| /* |
| Copyright (c) 2004-2009, The Dojo Foundation All Rights Reserved. |
| Available via Academic Free License >= 2.1 OR the modified BSD license. |
| see: http://dojotoolkit.org/license for details |
| */ |
| |
| |
| if(!dojo._hasResource["dojox.encoding.crypto.RSAKey"]){ |
| dojo._hasResource["dojox.encoding.crypto.RSAKey"]=true; |
| dojo.provide("dojox.encoding.crypto.RSAKey"); |
| dojo.experimental("dojox.encoding.crypto.RSAKey"); |
| dojo.require("dojox.math.BigInteger"); |
| dojo.require("dojox.math.random.Simple"); |
| (function(){ |
| var dm=dojox.math,_1=dm.BigInteger,_2=dm.random.Simple,_3=function(){ |
| return new _2(); |
| }; |
| function _4(s,n,_5){ |
| if(n<s.length+11){ |
| throw new Error("Message too long for RSA"); |
| } |
| var ba=new Array(n); |
| var i=s.length; |
| while(i&&n){ |
| ba[--n]=s.charCodeAt(--i); |
| } |
| ba[--n]=0; |
| var _6=_5(); |
| var x=[0]; |
| while(n>2){ |
| x[0]=0; |
| while(x[0]==0){ |
| _6.nextBytes(x); |
| } |
| ba[--n]=x[0]; |
| } |
| ba[--n]=2; |
| ba[--n]=0; |
| _6.destroy(); |
| return new _1(ba); |
| }; |
| dojo.declare("dojox.encoding.crypto.RSAKey",null,{constructor:function(_7){ |
| this.rngf=_7||_3; |
| this.e=0; |
| this.n=this.d=this.p=this.q=this.dmp1=this.dmq1=this.coeff=null; |
| },setPublic:function(N,E){ |
| if(N&&E&&N.length&&E.length){ |
| this.n=new _1(N,16); |
| this.e=parseInt(E,16); |
| }else{ |
| throw new Error("Invalid RSA public key"); |
| } |
| },encrypt:function(_8){ |
| var m=_4(_8,(this.n.bitLength()+7)>>3,this.rngf); |
| if(!m){ |
| return null; |
| } |
| var c=m.modPowInt(this.e,this.n); |
| if(!c){ |
| return null; |
| } |
| var h=c.toString(16); |
| return h.length%2?"0"+h:h; |
| }}); |
| })(); |
| } |