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128 lines
4.8 KiB
128 lines
4.8 KiB
"use strict"; |
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function safe_add(x, y) { |
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var lsw = (x & 65535) + (y & 65535); |
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var msw = (x >> 16) + (y >> 16) + (lsw >> 16); |
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return msw << 16 | lsw & 65535; |
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} |
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function rol(num, cnt) { |
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return num << cnt | num >>> 32 - cnt; |
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} |
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function cmn(q, a, b, x, s, t) { |
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return safe_add(rol(safe_add(safe_add(a, q), safe_add(x, t)), s), b); |
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} |
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function ff(a, b, c, d, x, s, t) { |
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return cmn(b & c | ~b & d, a, b, x, s, t); |
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} |
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function gg(a, b, c, d, x, s, t) { |
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return cmn(b & d | c & ~d, a, b, x, s, t); |
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} |
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function hh(a, b, c, d, x, s, t) { |
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return cmn(b ^ c ^ d, a, b, x, s, t); |
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} |
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function ii(a, b, c, d, x, s, t) { |
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return cmn(c ^ (b | ~d), a, b, x, s, t); |
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} |
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function coreMD5(x) { |
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var a = 1732584193; |
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var b = -271733879; |
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var c = -1732584194; |
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var d = 271733878; |
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for (var i = 0; i < x.length; i += 16) { |
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var olda = a; |
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var oldb = b; |
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var oldc = c; |
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var oldd = d; |
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a = ff(a, b, c, d, x[i + 0], 7, -680876936); |
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d = ff(d, a, b, c, x[i + 1], 12, -389564586); |
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c = ff(c, d, a, b, x[i + 2], 17, 606105819); |
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b = ff(b, c, d, a, x[i + 3], 22, -1044525330); |
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a = ff(a, b, c, d, x[i + 4], 7, -176418897); |
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d = ff(d, a, b, c, x[i + 5], 12, 1200080426); |
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c = ff(c, d, a, b, x[i + 6], 17, -1473231341); |
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b = ff(b, c, d, a, x[i + 7], 22, -45705983); |
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a = ff(a, b, c, d, x[i + 8], 7, 1770035416); |
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d = ff(d, a, b, c, x[i + 9], 12, -1958414417); |
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c = ff(c, d, a, b, x[i + 10], 17, -42063); |
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b = ff(b, c, d, a, x[i + 11], 22, -1990404162); |
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a = ff(a, b, c, d, x[i + 12], 7, 1804603682); |
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d = ff(d, a, b, c, x[i + 13], 12, -40341101); |
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c = ff(c, d, a, b, x[i + 14], 17, -1502002290); |
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b = ff(b, c, d, a, x[i + 15], 22, 1236535329); |
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a = gg(a, b, c, d, x[i + 1], 5, -165796510); |
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d = gg(d, a, b, c, x[i + 6], 9, -1069501632); |
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c = gg(c, d, a, b, x[i + 11], 14, 643717713); |
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b = gg(b, c, d, a, x[i + 0], 20, -373897302); |
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a = gg(a, b, c, d, x[i + 5], 5, -701558691); |
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d = gg(d, a, b, c, x[i + 10], 9, 38016083); |
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c = gg(c, d, a, b, x[i + 15], 14, -660478335); |
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b = gg(b, c, d, a, x[i + 4], 20, -405537848); |
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a = gg(a, b, c, d, x[i + 9], 5, 568446438); |
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d = gg(d, a, b, c, x[i + 14], 9, -1019803690); |
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c = gg(c, d, a, b, x[i + 3], 14, -187363961); |
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b = gg(b, c, d, a, x[i + 8], 20, 1163531501); |
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a = gg(a, b, c, d, x[i + 13], 5, -1444681467); |
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d = gg(d, a, b, c, x[i + 2], 9, -51403784); |
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c = gg(c, d, a, b, x[i + 7], 14, 1735328473); |
