| /* |
| 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-ext"]){ |
| dojo._hasResource["dojox.encoding.crypto.RSAKey-ext"]=true; |
| dojo.provide("dojox.encoding.crypto.RSAKey-ext"); |
| dojo.experimental("dojox.encoding.crypto.RSAKey-ext"); |
| dojo.require("dojox.encoding.crypto.RSAKey"); |
| dojo.require("dojox.math.BigInteger-ext"); |
| (function(){ |
| var _1=dojox.math.BigInteger; |
| function _2(d,n){ |
| var b=d.toByteArray(); |
| for(var i=0,_3=b.length;i<_3&&!b[i];++i){ |
| } |
| if(b.length-i!==n-1||b[i]!==2){ |
| return null; |
| } |
| for(++i;b[i];){ |
| if(++i>=_3){ |
| return null; |
| } |
| } |
| var _4=""; |
| while(++i<_3){ |
| _4+=String.fromCharCode(b[i]); |
| } |
| return _4; |
| }; |
| dojo.extend(dojox.encoding.crypto.RSAKey,{setPrivate:function(N,E,D){ |
| if(N&&E&&N.length&&E.length){ |
| this.n=new _1(N,16); |
| this.e=parseInt(E,16); |
| this.d=new _1(D,16); |
| }else{ |
| throw new Error("Invalid RSA private key"); |
| } |
| },setPrivateEx:function(N,E,D,P,Q,DP,DQ,C){ |
| if(N&&E&&N.length&&E.length){ |
| this.n=new _1(N,16); |
| this.e=parseInt(E,16); |
| this.d=new _1(D,16); |
| this.p=new _1(P,16); |
| this.q=new _1(Q,16); |
| this.dmp1=new _1(DP,16); |
| this.dmq1=new _1(DQ,16); |
| this.coeff=new _1(C,16); |
| }else{ |
| throw new Error("Invalid RSA private key"); |
| } |
| },generate:function(B,E){ |
| var _5=this.rngf(),qs=B>>1; |
| this.e=parseInt(E,16); |
| var ee=new _1(E,16); |
| for(;;){ |
| for(;;){ |
| this.p=new _1(B-qs,1,_5); |
| if(!this.p.subtract(_1.ONE).gcd(ee).compareTo(_1.ONE)&&this.p.isProbablePrime(10)){ |
| break; |
| } |
| } |
| for(;;){ |
| this.q=new _1(qs,1,_5); |
| if(!this.q.subtract(_1.ONE).gcd(ee).compareTo(_1.ONE)&&this.q.isProbablePrime(10)){ |
| break; |
| } |
| } |
| if(this.p.compareTo(this.q)<=0){ |
| var t=this.p; |
| this.p=this.q; |
| this.q=t; |
| } |
| var p1=this.p.subtract(_1.ONE); |
| var q1=this.q.subtract(_1.ONE); |
| var _6=p1.multiply(q1); |
| if(!_6.gcd(ee).compareTo(_1.ONE)){ |
| this.n=this.p.multiply(this.q); |
| this.d=ee.modInverse(_6); |
| this.dmp1=this.d.mod(p1); |
| this.dmq1=this.d.mod(q1); |
| this.coeff=this.q.modInverse(this.p); |
| break; |
| } |
| } |
| _5.destroy(); |
| },decrypt:function(_7){ |
| var c=new _1(_7,16),m; |
| if(!this.p||!this.q){ |
| m=c.modPow(this.d,this.n); |
| }else{ |
| var cp=c.mod(this.p).modPow(this.dmp1,this.p),cq=c.mod(this.q).modPow(this.dmq1,this.q); |
| while(cp.compareTo(cq)<0){ |
| cp=cp.add(this.p); |
| } |
| m=cp.subtract(cq).multiply(this.coeff).mod(this.p).multiply(this.q).add(cq); |
| } |
| if(!m){ |
| return null; |
| } |
| return _2(m,(this.n.bitLength()+7)>>3); |
| }}); |
| })(); |
| } |