//des //this takes the key, the message, and whether to encrypt or decrypt function des (key, message, encrypt, mode, iv) { //declaring this locally speeds things up a bit var spfunction1 = new Array (0x1010400,0,0x10000,0x1010404,0x1010004,0x10404,0x4,0x10000,0x400,0x1010400,0x1010404,0x400,0x1000404,0x1010004,0x1000000,0x4,0x404,0x1000400,0x1000400,0x10400,0x10400,0x1010000,0x1010000,0x1000404,0x10004,0x1000004,0x1000004,0x10004,0,0x404,0x10404,0x1000000,0x10000,0x1010404,0x4,0x1010000,0x1010400,0x1000000,0x1000000,0x400,0x1010004,0x10000,0x10400,0x1000004,0x400,0x4,0x1000404,0x10404,0x1010404,0x10004,0x1010000,0x1000404,0x1000004,0x404,0x10404,0x1010400,0x404,0x1000400,0x1000400,0,0x10004,0x10400,0,0x1010004); var spfunction2 = new Array (0x80108020,0x80008000,0x8000,0x108020,0x100000,0x20,0x80100020,0x80008020,0x80000020,0x80108020,0x80108000,0x80000000,0x80008000,0x100000,0x20,0x80100020,0x108000,0x100020,0x80008020,0,0x80000000,0x8000,0x108020,0x80100000,0x100020,0x80000020,0,0x108000,0x8020,0x80108000,0x80100000,0x8020,0,0x108020,0x80100020,0x100000,0x80008020,0x80100000,0x80108000,0x8000,0x80100000,0x80008000,0x20,0x80108020,0x108020,0x20,0x8000,0x80000000,0x8020,0x80108000,0x100000,0x80000020,0x100020,0x80008020,0x80000020,0x100020,0x108000,0,0x80008000,0x8020,0x80000000,0x80100020,0x80108020,0x108000); var spfunction3 = new Array (0x208,0x8020200,0,0x8020008,0x8000200,0,0x20208,0x8000200,0x20008,0x8000008,0x8000008,0x20000,0x8020208,0x20008,0x8020000,0x208,0x8000000,0x8,0x8020200,0x200,0x20200,0x8020000,0x8020008,0x20208,0x8000208,0x20200,0x20000,0x8000208,0x8,0x8020208,0x200,0x8000000,0x8020200,0x8000000,0x20008,0x208,0x20000,0x8020200,0x8000200,0,0x200,0x20008,0x8020208,0x8000200,0x8000008,0x200,0,0x8020008,0x8000208,0x20000,0x8000000,0x8020208,0x8,0x20208,0x20200,0x8000008,0x8020000,0x8000208,0x208,0x8020000,0x20208,0x8,0x8020008,0x20200); var spfunction4 = new Array (0x802001,0x2081,0x2081,0x80,0x802080,0x800081,0x800001,0x2001,0,0x802000,0x802000,0x802081,0x81,0,0x800080,0x800001,0x1,0x2000,0x800000,0x802001,0x80,0x800000,0x2001,0x2080,0x800081,0x1,0x2080,0x800080,0x2000,0x802080,0x802081,0x81,0x800080,0x800001,0x802000,0x802081,0x81,0,0,0x802000,0x2080,0x800080,0x800081,0x1,0x802001,0x2081,0x2081,0x80,0x802081,0x81,0x1,0x2000,0x800001,0x2001,0x802080,0x800081,0x2001,0x2080,0x800000,0x802001,0x80,0x800000,0x2000,0x802080); var spfunction5 = new Array (0x100,0x2080100,0x2080000,0x42000100,0x80000,0x100,0x40000000,0x2080000,0x40080100,0x80000,0x2000100,0x40080100,0x42000100,0x42080000,0x80100,0x40000000,0x2000000,0x40080000,0x40080000,0,0x40000100,0x42080100,0x42080100,0x2000100,0x42080000,0x40000100,0,0x42000000,0x2080100,0x2000000,0x42000000,0x80100,0x80000,0x42000100,0x100,0x2000000,0x40000000,0x2080000,0x42000100,0x40080100,0x2000100,0x40000000,0x42080000,0x2080100,0x40080100,0x100,0x2000000,0x42080000,0x42080100,0x80100,0x42000000,0x42080100,0x2080000,0,0x40080000,0x42000000,0x80100,0x2000100,0x40000100,0x80000,0,0x40080000,0x2080100,0x40000100); var