[1121] | 1 | /** |
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[1335] | 2 | * @author MD5 (Message-Digest Algorithm) |
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| 3 | * * http://www.webtoolkit.info/ |
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| 4 | * |
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[1121] | 5 | */ |
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| 6 | var MD5 = function (string) { |
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| 7 | |
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| 8 | function RotateLeft(lValue, iShiftBits) { |
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| 9 | return (lValue<<iShiftBits) | (lValue>>>(32-iShiftBits)); |
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| 10 | } |
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| 11 | |
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| 12 | function AddUnsigned(lX,lY) { |
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| 13 | var lX4,lY4,lX8,lY8,lResult; |
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| 14 | lX8 = (lX & 0x80000000); |
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| 15 | lY8 = (lY & 0x80000000); |
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| 16 | lX4 = (lX & 0x40000000); |
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| 17 | lY4 = (lY & 0x40000000); |
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| 18 | lResult = (lX & 0x3FFFFFFF)+(lY & 0x3FFFFFFF); |
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| 19 | if (lX4 & lY4) { |
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| 20 | return (lResult ^ 0x80000000 ^ lX8 ^ lY8); |
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| 21 | } |
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| 22 | if (lX4 | lY4) { |
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| 23 | if (lResult & 0x40000000) { |
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| 24 | return (lResult ^ 0xC0000000 ^ lX8 ^ lY8); |
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| 25 | } else { |
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| 26 | return (lResult ^ 0x40000000 ^ lX8 ^ lY8); |
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| 27 | } |
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| 28 | } else { |
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| 29 | return (lResult ^ lX8 ^ lY8); |
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| 30 | } |
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| 31 | } |
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| 32 | |
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| 33 | function F(x,y,z) { return (x & y) | ((~x) & z); } |
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| 34 | function G(x,y,z) { return (x & z) | (y & (~z)); } |
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| 35 | function H(x,y,z) { return (x ^ y ^ z); } |
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| 36 | function I(x,y,z) { return (y ^ (x | (~z))); } |
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| 37 | |
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| 38 | function FF(a,b,c,d,x,s,ac) { |
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| 39 | a = AddUnsigned(a, AddUnsigned(AddUnsigned(F(b, c, d), x), ac)); |
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| 40 | return AddUnsigned(RotateLeft(a, s), b); |
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| 41 | }; |
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| 42 | |
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| 43 | function GG(a,b,c,d,x,s,ac) { |
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| 44 | a = AddUnsigned(a, AddUnsigned(AddUnsigned(G(b, c, d), x), ac)); |
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| 45 | return AddUnsigned(RotateLeft(a, s), b); |
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| 46 | }; |
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| 47 | |
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| 48 | function HH(a,b,c,d,x,s,ac) { |
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| 49 | a = AddUnsigned(a, AddUnsigned(AddUnsigned(H(b, c, d), x), ac)); |
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| 50 | return AddUnsigned(RotateLeft(a, s), b); |
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| 51 | }; |
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| 52 | |
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| 53 | function II(a,b,c,d,x,s,ac) { |
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| 54 | a = AddUnsigned(a, AddUnsigned(AddUnsigned(I(b, c, d), x), ac)); |
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| 55 | return AddUnsigned(RotateLeft(a, s), b); |
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| 56 | }; |
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| 57 | |
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| 58 | function ConvertToWordArray(string) { |
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| 59 | var lWordCount; |
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| 60 | var lMessageLength = string.length; |
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| 61 | var lNumberOfWords_temp1=lMessageLength + 8; |
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| 62 | var lNumberOfWords_temp2=(lNumberOfWords_temp1-(lNumberOfWords_temp1 % 64))/64; |
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| 63 | var lNumberOfWords = (lNumberOfWords_temp2+1)*16; |
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| 64 | var lWordArray=Array(lNumberOfWords-1); |
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| 65 | var lBytePosition = 0; |
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| 66 | var lByteCount = 0; |
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| 67 | while ( lByteCount < lMessageLength ) { |
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| 68 | lWordCount = (lByteCount-(lByteCount % 4))/4; |
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| 69 | lBytePosition = (lByteCount % 4)*8; |
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| 70 | lWordArray[lWordCount] = (lWordArray[lWordCount] | (string.charCodeAt(lByteCount)<<lBytePosition)); |
