: number) |
| 19 | { |
| 20 | /* append padding */ |
| 21 | x[len >> 5] |= 0x80 << ((len) % 32); |
| 22 | x[(((len + 64) >>> 9) << 4) + 14] = len; |
| 23 | |
| 24 | |
| 25 | let a = 1732584193; |
| 26 | let b = -271733879; |
| 27 | let c = -1732584194; |
| 28 | let d = 271733878; |
| 29 | |
| 30 | |
| 31 | for (let i = 0; i < x.length; i += 16) |
| 32 | { |
| 33 | const olda = a; |
| 34 | const oldb = b; |
| 35 | const oldc = c; |
| 36 | const oldd = d; |
| 37 | |
| 38 | |
| 39 | a = md5_ff(a, b, c, d, x[i + 0], 7, -680876936); |
| 40 | d = md5_ff(d, a, b, c, x[i + 1], 12, -389564586); |
| 41 | c = md5_ff(c, d, a, b, x[i + 2], 17, 606105819); |
| 42 | b = md5_ff(b, c, d, a, x[i + 3], 22, -1044525330); |
| 43 | a = md5_ff(a, b, c, d, x[i + 4], 7, -176418897); |
| 44 | d = md5_ff(d, a, b, c, x[i + 5], 12, 1200080426); |
| 45 | c = md5_ff(c, d, a, b, x[i + 6], 17, -1473231341); |
| 46 | b = md5_ff(b, c, d, a, x[i + 7], 22, -45705983); |
| 47 | a = md5_ff(a, b, c, d, x[i + 8], 7, 1770035416); |
| 48 | d = md5_ff(d, a, b, c, x[i + 9], 12, -1958414417); |
| 49 | c = md5_ff(c, d, a, b, x[i + 10], 17, -42063); |
| 50 | b = md5_ff(b, c, d, a, x[i + 11], 22, -1990404162); |
| 51 | a = md5_ff(a, b, c, d, x[i + 12], 7, 1804603682); |
| 52 | d = md5_ff(d, a, b, c, x[i + 13], 12, -40341101); |
| 53 | c = md5_ff(c, d, a, b, x[i + 14], 17, -1502002290); |
| 54 | b = md5_ff(b, c, d, a, x[i + 15], 22, 1236535329); |
| 55 | |
| 56 | |
| 57 | a = md5_gg(a, b, c, d, x[i + 1], 5, -165796510); |
| 58 | d = md5_gg(d, a, b, c, x[i + 6], 9, -1069501632); |
| 59 | c = md5_gg(c, d, a, b, x[i + 11], 14, 643717713); |
| 60 | b = md5_gg(b, c, d, a, x[i + 0], 20, -373897302); |
| 61 | a = md5_gg(a, b, c, d, x[i + 5], 5, -701558691); |
| 62 | d = md5_gg(d, a, b, c, x[i + 10], 9, 38016083); |
| 63 | c = md5_gg(c, d, a, b, x[i + 15], 14, -660478335); |
| 64 | b = md5_gg(b, c, d, a, x[i + 4], 20, -405537848); |
| 65 | a = md5_gg(a, b, c, d, x[i + 9], 5, 568446438); |
| 66 | d = md5_gg(d, a, b, c, x[i + 14], 9, -1019803690); |
| 67 | c = md5_gg(c, d, a, b, x[i + 3], 14, -187363961); |
| 68 | b = md5_gg(b, c, d, a, x[i + 8], 20, 1163531501); |
| 69 | a = md5_gg(a, b, c, d, x[i + 13], 5, -1444681467); |
| 70 | d = md5_gg(d, a, b, c, x[i + 2], 9, -51403784); |
| 71 | c = md5_gg(c, d, a, b, x[i + 7], 14, 1735328473); |
| 72 | b = md5_gg(b, c, d, a, x[i + 12], 20, -1926607734); |
| 73 | |
| 74 | |
| 75 | a = md5_hh(a, b, c, d, x[i + 5], 4, -378558); |