spfunction6 = new Array (0x20000010,0x20400000,0x4000,0x20404010,0x20400000,0x10,0x20404010,0x400000,0x20004000,0x404010,0x400000,0x20000010,0x400010,0x20004000,0x20000000,0x4010,0,0x400010,0x20004010,0x4000,0x404000,0x20004010,0x10,0x20400010,0x20400010,0,0x404010,0x20404000,0x4010,0x404000,0x20404000,0x20000000,0x20004000,0x10,0x20400010,0x404000,0x20404010,0x400000,0x4010,0x20000010,0x400000,0x20004000,0x20000000,0x4010,0x20000010,0x20404010,0x404000,0x20400000,0x404010,0x20404000,0,0x20400010,0x10,0x4000,0x20400000,0x404010,0x4000,0x400010,0x20004010,0,0x20404000,0x20000000,0x400010,0x20004010); var spfunction7 = new Array (0x200000,0x4200002,0x4000802,0,0x800,0x4000802,0x200802,0x4200800,0x4200802,0x200000,0,0x4000002,0x2,0x4000000,0x4200002,0x802,0x4000800,0x200802,0x200002,0x4000800,0x4000002,0x4200000,0x4200800,0x200002,0x4200000,0x800,0x802,0x4200802,0x200800,0x2,0x4000000,0x200800,0x4000000,0x200800,0x200000,0x4000802,0x4000802,0x4200002,0x4200002,0x2,0x200002,0x4000000,0x4000800,0x200000,0x4200800,0x802,0x200802,0x4200800,0x802,0x4000002,0x4200802,0x4200000,0x200800,0,0x2,0x4200802,0,0x200802,0x4200000,0x800,0x4000002,0x4000800,0x800,0x200002); var spfunction8 = new Array (0x10001040,0x1000,0x40000,0x10041040,0x10000000,0x10001040,0x40,0x10000000,0x40040,0x10040000,0x10041040,0x41000,0x10041000,0x41040,0x1000,0x40,0x10040000,0x10000040,0x10001000,0x1040,0x41000,0x40040,0x10040040,0x10041000,0x1040,0,0,0x10040040,0x10000040,0x10001000,0x41040,0x40000,0x41040,0x40000,0x10041000,0x1000,0x40,0x10040040,0x1000,0x41040,0x10001000,0x40,0x10000040,0x10040000,0x10040040,0x10000000,0x40000,0x10001040,0,0x10041040,0x40040,0x10000040,0x10040000,0x10001000,0x10001040,0,0x10041040,0x41000,0x41000,0x1040,0x1040,0x40040,0x10000000,0x10041000); //create the 16 or 48 subkeys we will need var keys = des_createKeys (key); var m=0, i, j, temp, temp2, right1, right2, left, right, looping; var cbcleft, cbcleft2, cbcright, cbcright2 var endloop, loopinc; var len = message.length; var chunk = 0; //set up the loops for single and triple des var iterations = keys.length == 32 ? 3 : 9; //single or triple des if (iterations == 3) {looping = encrypt ? new Array (0, 32, 2) : new Array (30, -2, -2);} else {looping = encrypt ? new Array (0, 32, 2, 62, 30, -2, 64, 96, 2) : new Array (94, 62, -2, 32, 64, 2, 30, -2, -2);} message += "\0\0\0\0\0\0\0\0"; //pad the message out with null bytes //store the result here result = ""; tempresult = ""; if (mode == 1) { //CBC mode cbcleft = (iv.charCodeAt(m++) << 24) | (iv.charCodeAt(m++) << 16) | (iv.charCodeAt(m++) << 8) | iv.charCodeAt(m++); cbcright = (iv.charCodeAt(m++) << 24) | (iv.charCodeAt(m++) << 16) | (iv.charCodeAt(m++) << 8) | iv.charCodeAt(m++); m=0; } //loop through each 64 bit chunk of the message while (m < len) { left = (message.charCodeAt(m++) << 24) | (message.charCodeAt(m++) << 16) | (message.charCodeAt(m++) << 