15 lines
4.0 KiB
JavaScript
15 lines
4.0 KiB
JavaScript
/*
|
|
CryptoJS v3.0.2
|
|
code.google.com/p/crypto-js
|
|
(c) 2009-2012 by Jeff Mott. All rights reserved.
|
|
code.google.com/p/crypto-js/wiki/License
|
|
*/
|
|
CryptoJS.lib.Cipher||function(r){var f=CryptoJS,e=f.lib,i=e.Base,j=e.WordArray,o=e.BufferedBlockAlgorithm,p=f.enc.Base64,s=f.algo.EvpKDF,l=e.Cipher=o.extend({cfg:i.extend(),createEncryptor:function(a,b){return this.create(this._ENC_XFORM_MODE,a,b)},createDecryptor:function(a,b){return this.create(this._DEC_XFORM_MODE,a,b)},init:function(a,b,c){this.cfg=this.cfg.extend(c);this._xformMode=a;this._key=b;this.reset()},reset:function(){o.reset.call(this);this._doReset()},process:function(a){this._append(a);
|
|
return this._process()},finalize:function(a){a&&this._append(a);return this._doFinalize()},keySize:4,ivSize:4,_ENC_XFORM_MODE:1,_DEC_XFORM_MODE:2,_createHelper:function(){return function(a){return{encrypt:function(b,c,d){return("string"==typeof c?q:g).encrypt(a,b,c,d)},decrypt:function(b,c,d){return("string"==typeof c?q:g).decrypt(a,b,c,d)}}}}()});e.StreamCipher=l.extend({_doFinalize:function(){return this._process(!0)},blockSize:1});var k=f.mode={},t=e.BlockCipherMode=i.extend({createEncryptor:function(a,
|
|
b){return this.Encryptor.create(a,b)},createDecryptor:function(a,b){return this.Decryptor.create(a,b)},init:function(a,b){this._cipher=a;this._iv=b}}),k=k.CBC=function(){function a(a,b,m){var h=this._iv;h?this._iv=r:h=this._prevBlock;for(var e=0;e<m;e++)a[b+e]^=h[e]}var b=t.extend();b.Encryptor=b.extend({processBlock:function(b,d){var m=this._cipher,e=m.blockSize;a.call(this,b,d,e);m.encryptBlock(b,d);this._prevBlock=b.slice(d,d+e)}});b.Decryptor=b.extend({processBlock:function(b,d){var e=this._cipher,
|
|
h=e.blockSize,f=b.slice(d,d+h);e.decryptBlock(b,d);a.call(this,b,d,h);this._prevBlock=f}});return b}(),u=(f.pad={}).Pkcs7={pad:function(a,b){for(var c=4*b,c=c-a.sigBytes%c,d=c<<24|c<<16|c<<8|c,e=[],f=0;f<c;f+=4)e.push(d);c=j.create(e,c);a.concat(c)},unpad:function(a){a.sigBytes-=a.words[a.sigBytes-1>>>2]&255}};e.BlockCipher=l.extend({cfg:l.cfg.extend({mode:k,padding:u}),reset:function(){l.reset.call(this);var a=this.cfg,b=a.iv,a=a.mode;if(this._xformMode==this._ENC_XFORM_MODE)var c=a.createEncryptor;
|
|
else c=a.createDecryptor,this._minBufferSize=1;this._mode=c.call(a,this,b&&b.words)},_doProcessBlock:function(a,b){this._mode.processBlock(a,b)},_doFinalize:function(){var a=this.cfg.padding;if(this._xformMode==this._ENC_XFORM_MODE){a.pad(this._data,this.blockSize);var b=this._process(!0)}else b=this._process(!0),a.unpad(b);return b},blockSize:4});var n=e.CipherParams=i.extend({init:function(a){this.mixIn(a)},toString:function(a){return(a||this.formatter).stringify(this)}}),k=(f.format={}).OpenSSL=
|
|
{stringify:function(a){var b=a.ciphertext,a=a.salt,b=(a?j.create([1398893684,1701076831]).concat(a).concat(b):b).toString(p);return b=b.replace(/(.{64})/g,"$1\n")},parse:function(a){var a=p.parse(a),b=a.words;if(1398893684==b[0]&&1701076831==b[1]){var c=j.create(b.slice(2,4));b.splice(0,4);a.sigBytes-=16}return n.create({ciphertext:a,salt:c})}},g=e.SerializableCipher=i.extend({cfg:i.extend({format:k}),encrypt:function(a,b,c,d){var d=this.cfg.extend(d),e=a.createEncryptor(c,d),b=e.finalize(b),e=e.cfg;
|
|
return n.create({ciphertext:b,key:c,iv:e.iv,algorithm:a,mode:e.mode,padding:e.padding,blockSize:a.blockSize,formatter:d.format})},decrypt:function(a,b,c,d){d=this.cfg.extend(d);b=this._parse(b,d.format);return a.createDecryptor(c,d).finalize(b.ciphertext)},_parse:function(a,b){return"string"==typeof a?b.parse(a):a}}),f=(f.kdf={}).OpenSSL={compute:function(a,b,c,d){d||(d=j.random(8));a=s.create({keySize:b+c}).compute(a,d);c=j.create(a.words.slice(b),4*c);a.sigBytes=4*b;return n.create({key:a,iv:c,
|
|
salt:d})}},q=e.PasswordBasedCipher=g.extend({cfg:g.cfg.extend({kdf:f}),encrypt:function(a,b,c,d){d=this.cfg.extend(d);c=d.kdf.compute(c,a.keySize,a.ivSize);d.iv=c.iv;a=g.encrypt.call(this,a,b,c.key,d);a.mixIn(c);return a},decrypt:function(a,b,c,d){d=this.cfg.extend(d);b=this._parse(b,d.format);c=d.kdf.compute(c,a.keySize,a.ivSize,b.salt);d.iv=c.iv;return g.decrypt.call(this,a,b,c.key,d)}})}();
|