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| 71 | lByteCount++; |
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| 72 | } |
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| 73 | lWordCount = (lByteCount-(lByteCount % 4))/4; |
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| 74 | lBytePosition = (lByteCount % 4)*8; |
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| 75 | lWordArray[lWordCount] = lWordArray[lWordCount] | (0x80<<lBytePosition); |
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| 76 | lWordArray[lNumberOfWords-2] = lMessageLength<<3; |
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| 77 | lWordArray[lNumberOfWords-1] = lMessageLength>>>29; |
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| 78 | return lWordArray; |
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| 79 | }; |
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| 80 | |
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| 81 | function WordToHex(lValue) { |
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| 82 | var WordToHexValue="",WordToHexValue_temp="",lByte,lCount; |
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| 83 | for (lCount = 0;lCount<=3;lCount++) { |
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| 84 | lByte = (lValue>>>(lCount*8)) & 255; |
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| 85 | WordToHexValue_temp = "0" + lByte.toString(16); |
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| 86 | WordToHexValue = WordToHexValue + WordToHexValue_temp.substr(WordToHexValue_temp.length-2,2); |
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| 87 | } |
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| 88 | return WordToHexValue; |
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| 89 | }; |
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| 90 | |
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| 91 | function Utf8Encode(string) { |
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| 92 | string = string.replace(/\r\n/g,"\n"); |
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| 93 | var utftext = ""; |
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| 94 | |
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| 95 | for (var n = 0; n < string.length; n++) { |
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| 96 | |
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| 97 | var c = string.charCodeAt(n); |
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| 98 | |
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| 99 | if (c < 128) { |
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| 100 | utftext += String.fromCharCode(c); |
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| 101 | } |
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| 102 | else if((c > 127) && (c < 2048)) { |
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| 103 | utftext += String.fromCharCode((c >> 6) | 192); |
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| 104 | utftext += String.fromCharCode((c & 63) | 128); |
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| 105 | } |
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| 106 | else { |
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| 107 | utftext += String.fromCharCode((c >> 12) | 224); |
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| 108 | utftext += String.fromCharCode(((c >> 6) & 63) | 128); |
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| 109 | utftext += String.fromCharCode((c & 63) | 128); |
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| 110 | } |
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| 111 | |
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| 112 | } |
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| 113 | |
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| 114 | return utftext; |
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| 115 | }; |
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| 116 | |
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| 117 | var x=Array(); |
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| 118 | var k,AA,BB,CC,DD,a,b,c,d; |
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| 119 | var S11=7, S12=12, S13=17, S14=22; |
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| 120 | var S21=5, S22=9 , S23=14, S24=20; |
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| 121 | var S31=4, S32=11, S33=16, S34=23; |
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| 122 | var S41=6, S42=10, S43=15, S44=21; |
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| 123 | |
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| 124 | string = Utf8Encode(string); |
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| 125 | |
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| 126 | x = ConvertToWordArray(string); |
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| 127 | |
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| 128 | a = 0x67452301; b = 0xEFCDAB89; c = 0x98BADCFE; d = 0x10325476; |
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| 129 | |
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| 130 | for (k=0;k<x.length;k+=16) { |
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| 131 | AA=a; BB=b; CC=c; DD=d; |
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| 132 | a=FF(a,b,c,d,x[k+0], S11,0xD76AA478); |
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| 133 | d=FF(d,a,b,c,x[k+1], S12,0xE8C7B756); |
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| 134 | c=FF(c,d,a,b,x[k+2], S13,0x242070DB); |
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| 135 | b=FF(b,c,d,a,x[k+3], S14,0xC1BDCEEE); |
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| 136 | a=FF(a,b,c,d,x[k+4], S11,0xF57C0FAF); |
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| 137 | d=FF(d,a,b,c,x[k+5], S12,0x4787C62A); |
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| 138 | c=FF(c,d,a,b,x[k+6], S13,0xA8304613); |
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| 139 | b=FF(b,c,d,a,x[k+7], S14,0xFD469501); |
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| 140 | a=FF(a,b,c,d,x[k+8], S11,0x698098D8); |
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| 141 | d=FF(d,a,b,c,x[k+9], S12,0x8B44F7AF); |