8) | message.charCodeAt(m++); right = (message.charCodeAt(m++) << 24) | (message.charCodeAt(m++) << 16) | (message.charCodeAt(m++) << 8) | message.charCodeAt(m++); //for Cipher Block Chaining mode, xor the message with the previous result if (mode == 1) {if (encrypt) {left ^= cbcleft; right ^= cbcright;} else {cbcleft2 = cbcleft; cbcright2 = cbcright; cbcleft = left; cbcright = right;}} //first each 64 but chunk of the message must be permuted according to IP temp = ((left >>> 4) ^ right) & 0x0f0f0f0f; right ^= temp; left ^= (temp << 4); temp = ((left >>> 16) ^ right) & 0x0000ffff; right ^= temp; left ^= (temp << 16); temp = ((right >>> 2) ^ left) & 0x33333333; left ^= temp; right ^= (temp << 2); temp = ((right >>> 8) ^ left) & 0x00ff00ff; left ^= temp; right ^= (temp << 8); temp = ((left >>> 1) ^ right) & 0x55555555; right ^= temp; left ^= (temp << 1); left = ((left << 1) | (left >>> 31)); right = ((right << 1) | (right >>> 31)); //do this either 1 or 3 times for each chunk of the message for (j=0; j>> 4) | (right << 28)) ^ keys[i+1]; //the result is attained by passing these bytes through the S selection functions temp = left; left = right; right = temp ^ (spfunction2[(right1 >>> 24) & 0x3f] | spfunction4[(right1 >>> 16) & 0x3f] | spfunction6[(right1 >>> 8) & 0x3f] | spfunction8[right1 & 0x3f] | spfunction1[(right2 >>> 24) & 0x3f] | spfunction3[(right2 >>> 16) & 0x3f] | spfunction5[(right2 >>> 8) & 0x3f] | spfunction7[right2 & 0x3f]); } temp = left; left = right; right = temp; //unreverse left and right } //for either 1 or 3 iterations //move then each one bit to the right left = ((left >>> 1) | (left << 31)); right = ((right >>> 1) | (right << 31)); //now perform IP-1, which is IP in the opposite direction temp = ((left >>> 1) ^ right) & 0x55555555; right ^= temp; left ^= (temp << 1); temp = ((right >>> 8) ^ left) & 0x00ff00ff; left ^= temp; right ^= (temp << 8); temp = ((right >>> 2) ^ left) & 0x33333333; left ^= temp; right ^= (temp << 2); temp = ((left >>> 16) ^ right) & 0x0000ffff; right ^= temp; left ^= (temp << 16); temp = ((left >>> 4) ^ right) & 0x0f0f0f0f; right ^= temp; left ^= (temp << 4); //for Cipher Block Chaining mode, xor the message with the previous result if (mode == 1) {if (encrypt) {cbcleft = left; cbcright = right;} else {left ^= cbcleft2; right ^= cbcright2;}} tempresult += String.fromCharCode ((left>>>24), ((left>>>16) & 0xff), ((left>>>8) & 0xff), (left & 0xff), (right>>>24), ((right>>>16) & 0xff), ((right>>>8) & 0xff), (right & 0xff)); chunk += 8; if (chunk == 512) {result += tempresult; tempresult = ""; chunk = 0;} } //for every 8 characters, or 64 bits in the message //return the result as an array return result + tempresult; } //end of des //des_createKeys //this takes as input a 64 bit key (even though only 56 bits are used) //as an array of 2 integers, and returns 16 48 bit keys function des_createKeys (key) { //declaring this locally speeds things up a bit pc2bytes0 = new Array (0,0x4,0x20000000,0x20000004,0x10000,0x10004,0x20010000,0x20010004,0x200,0x204,0x20000200,0x20000204,0x10200,0x10204,0x20010200,0x20010204); pc2bytes1 = new Array (0,0x1,0x100000,0x100001,0x4000000,0x4000001,0x4100000,0x4100001,0x100,0x101,0x100100,0x100101,0x4000100,0x4000101,0x4100100,0x4100101); pc2bytes2 = new Array (0,0x8,0x800,0x808,0x1000000,0x1000008,0x1000800,0x1000808,0,0x8,0x800,0x808,0x1000000,0x1000008,0x1000800,0x1000808); pc2bytes3 = new Array (0,0x200000,0x8000000,0x8200000,0x2000,0x202000,0x8002000,0x8202000,0x20000,0x220000,0x8020000,0x8220000,0x22000,0x222000,0x8022000,0x8222000); pc2bytes4 = new Array (0,0x40000,0x10,0x40010,0,0x40000,0x10,0x40010,0x1000,0x41000,0x1010,0x41010,0x1000,0x41000,0x1010,0x41010); pc2bytes5 = new Array (0,0x400,0x20,0x420,0,0x400,0x20,0x420,0x2000000,0x2000400,0x2000020,0x2000420,0x2000000,0x2000400,0x2000020,0x2000420); pc2bytes6 = new Array (0,0x10000000,0x80000,0x10080000,0x2,0x10000002,0x80002,0x10080002,0,0x10000000,0x80000,0x10080000,0x2,0x10000002,0x80002,0x10080002); pc2bytes7 = new Array (0,0x10000,0x800,0x10800,0x20000000,0x20010000,0x20000800,0x20010800,0x20000,0x30000,0x20800,0x30800,0x20020000,0x20030000,0x20020800,0x20030800); pc2bytes8 = new Array (0,0x40000,0,0x40000,0x2,0x40002,0x2,0x40002,0x2000000,0x2040000,0x2000000,0x2040000,0x2000002,0x2040002,0x2000002,0x2040002); pc2bytes9 = new Array (0,0x10000000,0x8,0x10000008,0,0x10000000,0x8,0x10000008,0x400,0x10000400,0x408,0x10000408,0x400,0x10000400,0x408,0x10000408); pc2bytes10 = new Array (0,0x20,0,0x20,0x100000,0x100020,0x100000,0x100020,0x2000,0x2020,0x2000,0x2020,0x102000,0x102020,0x102000,0x102020); pc2bytes11 = new Array (0,0x1000000,0x200,0x1000200,0x200000,0x1200000,0x200200,0x1200200,0x4000000,0x5000000,0x4000200,0x5000200,0x4200000,0x5200000,0x4200200,0x5200200); pc2bytes12 = new Array (0,0x1000,0x8000000,0x8001000,0x80000,0x81000,0x8080000,0x8081000,0x10,0x1010,0x8000010,0x8001010,0x80010,0x81010,0x8080010,0x8081010); pc2bytes13 = new Array (0,0x4,0x100,0x104,0,0x4,0x100,0x104,0x1,0x5,0x101,0x105,0x1,0x5,0x101,0x105); //how many iterations (1 for des, 3 for triple des) var iterations = key.length >= 24 ? 3 : 1; //stores the return keys var keys = new Array (32 * iterations); //now define the left shifts which need to be done var shifts = new Array (0, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0); //other variables var lefttemp, righttemp, m=0, n=0, temp; for (var j=0; j>> 4) ^ right) & 0x0f0f0f0f; right ^= temp; left ^= (temp << 4); temp = ((right >>> -16) ^ left) & 0x0000ffff; left ^= temp; right ^= (temp << -16); temp = ((left >>> 2) ^ right) & 0x33333333; right ^= temp; left ^= (temp << 2); temp = ((right >>> -16) ^ left) & 0x0000ffff; left ^= temp; right ^= (temp << -16); temp = ((left >>> 1) ^ right) & 0x55555555; right ^= temp; left ^= (temp << 1); temp = ((right >>> 8) ^ left) & 0x00ff00ff; left ^= temp; right ^= (temp << 8); temp = ((left >>> 1) ^ right) & 0x55555555; right ^= temp; left ^= (temp << 1); //the right side needs to be shifted and to get the last four bits of the left side temp = (left << 8) | ((right >>> 20) & 0x000000f0); //left needs to be put upside down left = (right << 24) | ((right << 8) & 0xff0000) | ((right >>> 8) & 0xff00) | ((right >>> 24) & 0xf0); right = temp; //now go through and perform these shifts on the left and right keys for (i=0; i < shifts.length; i++) { //shift the keys either one or two bits to the left if (shifts[i]) {left = (left << 2) | (left >>> 26); right = (right << 2) | (right >>> 26);} else {left = (left << 1) | (left >>> 27); right = (right << 1) | (right >>> 27);} left &= 0xfffffff0; right &= 0xfffffff0; //now apply PC-2, in such a way that E is easier when encrypting or decrypting //this conversion will look like PC-2 except only the last 6 bits of each byte are used //rather than 48 consecutive bits and the order of lines will be according to //how the S selection functions will be applied: S2, S4, S6, S8, S1, S3, S5, S7 lefttemp = pc2bytes0[left >>> 28] | pc2bytes1[(left >>> 24) & 0xf] | pc2bytes2[(left >>> 20) & 0xf] | pc2bytes3[(left >>> 16) & 0xf] | pc2bytes4[(left >>> 12) & 0xf] | pc2bytes5[(left >>> 8) & 0xf] | pc2bytes6[(left >>> 4) & 0xf]; righttemp = pc2bytes7[right >>> 28] | pc2bytes8[(right >>> 24) & 0xf] | pc2bytes9[(right >>> 20) & 0xf] | pc2bytes10[(right >>> 16) & 0xf] | pc2bytes11[(right >>> 12) & 0xf] | pc2bytes12[(right >>> 8) & 0xf] | pc2bytes13[(right >>> 4) & 0xf]; temp = ((righttemp >>> 16) ^ lefttemp) & 0x0000ffff; keys[n++] = lefttemp ^ temp; keys[n++] = righttemp ^ (temp << 16); } } //for each iterations //return the keys we've created return keys; } //end of des_createKeys //printHexArray function printHex (s) { var r=""; var hexes = new Array ("0","1","2","3","4","5","6","7","8","9","a","b","c","d","e","f"); for (var i=0; i> 4] + hexes [s.charCodeAt(i) & 0xf];} return r; } function printDec (s) { var r=""; for (var i=0; i=0) { a=a%0x80000000; a>>=b; a+=0x40000000>>(b-1); } else a>>=b; return a; } function shl1(a) { a=a%0x80000000; if (a&0x40000000==0x40000000) { a-=0x40000000; a*=2; a+=0x80000000; } else a*=2; return a; } function shl(a,b) { a=integer(a); b=integer(b); for (var i=0;i=0) if (t2>=0) return ((t1&t2)+0x80000000); else return (t1&b); else if (t2>=0) return (a&t2); else return (a&b); } function or(a,b) { a=integer(a); b=integer(b); var t1=(a-0x80000000); var t2=(b-0x80000000); if (t1>=0) if (t2>=0) return ((t1|t2)+0x80000000); else return ((t1|b)+0x80000000); else if (t2>=0) return ((a|t2)+0x80000000); else return (a|b); } function xor(a,b) { a=integer(a); b=integer(b); var t1=(a-0x80000000); var t2=(b-0x80000000); if (t1>=0) if (t2>=0) return (t1^t2); else return ((t1^b)+0x80000000); else if (t2>=0) return ((a^t2)+0x80000000); else return (a^b); } function not(a) { a=integer(a); return (0xffffffff-a); } /* Here begin the real algorithm */ var state = new array(4); var