자바스크립트로 MD5 형식으로 변경 하는 예제입니다.
코드 보시면 다소 복잡할수도있는데요.
HEX 으로 변경하고 암호화하는 내용을 살펴보실수 있습니다.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 | <script type="text/javascript">function MD5(sMessage) { function RotateLeft(lValue, iShiftBits) { return (lValue<<iShiftBits) | (lValue>>>(32-iShiftBits)); } function AddUnsigned(lX,lY) { var lX4,lY4,lX8,lY8,lResult; lX8 = (lX & 0x80000000); lY8 = (lY & 0x80000000); lX4 = (lX & 0x40000000); lY4 = (lY & 0x40000000); lResult = (lX & 0x3FFFFFFF)+(lY & 0x3FFFFFFF); if(lX4 & lY4) return (lResult ^ 0x80000000 ^ lX8 ^ lY8); if (lX4 | lY4) { if (lResult & 0x40000000) return (lResult ^ 0xC0000000 ^ lX8 ^ lY8); else return (lResult ^ 0x40000000 ^ lX8 ^ lY8); } else return (lResult ^ lX8 ^ lY8); } function F(x,y,z) { return (x & y) | ((~x) & z); } function G(x,y,z) { return (x & z) | (y & (~z)); } function H(x,y,z) { return (x ^ y ^ z); } function I(x,y,z) { return (y ^ (x | (~z))); } function FF(a,b,c,d,x,s,ac) { a = AddUnsigned(a, AddUnsigned(AddUnsigned(F(b, c, d), x), ac)); return AddUnsigned(RotateLeft(a, s), b); } function GG(a,b,c,d,x,s,ac) { a = AddUnsigned(a, AddUnsigned(AddUnsigned(G(b, c, d), x), ac)); return AddUnsigned(RotateLeft(a, s), b); } function HH(a,b,c,d,x,s,ac) { a = AddUnsigned(a, AddUnsigned(AddUnsigned(H(b, c, d), x), ac)); return AddUnsigned(RotateLeft(a, s), b); } function II(a,b,c,d,x,s,ac) { a = AddUnsigned(a, AddUnsigned(AddUnsigned(I(b, c, d), x), ac)); return AddUnsigned(RotateLeft(a, s), b); } function ConvertToWordArray(sMessage) { var lWordCount; var lMessageLength = sMessage.length; var lNumberOfWords_temp1=lMessageLength + 8; var lNumberOfWords_temp2=(lNumberOfWords_temp1-(lNumberOfWords_temp1 % 64))/64; var lNumberOfWords = (lNumberOfWords_temp2+1)*16; var lWordArray = Array(lNumberOfWords-1); var lBytePosition = 0; var lByteCount = 0; while ( lByteCount < lMessageLength ) { lWordCount = (lByteCount-(lByteCount % 4))/4; lBytePosition = (lByteCount % 4)*8; lWordArray[lWordCount] = (lWordArray[lWordCount] | (sMessage.charCodeAt(lByteCount)<<lBytePosition)); lByteCount++; } lWordCount = (lByteCount-(lByteCount % 4))/4; lBytePosition = (lByteCount % 4)*8; lWordArray[lWordCount] = lWordArray[lWordCount] | (0x80<<lBytePosition); lWordArray[lNumberOfWords-2] = lMessageLength<<3; lWordArray[lNumberOfWords-1] = lMessageLength>>>29; return lWordArray; } function WordToHex(lValue) { var WordToHexValue="",WordToHexValue_temp="",lByte,lCount; for (lCount=0; lCount<=3; lCount++) { lByte = (lValue>>>(lCount*8)) & 255; WordToHexValue_temp = "0" + lByte.toString(16); WordToHexValue = WordToHexValue + WordToHexValue_temp.substr(WordToHexValue_temp.length-2,2); } return WordToHexValue; } var x = Array(); var k,AA,BB,CC,DD,a,b,c,d; var S11=7, S12=12, S13=17, S14=22; var S21=5, S22=9 , S23=14, S24=20; var S31=4, S32=11, S33=16, S34=23; var S41=6, S42=10, S43=15, S44=21; // Steps 1 and 2. Append padding bits and length and convert to words x = ConvertToWordArray(sMessage); // Step 3. Initialise a = 0x67452301; b = 