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b = gg(b, c, d, a, x[i + 12], 20, -1926607734); |
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a = hh(a, b, c, d, x[i + 5], 4, -378558); |
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d = hh(d, a, b, c, x[i + 8], 11, -2022574463); |
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c = hh(c, d, a, b, x[i + 11], 16, 1839030562); |
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b = hh(b, c, d, a, x[i + 14], 23, -35309556); |
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a = hh(a, b, c, d, x[i + 1], 4, -1530992060); |
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d = hh(d, a, b, c, x[i + 4], 11, 1272893353); |
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c = hh(c, d, a, b, x[i + 7], 16, -155497632); |
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b = hh(b, c, d, a, x[i + 10], 23, -1094730640); |
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a = hh(a, b, c, d, x[i + 13], 4, 681279174); |
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d = hh(d, a, b, c, x[i + 0], 11, -358537222); |
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c = hh(c, d, a, b, x[i + 3], 16, -722521979); |
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b = hh(b, c, d, a, x[i + 6], 23, 76029189); |
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a = hh(a, b, c, d, x[i + 9], 4, -640364487); |
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d = hh(d, a, b, c, x[i + 12], 11, -421815835); |
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c = hh(c, d, a, b, x[i + 15], 16, 530742520); |
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b = hh(b, c, d, a, x[i + 2], 23, -995338651); |
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a = ii(a, b, c, d, x[i + 0], 6, -198630844); |
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d = ii(d, a, b, c, x[i + 7], 10, 1126891415); |
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c = ii(c, d, a, b, x[i + 14], 15, -1416354905); |
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b = ii(b, c, d, a, x[i + 5], 21, -57434055); |
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a = ii(a, b, c, d, x[i + 12], 6, 1700485571); |
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d = ii(d, a, b, c, x[i + 3], 10, -1894986606); |
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c = ii(c, d, a, b, x[i + 10], 15, -1051523); |
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b = ii(b, c, d, a, x[i + 1], 21, -2054922799); |
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a = ii(a, b, c, d, x[i + 8], 6, 1873313359); |
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d = ii(d, a, b, c, x[i + 15], 10, -30611744); |
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c = ii(c, d, a, b, x[i + 6], 15, -1560198380); |
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b = ii(b, c, d, a, x[i + 13], 21, 1309151649); |
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a = ii(a, b, c, d, x[i + 4], 6, -145523070); |
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d = ii(d, a, b, c, x[i + 11], 10, -1120210379); |
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c = ii(c, d, a, b, x[i + 2], 15, 718787259); |
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b = ii(b, c, d, a, x[i + 9], 21, -343485551); |
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a = safe_add(a, olda); |
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b = safe_add(b, oldb); |
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c = safe_add(c, oldc); |
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d = safe_add(d, oldd); |
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} |
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return [a, b, c, d]; |
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} |
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function binl2hex(binarray) { |
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var hex_tab = "0123456789abcdef"; |
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var str = ""; |
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for (var i = 0; i < binarray.length * 4; i++) { |
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str += hex_tab.charAt(binarray[i >> 2] >> i % 4 * 8 + 4 & 15) + hex_tab.charAt(binarray[i >> 2] >> i % 4 * 8 & 15); |
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} |
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return str; |
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} |
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function str2binl(str) { |
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var nblk = (str.length + 8 >> 6) + 1; |
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var blks = new Array(nblk * 16); |
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for (var i = 0; i < nblk * 16; i++) |
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blks[i] = 0; |
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for (var i = 0; i < str.length; i++) |
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blks[i >> 2] |= (str.charCodeAt(i) & 255) << i % 4 * 8; |
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blks[i >> 2] |= 128 << i % 4 * 8; |
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blks[nblk * 16 - 2] = str.length * 8; |
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return blks; |
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} |
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function hexMD5(str) { |
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return binl2hex(coreMD5(str2binl(str))); |
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} |
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exports.hexMD5 = hexMD5;
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