count = new array(2); count[0] = 0; count[1] = 0; var buffer = new array(64); var transformBuffer = new array(16); var digestBits = new array(16); var S11 = 7; var S12 = 12; var S13 = 17; var S14 = 22; var S21 = 5; var S22 = 9; var S23 = 14; var S24 = 20; var S31 = 4; var S32 = 11; var S33 = 16; var S34 = 23; var S41 = 6; var S42 = 10; var S43 = 15; var S44 = 21; function F(x,y,z) { return or(and(x,y),and(not(x),z)); } function G(x,y,z) { return or(and(x,z),and(y,not(z))); } function H(x,y,z) { return xor(xor(x,y),z); } function I(x,y,z) { return xor(y ,or(x , not(z))); } function rotateLeft(a,n) { return or(shl(a, n),(shr(a,(32 - n)))); } function FF(a,b,c,d,x,s,ac) { a = a+F(b, c, d) + x + ac; a = rotateLeft(a, s); a = a+b; return a; } function GG(a,b,c,d,x,s,ac) { a = a+G(b, c, d) +x + ac; a = rotateLeft(a, s); a = a+b; return a; } function HH(a,b,c,d,x,s,ac) { a = a+H(b, c, d) + x + ac; a = rotateLeft(a, s); a = a+b; return a; } function II(a,b,c,d,x,s,ac) { a = a+I(b, c, d) + x + ac; a = rotateLeft(a, s); a = a+b; return a; } function transform(buf,offset) { var a=0, b=0, c=0, d=0; var x = transformBuffer; a = state[0]; b = state[1]; c = state[2]; d = state[3]; for (i = 0; i < 16; i++) { x[i] = and(buf[i*4+offset],0xff); for (j = 1; j < 4; j++) { x[i]+=shl(and(buf[i*4+j+offset] ,0xff), j * 8); } } /* Round 1 */ a = FF ( a, b, c, d, x[ 0], S11, 0xd76aa478); /* 1 */ d = FF ( d, a, b, c, x[ 1], S12, 0xe8c7b756); /* 2 */ c = FF ( c, d, a, b, x[ 2], S13, 0x242070db); /* 3 */ b = FF ( b, c, d, a, x[ 3], S14, 0xc1bdceee); /* 4 */ a = FF ( a, b, c, d, x[ 4], S11, 0xf57c0faf); /* 5 */ d = FF ( d, a, b, c, x[ 5], S12, 0x4787c62a); /* 6 */ c = FF ( c, d, a, b, x[ 6], S13, 0xa8304613); /* 7 */ b = FF ( b, c, d, a, x[ 7], S14, 0xfd469501); /* 8 */ a = FF ( a, b, c, d, x[ 8], S11, 0x698098d8); /* 9 */ d = FF ( d, a, b, c, x[ 9], S12, 0x8b44f7af); /* 10 */ c = FF ( c, d, a, b, x[10], S13, 0xffff5bb1); /* 11 */ b = FF ( b, c, d, a, x[11], S14, 0x895cd7be); /* 12 */ a = FF ( a, b, c, d, x[12], S11, 0x6b901122); /* 13 */ d = FF ( d, a, b, c, x[13], S12, 0xfd987193); /* 14 */ c = FF ( c, d, a, b, x[14], S13, 0xa679438e); /* 15 */ b = FF ( b, c, d, a, x[15], S14, 0x49b40821); /* 16 */ /* Round 2 */ a = GG ( a, b, c, d, x[ 1], S21, 0xf61e2562); /* 17 */ d = GG ( d, a, b, c, x[ 6], S22, 0xc040b340); /* 18 */ c = GG ( c, d, a, b, x[11], S23, 0x265e5a51); /* 19 */ b = GG ( b, c, d, a, x[ 0], S24, 0xe9b6c7aa); /* 20 */ a = GG ( a, b, c, d, x[ 5], S21, 0xd62f105d); /* 21 */ d = GG ( d, a, b, c, x[10], S22, 0x2441453); /* 22 */ c = GG ( c, d, a, b, x[15], S23, 0xd8a1e681); /* 23 */ b = GG ( b, c, d, a, x[ 4], S24, 0xe7d3fbc8); /* 24 */ a = GG ( a, b, c, d, x[ 9], S21, 0x21e1cde6); /* 25 */ d = GG ( d, a, b, c, x[14], S22, 0xc33707d6); /* 26 */ c = GG ( c, d, a, b, x[ 3], S23, 0xf4d50d87); /* 27 */ b = GG ( b, c, d, a, x[ 8], S24, 0x455a14ed); /* 28 */ a = GG ( a, b, c, d, x[13], S21, 0xa9e3e905); /* 29 */ d = GG ( d, a, b, c, x[ 