root / trunk / web / dojo / dojox / encoding / digests / _base.js
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/*
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Copyright (c) 2004-2010, The Dojo Foundation All Rights Reserved.
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Available via Academic Free License >= 2.1 OR the modified BSD license.
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see: http://dojotoolkit.org/license for details
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*/
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if(!dojo._hasResource["dojox.encoding.digests._base"]){ |
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dojo._hasResource["dojox.encoding.digests._base"]=true; |
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dojo.provide("dojox.encoding.digests._base");
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(function(){
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var d=dojox.encoding.digests;
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d.outputTypes={Base64:0,Hex:1,String:2,Raw:3}; |
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d.addWords=function(a,b){ |
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var l=(a&65535)+(b&65535); |
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var m=(a>>16)+(b>>16)+(l>>16); |
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return (m<<16)|(l&65535); |
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}; |
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var _1=8; |
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var _2=(1<<_1)-1; |
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d.stringToWord=function(s){ |
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var wa=[];
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for(var i=0,l=s.length*_1;i<l;i+=_1){ |
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wa[i>>5]|=(s.charCodeAt(i/_1)&_2)<<(i%32); |
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} |
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return wa;
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}; |
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d.wordToString=function(wa){ |
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var s=[];
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for(var i=0,l=wa.length*32;i<l;i+=_1){ |
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s.push(String.fromCharCode((wa[i>>5]>>>(i%32))&_2)); |
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} |
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return s.join(""); |
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}; |
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d.wordToHex=function(wa){ |
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var h="0123456789abcdef",s=[]; |
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for(var i=0,l=wa.length*4;i<l;i++){ |
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s.push(h.charAt((wa[i>>2]>>((i%4)*8+4))&15)+h.charAt((wa[i>>2]>>((i%4)*8))&15)); |
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} |
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return s.join(""); |
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}; |
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d.wordToBase64=function(wa){ |
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var p="=",_3="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/",s=[]; |
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for(var i=0,l=wa.length*4;i<l;i+=3){ |
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var t=(((wa[i>>2]>>8*(i%4))&255)<<16)|(((wa[i+1>>2]>>8*((i+1)%4))&255)<<8)|((wa[i+2>>2]>>8*((i+2)%4))&255); |
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for(var j=0;j<4;j++){ |
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if(i*8+j*6>wa.length*32){ |
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s.push(p); |
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}else{
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s.push(_3.charAt((t>>6*(3-j))&63)); |
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} |
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} |
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} |
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return s.join(""); |
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}; |
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})(); |
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} |