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| 142 | c=FF(c,d,a,b,x[k+10],S13,0xFFFF5BB1); |
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| 143 | b=FF(b,c,d,a,x[k+11],S14,0x895CD7BE); |
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| 144 | a=FF(a,b,c,d,x[k+12],S11,0x6B901122); |
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| 145 | d=FF(d,a,b,c,x[k+13],S12,0xFD987193); |
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| 146 | c=FF(c,d,a,b,x[k+14],S13,0xA679438E); |
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| 147 | b=FF(b,c,d,a,x[k+15],S14,0x49B40821); |
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| 148 | a=GG(a,b,c,d,x[k+1], S21,0xF61E2562); |
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| 149 | d=GG(d,a,b,c,x[k+6], S22,0xC040B340); |
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| 150 | c=GG(c,d,a,b,x[k+11],S23,0x265E5A51); |
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| 151 | b=GG(b,c,d,a,x[k+0], S24,0xE9B6C7AA); |
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| 152 | a=GG(a,b,c,d,x[k+5], S21,0xD62F105D); |
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| 153 | d=GG(d,a,b,c,x[k+10],S22,0x2441453); |
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| 154 | c=GG(c,d,a,b,x[k+15],S23,0xD8A1E681); |
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| 155 | b=GG(b,c,d,a,x[k+4], S24,0xE7D3FBC8); |
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| 156 | a=GG(a,b,c,d,x[k+9], S21,0x21E1CDE6); |
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| 157 | d=GG(d,a,b,c,x[k+14],S22,0xC33707D6); |
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| 158 | c=GG(c,d,a,b,x[k+3], S23,0xF4D50D87); |
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| 159 | b=GG(b,c,d,a,x[k+8], S24,0x455A14ED); |
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| 160 | a=GG(a,b,c,d,x[k+13],S21,0xA9E3E905); |
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| 161 | d=GG(d,a,b,c,x[k+2], S22,0xFCEFA3F8); |
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| 162 | c=GG(c,d,a,b,x[k+7], S23,0x676F02D9); |
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| 163 | b=GG(b,c,d,a,x[k+12],S24,0x8D2A4C8A); |
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| 164 | a=HH(a,b,c,d,x[k+5], S31,0xFFFA3942); |
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| 165 | d=HH(d,a,b,c,x[k+8], S32,0x8771F681); |
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| 166 | c=HH(c,d,a,b,x[k+11],S33,0x6D9D6122); |
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| 167 | b=HH(b,c,d,a,x[k+14],S34,0xFDE5380C); |
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| 168 | a=HH(a,b,c,d,x[k+1], S31,0xA4BEEA44); |
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| 169 | d=HH(d,a,b,c,x[k+4], S32,0x4BDECFA9); |
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| 170 | c=HH(c,d,a,b,x[k+7], S33,0xF6BB4B60); |
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| 171 | b=HH(b,c,d,a,x[k+10],S34,0xBEBFBC70); |
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| 172 | a=HH(a,b,c,d,x[k+13],S31,0x289B7EC6); |
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| 173 | d=HH(d,a,b,c,x[k+0], S32,0xEAA127FA); |
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| 174 | c=HH(c,d,a,b,x[k+3], S33,0xD4EF3085); |
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| 175 | b=HH(b,c,d,a,x[k+6], S34,0x4881D05); |
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| 176 | a=HH(a,b,c,d,x[k+9], S31,0xD9D4D039); |
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| 177 | d=HH(d,a,b,c,x[k+12],S32,0xE6DB99E5); |
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| 178 | c=HH(c,d,a,b,x[k+15],S33,0x1FA27CF8); |
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| 179 | b=HH(b,c,d,a,x[k+2], S34,0xC4AC5665); |
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| 180 | a=II(a,b,c,d,x[k+0], S41,0xF4292244); |
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| 181 | d=II(d,a,b,c,x[k+7], S42,0x432AFF97); |
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| 182 | c=II(c,d,a,b,x[k+14],S43,0xAB9423A7); |
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| 183 | b=II(b,c,d,a,x[k+5], S44,0xFC93A039); |
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| 184 | a=II(a,b,c,d,x[k+12],S41,0x655B59C3); |
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| 185 | d=II(d,a,b,c,x[k+3], S42,0x8F0CCC92); |
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| 186 | c=II(c,d,a,b,x[k+10],S43,0xFFEFF47D); |
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| 187 | b=II(b,c,d,a,x[k+1], S44,0x85845DD1); |
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| 188 | a=II(a,b,c,d,x[k+8], S41,0x6FA87E4F); |
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| 189 | d=II(d,a,b,c,x[k+15],S42,0xFE2CE6E0); |
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| 190 | c=II(c,d,a,b,x[k+6], S43,0xA3014314); |
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| 191 | b=II(b,c,d,a,x[k+13],S44,0x4E0811A1); |
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| 192 | a=II(a,b,c,d,x[k+4], S41,0xF7537E82); |
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| 193 | d=II(d,a,b,c,x[k+11],S42,0xBD3AF235); |
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| 194 | c=II(c,d,a,b,x[k+2], S43,0x2AD7D2BB); |
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| 195 | b=II(b,c,d,a,x[k+9], S44,0xEB86D391); |
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| 196 | a=AddUnsigned(a,AA); |
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| 197 | b=AddUnsigned(b,BB); |
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| 198 | c=AddUnsigned(c,CC); |
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| 199 | d=AddUnsigned(d,DD); |
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| 200 | } |
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| 201 | |
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| 202 | var temp = WordToHex(a)+WordToHex(b)+WordToHex(c)+WordToHex(d); |
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| 203 | |
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| 204 | return temp.toLowerCase(); |
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| 205 | } |
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