2], S22, 0xfcefa3f8); /* 30 */ c = GG ( c, d, a, b, x[ 7], S23, 0x676f02d9); /* 31 */ b = GG ( b, c, d, a, x[12], S24, 0x8d2a4c8a); /* 32 */ /* Round 3 */ a = HH ( a, b, c, d, x[ 5], S31, 0xfffa3942); /* 33 */ d = HH ( d, a, b, c, x[ 8], S32, 0x8771f681); /* 34 */ c = HH ( c, d, a, b, x[11], S33, 0x6d9d6122); /* 35 */ b = HH ( b, c, d, a, x[14], S34, 0xfde5380c); /* 36 */ a = HH ( a, b, c, d, x[ 1], S31, 0xa4beea44); /* 37 */ d = HH ( d, a, b, c, x[ 4], S32, 0x4bdecfa9); /* 38 */ c = HH ( c, d, a, b, x[ 7], S33, 0xf6bb4b60); /* 39 */ b = HH ( b, c, d, a, x[10], S34, 0xbebfbc70); /* 40 */ a = HH ( a, b, c, d, x[13], S31, 0x289b7ec6); /* 41 */ d = HH ( d, a, b, c, x[ 0], S32, 0xeaa127fa); /* 42 */ c = HH ( c, d, a, b, x[ 3], S33, 0xd4ef3085); /* 43 */ b = HH ( b, c, d, a, x[ 6], S34, 0x4881d05); /* 44 */ a = HH ( a, b, c, d, x[ 9], S31, 0xd9d4d039); /* 45 */ d = HH ( d, a, b, c, x[12], S32, 0xe6db99e5); /* 46 */ c = HH ( c, d, a, b, x[15], S33, 0x1fa27cf8); /* 47 */ b = HH ( b, c, d, a, x[ 2], S34, 0xc4ac5665); /* 48 */ /* Round 4 */ a = II ( a, b, c, d, x[ 0], S41, 0xf4292244); /* 49 */ d = II ( d, a, b, c, x[ 7], S42, 0x432aff97); /* 50 */ c = II ( c, d, a, b, x[14], S43, 0xab9423a7); /* 51 */ b = II ( b, c, d, a, x[ 5], S44, 0xfc93a039); /* 52 */ a = II ( a, b, c, d, x[12], S41, 0x655b59c3); /* 53 */ d = II ( d, a, b, c, x[ 3], S42, 0x8f0ccc92); /* 54 */ c = II ( c, d, a, b, x[10], S43, 0xffeff47d); /* 55 */ b = II ( b, c, d, a, x[ 1], S44, 0x85845dd1); /* 56 */ a = II ( a, b, c, d, x[ 8], S41, 0x6fa87e4f); /* 57 */ d = II ( d, a, b, c, x[15], S42, 0xfe2ce6e0); /* 58 */ c = II ( c, d, a, b, x[ 6], S43, 0xa3014314); /* 59 */ b = II ( b, c, d, a, x[13], S44, 0x4e0811a1); /* 60 */ a = II ( a, b, c, d, x[ 4], S41, 0xf7537e82); /* 61 */ d = II ( d, a, b, c, x[11], S42, 0xbd3af235); /* 62 */ c = II ( c, d, a, b, x[ 2], S43, 0x2ad7d2bb); /* 63 */ b = II ( b, c, d, a, x[ 9], S44, 0xeb86d391); /* 64 */ state[0] +=a; state[1] +=b; state[2] +=c; state[3] +=d; } function init() { count[0]=count[1] = 0; state[0] = 0x67452301; state[1] = 0xefcdab89; state[2] = 0x98badcfe; state[3] = 0x10325476; for (i = 0; i < digestBits.length; i++) digestBits[i] = 0; } function update(b) { var index,i; index = and(shr(count[0],3) , 0x3f); if (count[0]<0xffffffff-7) count[0] += 8; else { count[1]++; count[0]-=0xffffffff+1; count[0]+=8; } buffer[index] = and(b,0xff); if (index >= 63) { transform(buffer, 0); } } function finish() { var bits = new array(8); var padding; var i=0, index=0, padLen=0; for (i = 0; i < 4; i++) { bits[i] = and(shr(count[0],(i * 8)), 0xff); } for (i = 0; i < 4; i++) { bits[i+4]=and(shr(count[1],(i * 8)), 0xff); } index = and(shr(count[0], 3) ,0x3f); padLen = (index < 56) ? (56 - index) : (120 - index); padding = new array(64); padding[0] = 0x80; for (i=0;i?@ABCDEFGHIJKLMNOPQRSTUVWXYZ"+ "[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~"; function MD5(entree) { var l,s,k,ka,kb,kc,kd; init(); for (k=0;k