rc4-min.js 887 B

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  1. /*
  2. CryptoJS v3.1.2
  3. code.google.com/p/crypto-js
  4. (c) 2009-2013 by Jeff Mott. All rights reserved.
  5. code.google.com/p/crypto-js/wiki/License
  6. */
  7. (function(){function l(){for(var a=this._S,d=this._i,c=this._j,b=0,e=0;4>e;e++){var d=(d+1)%256,c=(c+a[d])%256,f=a[d];a[d]=a[c];a[c]=f;b|=a[(a[d]+a[c])%256]<<24-8*e}this._i=d;this._j=c;return b}var g=CryptoJS,k=g.lib.StreamCipher,h=g.algo,j=h.RC4=k.extend({_doReset:function(){for(var a=this._key,d=a.words,a=a.sigBytes,c=this._S=[],b=0;256>b;b++)c[b]=b;for(var e=b=0;256>b;b++){var f=b%a,e=(e+c[b]+(d[f>>>2]>>>24-8*(f%4)&255))%256,f=c[b];c[b]=c[e];c[e]=f}this._i=this._j=0},_doProcessBlock:function(a,
  8. d){a[d]^=l.call(this)},keySize:8,ivSize:0});g.RC4=k._createHelper(j);h=h.RC4Drop=j.extend({cfg:j.cfg.extend({drop:192}),_doReset:function(){j._doReset.call(this);for(var a=this.cfg.drop;0<a;a--)l.call(this)}});g.RC4Drop=k._createHelper(h)})();