2 lines
2.2 KiB
JavaScript
2 lines
2.2 KiB
JavaScript
(function(root,factory){if(typeof exports==="object"){module.exports=exports=factory(require("./core"))}else if(typeof define==="function"&&define.amd){define(["./core"],factory)}else{factory(root.CryptoJS)}})(this,function(CryptoJS){(function(Math){var C=CryptoJS;var C_lib=C.lib;var WordArray=C_lib.WordArray;var Hasher=C_lib.Hasher;var C_algo=C.algo;var H=[];var K=[];(function(){function isPrime(n){var sqrtN=Math.sqrt(n);for(var factor=2;factor<=sqrtN;factor++){if(!(n%factor)){return false}}return true}function getFractionalBits(n){return(n-(n|0))*4294967296|0}var n=2;var nPrime=0;while(nPrime<64){if(isPrime(n)){if(nPrime<8){H[nPrime]=getFractionalBits(Math.pow(n,1/2))}K[nPrime]=getFractionalBits(Math.pow(n,1/3));nPrime++}n++}})();var W=[];var SHA256=C_algo.SHA256=Hasher.extend({_doReset:function(){this._hash=new WordArray.init(H.slice(0))},_doProcessBlock:function(M,offset){var H=this._hash.words;var a=H[0];var b=H[1];var c=H[2];var d=H[3];var e=H[4];var f=H[5];var g=H[6];var h=H[7];for(var i=0;i<64;i++){if(i<16){W[i]=M[offset+i]|0}else{var gamma0x=W[i-15];var gamma0=(gamma0x<<25|gamma0x>>>7)^(gamma0x<<14|gamma0x>>>18)^gamma0x>>>3;var gamma1x=W[i-2];var gamma1=(gamma1x<<15|gamma1x>>>17)^(gamma1x<<13|gamma1x>>>19)^gamma1x>>>10;W[i]=gamma0+W[i-7]+gamma1+W[i-16]}var ch=e&f^~e&g;var maj=a&b^a&c^b&c;var sigma0=(a<<30|a>>>2)^(a<<19|a>>>13)^(a<<10|a>>>22);var sigma1=(e<<26|e>>>6)^(e<<21|e>>>11)^(e<<7|e>>>25);var t1=h+sigma1+ch+K[i]+W[i];var t2=sigma0+maj;h=g;g=f;f=e;e=d+t1|0;d=c;c=b;b=a;a=t1+t2|0}H[0]=H[0]+a|0;H[1]=H[1]+b|0;H[2]=H[2]+c|0;H[3]=H[3]+d|0;H[4]=H[4]+e|0;H[5]=H[5]+f|0;H[6]=H[6]+g|0;H[7]=H[7]+h|0},_doFinalize:function(){var data=this._data;var dataWords=data.words;var nBitsTotal=this._nDataBytes*8;var nBitsLeft=data.sigBytes*8;dataWords[nBitsLeft>>>5]|=128<<24-nBitsLeft%32;dataWords[(nBitsLeft+64>>>9<<4)+14]=Math.floor(nBitsTotal/4294967296);dataWords[(nBitsLeft+64>>>9<<4)+15]=nBitsTotal;data.sigBytes=dataWords.length*4;this._process();return this._hash},clone:function(){var clone=Hasher.clone.call(this);clone._hash=this._hash.clone();return clone}});C.SHA256=Hasher._createHelper(SHA256);C.HmacSHA256=Hasher._createHmacHelper(SHA256)})(Math);return CryptoJS.SHA256});
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