0xEFCDAB89; c = 0x98BADCFE; d = 0x10325476; // Step 4. Process the message in 16-word blocks for (k=0;k<x.length;k+=16) { AA=a; BB=b; CC=c; DD=d; a = FF(a,b,c,d,x[k+0], S11,0xD76AA478); d = FF(d,a,b,c,x[k+1], S12,0xE8C7B756); c = FF(c,d,a,b,x[k+2], S13,0x242070DB); b = FF(b,c,d,a,x[k+3], S14,0xC1BDCEEE); a = FF(a,b,c,d,x[k+4], S11,0xF57C0FAF); d = FF(d,a,b,c,x[k+5], S12,0x4787C62A); c = FF(c,d,a,b,x[k+6], S13,0xA8304613); b = FF(b,c,d,a,x[k+7], S14,0xFD469501); a = FF(a,b,c,d,x[k+8], S11,0x698098D8); d = FF(d,a,b,c,x[k+9], S12,0x8B44F7AF); c = FF(c,d,a,b,x[k+10],S13,0xFFFF5BB1); b = FF(b,c,d,a,x[k+11],S14,0x895CD7BE); a = FF(a,b,c,d,x[k+12],S11,0x6B901122); d = FF(d,a,b,c,x[k+13],S12,0xFD987193); c = FF(c,d,a,b,x[k+14],S13,0xA679438E); b = FF(b,c,d,a,x[k+15],S14,0x49B40821); a = GG(a,b,c,d,x[k+1], S21,0xF61E2562); d = GG(d,a,b,c,x[k+6], S22,0xC040B340); c = GG(c,d,a,b,x[k+11],S23,0x265E5A51); b = GG(b,c,d,a,x[k+0], S24,0xE9B6C7AA); a = GG(a,b,c,d,x[k+5], S21,0xD62F105D); d = GG(d,a,b,c,x[k+10],S22,0x2441453); c = GG(c,d,a,b,x[k+15],S23,0xD8A1E681); b = GG(b,c,d,a,x[k+4], S24,0xE7D3FBC8); a = GG(a,b,c,d,x[k+9], S21,0x21E1CDE6); d = GG(d,a,b,c,x[k+14],S22,0xC33707D6); c = GG(c,d,a,b,x[k+3], S23,0xF4D50D87); b = GG(b,c,d,a,x[k+8], S24,0x455A14ED); a = GG(a,b,c,d,x[k+13],S21,0xA9E3E905); d = GG(d,a,b,c,x[k+2], S22,0xFCEFA3F8); c = GG(c,d,a,b,x[k+7], S23,0x676F02D9); b = GG(b,c,d,a,x[k+12],S24,0x8D2A4C8A); a = HH(a,b,c,d,x[k+5], S31,0xFFFA3942); d = HH(d,a,b,c,x[k+8], S32,0x8771F681); c = HH(c,d,a,b,x[k+11],S33,0x6D9D6122); b = HH(b,c,d,a,x[k+14],S34,0xFDE5380C); a = HH(a,b,c,d,x[k+1], S31,0xA4BEEA44); d = HH(d,a,b,c,x[k+4], S32,0x4BDECFA9); c = HH(c,d,a,b,x[k+7], S33,0xF6BB4B60); b = HH(b,c,d,a,x[k+10],S34,0xBEBFBC70); a = HH(a,b,c,d,x[k+13],S31,0x289B7EC6); d = HH(d,a,b,c,x[k+0], S32,0xEAA127FA); c = HH(c,d,a,b,x[k+3], S33,0xD4EF3085); b = HH(b,c,d,a,x[k+6], S34,0x4881D05); a = HH(a,b,c,d,x[k+9], S31,0xD9D4D039); d = HH(d,a,b,c,x[k+12],S32,0xE6DB99E5); c = HH(c,d,a,b,x[k+15],S33,0x1FA27CF8); b = HH(b,c,d,a,x[k+2], S34,0xC4AC5665); a = II(a,b,c,d,x[k+0], S41,0xF4292244); d = II(d,a,b,c,x[k+7], S42,0x432AFF97); c = II(c,d,a,b,x[k+14],S43,0xAB9423A7); b = II(b,c,d,a,x[k+5], S44,0xFC93A039); a = II(a,b,c,d,x[k+12],S41,0x655B59C3); d = II(d,a,b,c,x[k+3], S42,0x8F0CCC92); c = II(c,d,a,b,x[k+10],S43,0xFFEFF47D); b = II(b,c,d,a,x[k+1], S44,0x85845DD1); a = II(a,b,c,d,x[k+8], S41,0x6FA87E4F); d = II(d,a,b,c,x[k+15],S42,0xFE2CE6E0); c = II(c,d,a,b,x[k+6], S43,0xA3014314); b = II(b,c,d,a,x[k+13],S44,0x4E0811A1); a = II(a,b,c,d,x[k+4], S41,0xF7537E82); d = II(d,a,b,c,x[k+11],S42,0xBD3AF235); c = II(c,d,a,b,x[k+2], S43,0x2AD7D2BB); b = II(b,c,d,a,x[k+9], S44,0xEB86D391); a = AddUnsigned(a,AA); b=AddUnsigned(b,BB); c=AddUnsigned(c,CC); d=AddUnsigned(d,DD); } // Step 5. Output the 128 bit digest var temp = WordToHex(a) + WordToHex(b) + WordToHex(c) + WordToHex(d); return temp.toLowerCase();} var str = 'This is test message.';var md5str = MD5(str);document.write(md5str);</script> |