| dojo.require("dojo.crypto"); |
| dojo.provide("dojo.crypto.MD5"); |
| |
| /* Return to a port of Paul Johnstone's MD5 implementation |
| * http://pajhome.org.uk/crypt/md5/index.html |
| * |
| * Copyright (C) Paul Johnston 1999 - 2002. |
| * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet |
| * Distributed under the BSD License |
| * |
| * Dojo port by Tom Trenka |
| * |
| * 2005-12-7 |
| * All conversions are internalized (no dependencies) |
| * implemented getHMAC for message digest auth. |
| */ |
| dojo.crypto.MD5 = new function(){ |
| // summary |
| // object for creating digests using the MD5 algorithm |
| var chrsz=8; |
| var mask=(1<<chrsz)-1; |
| function toWord(s) { |
| var wa=[]; |
| for(var i=0; i<s.length*chrsz; i+=chrsz) |
| wa[i>>5]|=(s.charCodeAt(i/chrsz)&mask)<<(i%32); |
| return wa; |
| } |
| function toString(wa){ |
| var s=[]; |
| for(var i=0; i<wa.length*32; i+=chrsz) |
| s.push(String.fromCharCode((wa[i>>5]>>>(i%32))&mask)); |
| return s.join(""); |
| } |
| function toHex(wa) { |
| var h="0123456789abcdef"; |
| var s=[]; |
| for(var i=0; i<wa.length*4; i++){ |
| s.push(h.charAt((wa[i>>2]>>((i%4)*8+4))&0xF)+h.charAt((wa[i>>2]>>((i%4)*8))&0xF)); |
| } |
| return s.join(""); |
| } |
| function toBase64(wa){ |
| var p="="; |
| var tab="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; |
| var s=[]; |
| for(var i=0; i<wa.length*4; i+=3){ |
| var t=(((wa[i>>2]>>8*(i%4))&0xFF)<<16)|(((wa[i+1>>2]>>8*((i+1)%4))&0xFF)<<8)|((wa[i+2>>2]>>8*((i+2)%4))&0xFF); |
| for(var j=0; j<4; j++){ |
| if(i*8+j*6>wa.length*32) s.push(p); |
| else s.push(tab.charAt((t>>6*(3-j))&0x3F)); |
| } |
| } |
| return s.join(""); |
| } |
| function add(x,y) { |
| var l=(x&0xFFFF)+(y&0xFFFF); |
| var m=(x>>16)+(y>>16)+(l>>16); |
| return (m<<16)|(l&0xFFFF); |
| } |
| function R(n,c){ return (n<<c)|(n>>>(32-c)); } |
| function C(q,a,b,x,s,t){ return add(R(add(add(a,q),add(x,t)),s),b); } |
| function FF(a,b,c,d,x,s,t){ return C((b&c)|((~b)&d),a,b,x,s,t); } |
| function GG(a,b,c,d,x,s,t){ return C((b&d)|(c&(~d)),a,b,x,s,t); } |
| function HH(a,b,c,d,x,s,t){ return C(b^c^d,a,b,x,s,t); } |
| function II(a,b,c,d,x,s,t){ return C(c^(b|(~d)),a,b,x,s,t); } |
| function core(x,len){ |
| x[len>>5]|=0x80<<((len)%32); |
| x[(((len+64)>>>9)<<4)+14]=len; |
| var a= 1732584193; |
| var b=-271733879; |
| var c=-1732584194; |
| var d= 271733878; |
| for(var i=0; i<x.length; i+=16){ |
| var olda=a; |
| var oldb=b; |
| var oldc=c; |
| var oldd=d; |
| |
| a=FF(a,b,c,d,x[i+ 0],7 ,-680876936); |
| d=FF(d,a,b,c,x[i+ 1],12,-389564586); |
| c=FF(c,d,a,b,x[i+ 2],17, 606105819); |
| b=FF(b,c,d,a,x[i+ 3],22,-1044525330); |
| a=FF(a,b,c,d,x[i+ 4],7 ,-176418897); |
| d=FF(d,a,b,c,x[i+ 5],12, 1200080426); |
| c=FF(c,d,a,b,x[i+ 6],17,-1473231341); |
| b=FF(b,c,d,a,x[i+ 7],22,-45705983); |
| a=FF(a,b,c,d,x[i+ 8],7 , 1770035416); |
| d=FF(d,a,b,c,x[i+ 9],12,-1958414417); |
| c=FF(c,d,a,b,x[i+10],17,-42063); |
| b=FF(b,c,d,a,x[i+11],22,-1990404162); |
| a=FF(a,b,c,d,x[i+12],7 , 1804603682); |
| d=FF(d,a,b,c,x[i+13],12,-40341101); |
| c=FF(c,d,a,b,x[i+14],17,-1502002290); |
| b=FF(b,c,d,a,x[i+15],22, 1236535329); |
| |
| a=GG(a,b,c,d,x[i+ 1],5 ,-165796510); |
| d=GG(d,a,b,c,x[i+ 6],9 ,-1069501632); |
| c=GG(c,d,a,b,x[i+11],14, 643717713); |
| b=GG(b,c,d,a,x[i+ 0],20,-373897302); |
| a=GG(a,b,c,d,x[i+ 5],5 ,-701558691); |
| d=GG(d,a,b,c,x[i+10],9 , 38016083); |
| c=GG(c,d,a,b,x[i+15],14,-660478335); |
| b=GG(b,c,d,a,x[i+ 4],20,-405537848); |
| a=GG(a,b,c,d,x[i+ 9],5 , 568446438); |
| d=GG(d,a,b,c,x[i+14],9 ,-1019803690); |
| c=GG(c,d,a,b,x[i+ 3],14,-187363961); |
| b=GG(b,c,d,a,x[i+ 8],20, 1163531501); |
| a=GG(a,b,c,d,x[i+13],5 ,-1444681467); |
| d=GG(d,a,b,c,x[i+ 2],9 ,-51403784); |
| c=GG(c,d,a,b,x[i+ 7],14, 1735328473); |
| b=GG(b,c,d,a,x[i+12],20,-1926607734); |
| |
| a=HH(a,b,c,d,x[i+ 5],4 ,-378558); |
| d=HH(d,a,b,c,x[i+ 8],11,-2022574463); |
| c=HH(c,d,a,b,x[i+11],16, 1839030562); |
| b=HH(b,c,d,a,x[i+14],23,-35309556); |
| a=HH(a,b,c,d,x[i+ 1],4 ,-1530992060); |
| d=HH(d,a,b,c,x[i+ 4],11, 1272893353); |
| c=HH(c,d,a,b,x[i+ 7],16,-155497632); |
| b=HH(b,c,d,a,x[i+10],23,-1094730640); |
| a=HH(a,b,c,d,x[i+13],4 , 681279174); |
| d=HH(d,a,b,c,x[i+ 0],11,-358537222); |
| c=HH(c,d,a,b,x[i+ 3],16,-722521979); |
| b=HH(b,c,d,a,x[i+ 6],23, 76029189); |
| a=HH(a,b,c,d,x[i+ 9],4 ,-640364487); |
| d=HH(d,a,b,c,x[i+12],11,-421815835); |
| c=HH(c,d,a,b,x[i+15],16, 530742520); |
| b=HH(b,c,d,a,x[i+ 2],23,-995338651); |
| |
| a=II(a,b,c,d,x[i+ 0],6 ,-198630844); |
| d=II(d,a,b,c,x[i+ 7],10, 1126891415); |
| c=II(c,d,a,b,x[i+14],15,-1416354905); |
| b=II(b,c,d,a,x[i+ 5],21,-57434055); |
| a=II(a,b,c,d,x[i+12],6 , 1700485571); |
| d=II(d,a,b,c,x[i+ 3],10,-1894986606); |
| c=II(c,d,a,b,x[i+10],15,-1051523); |
| b=II(b,c,d,a,x[i+ 1],21,-2054922799); |
| a=II(a,b,c,d,x[i+ 8],6 , 1873313359); |
| d=II(d,a,b,c,x[i+15],10,-30611744); |
| c=II(c,d,a,b,x[i+ 6],15,-1560198380); |
| b=II(b,c,d,a,x[i+13],21, 1309151649); |
| a=II(a,b,c,d,x[i+ 4],6 ,-145523070); |
| d=II(d,a,b,c,x[i+11],10,-1120210379); |
| c=II(c,d,a,b,x[i+ 2],15, 718787259); |
| b=II(b,c,d,a,x[i+ 9],21,-343485551); |
| |
| a = add(a,olda); |
| b = add(b,oldb); |
| c = add(c,oldc); |
| d = add(d,oldd); |
| } |
| return [a,b,c,d]; |
| } |
| function hmac(data,key){ |
| var wa=toWord(key); |
| if(wa.length>16) wa=core(wa,key.length*chrsz); |
| var l=[], r=[]; |
| for(var i=0; i<16; i++){ |
| l[i]=wa[i]^0x36363636; |
| r[i]=wa[i]^0x5c5c5c5c; |
| } |
| var h=core(l.concat(toWord(data)),512+data.length*chrsz); |
| return core(r.concat(h),640); |
| } |
| |
| // Public functions |
| this.compute=function(/* string */data, /* dojo.crypto.outputTypes */outputType){ |
| // summary |
| // computes the digest of data, and returns the result as a string of type outputType |
| var out=outputType||dojo.crypto.outputTypes.Base64; |
| switch(out){ |
| case dojo.crypto.outputTypes.Hex:{ |
| return toHex(core(toWord(data),data.length*chrsz)); // string |
| } |
| case dojo.crypto.outputTypes.String:{ |
| return toString(core(toWord(data),data.length*chrsz)); // string |
| } |
| default:{ |
| return toBase64(core(toWord(data),data.length*chrsz)); // string |
| } |
| } |
| }; |
| this.getHMAC=function(/* string */data, /* string */key, /* dojo.crypto.outputTypes */outputType){ |
| // summary |
| // computes a digest of data using key, and returns the result as a string of outputType |
| var out=outputType||dojo.crypto.outputTypes.Base64; |
| switch(out){ |
| case dojo.crypto.outputTypes.Hex:{ |
| return toHex(hmac(data,key)); // string |
| } |
| case dojo.crypto.outputTypes.String:{ |
| return toString(hmac(data,key)); // string |
| } |
| default:{ |
| return toBase64(hmac(data,key)); // string |
| } |
| } |
| }; |
| }(); |