jsrc4加密解密
js rc4加密
使⽤ CryptoJS 源码如下
/*
CryptoJS v3.1.2
(c) 2009-2013 by Jeff Mott. All rights reserved.
*/
var CryptoJS=CryptoJS||function(s,l){var e={},n=e.lib={},p=function(){},b=n.Base={extend:function(c){p.prototype=this;var a=new p;c&&a.mixIn(c);a.hasOwn Property("init")||(a.init=function(){a.$super.init.apply(this,arguments)});a.init.prototype=a;a.$super=this;return a},create:function(){var c
=d();c.init.a pply(c,arguments);return c},init:function(){},mixIn:function(c){for(var a in c)c.hasOwnProperty(a)&&(this[a]=c[a]);c.hasOwnProperty("toString")&&(Strin String)},clone:function(){return this.d(this)}},
d=n.d({init:function(c,a){c=this.words=c||[];this.sigBytes=a!=l?a:4*c.length},toString:function(c){return(c||q).stringify(this)},concat:function (c){var a=this.words,m=c.words,f=this.sigBytes;c=c.sigBytes;this.clamp();if(f%4)for(var r=0;r<c;r++)a[f+r>>>2]|=(m[r>>>2]>>>24-8*(r%4)&255)<<24-8*((f+r) %4);else if(65535<m.length)for(r=0;r<c;r+=4)a[f+r>>>2]=m[r>>>2];else a.push.apply(a,m);this.sigBytes+=c;return this},clamp:function(){var c=this.words,a=t his.sigBytes;c[a>>>2]&=4294967295<<
32-8*(a%4);c.il(a/4)},clone:function(){var c=b.clone.call(this);c.words=this.words.slice(0);return c},random:function(c){for(var a=[],m=0;m<c;m+= 4)a.push(4294967296*s.random()|0);return new d.init(a,c)}}),={},q=t.Hex={stringify:function(c){var a=c.words;c=c.sigBytes;for(var m=[],f=0;f<c;f++){ var r=a[f>>>2]>>>24-8*(f%4)&255;m.push((r>>>4).toString(16));m.push((r&15).toString(16))}return m.join("")},parse:function(c){for(var a=c.length,m=[],f=0; f<a;f+=2)m[f>>>3]|=parseInt(c.substr(f,
2),16)<<24-4*(f%8);return new d.init(m,a/2)}},a=t.Latin1={stringify:function(c){var a=c.words;c=c.sigBytes;for(var m=[],f=0;f<c;f++)m.push(String.fromCharC ode(a[f>>>2]>>>24-8*(f%4)&255));return m.join("")},parse:function(c){for(var a=c.length,m=[],f=0;f<a;f++)m[f>>>2]|=(c.charCodeAt(f)&255)<<24-8*(f%4);ret urn new d.init(m,a)}},v=t.Utf8={stringify:function(c){try{return decodeURIComponent(escape(a.stringify(c)))}catch(u){throw Error("Malformed UTF-8 data");} },parse:function(c){return a.parse(unescape(encodeURIComponent(c)))}},
u=n.d({reset:function(){this._data=new d.init;this._nDataBytes=0},_append:function(a){"string"==typeof a&&(a=v.parse(a));t his._at(a);this._nDataBytes+=a.sigBytes},_process:function(a){var u=this._data,m=u.words,f=u.sigBytes,r=this.blockSize,e=f/(4*r),e=il(e):s. max((e|0)-this._minBufferSize,0);a=e*r;f=s.min(4*a,f);if(a){for(var b=0;b<a;b+=r)this._doProcessBlock(m,b);b=m.splice(0,a);u.sigBytes-=f}return new d.init(b ,f)},clone:function(){var a=b.clone.call(this);
a._data=this._data.clone();return a},_minBufferSize:0});n.d({cfg:
b.extend(),init:function(a){this.cfg=d(a);set()},reset:funct ion(){u.reset.call(this);this.
_doReset()},update:function(a){this._append(a);this._process();return this},finalize:function(a){a&&this._append(a);return this._d oFinalize()},blockSize:16,_createHelper:function(a){return function(u,m){return(new a.init(m)).finalize(u)}},_createHmacHelper:function(a){return function(u ,m){return(new w.HMAC.init(a,
m)).finalize(u)}}});var w=e.algo={};return e}(Math);
(function(){var s=CryptoJS,l=s.lib.Base64={stringify:function(e){var n=e.words,l=e.sigBytes,b=this._map;e.clamp();e=[];for(var d=0;d<l;d+= 3)for(var t=(n[d>>>2]>>>24-8*(d%4)&255)<<16|(n[d+1>>>2]>>>24-8*((d+1)%4)&255)<<8|n[d+2>>>2]>>>24-8*((d+2)%4)&255,q=0;4>q&&d+0.75*q<l;q++)e .push(b.charAt(t>>>6*(3-q)&63));if(n=b.charAt(64))for(;e.length%4;)e.push(n);return e.join("")},parse:function(e){var n=e.length,p=this._map,b=p.charAt(64 );b&&(b=e.indexOf(b),-1!=b&&(n=b));for(var b=[],d=0,t=0;t<
n;t++)if(t%4){var q=p.indexOf(e.charAt(t-1))<<2*(t%4),a=p.indexOf(e.charAt(t))>>>6-2*(t%4);b[d>>>2]|=(q|a)<<24-8*(d%4);d++}ate(b,d)},_map:" ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="}})();
(function(s){function l(a,b,c,e,m,f,r){a=a+(b&c|~b&e)+m+r;return(a<<f|a>>>32-f)+b}function e(a,b,c,e,
m,f,r){a=a+(b&e|c&~e)+m+r;return(a<<f|a>>>32-f)+b}f unction n(a,b,c,e,m,f,r){a=a+(b^c^e)+m+r;return(a<<f|a>>>32-f)+b}function p(a,b,c,e,m,f,r){a=a+(c^(b|~e))+m+r;return(a<<f|a>>>32-f)+b}for(var b=CryptoJ S,d=b.lib,t=d.WordArray,q=d.Hasher,d=b.algo,a=[],v=0;64>v;v++)a[v]=4294967296*s.abs(s.sin(v+1))|0;d=d.d({_doReset:function(){this._hash =new t.init([1732584193,4023233417,2562383102,271733878])},
_doProcessBlock:function(b,d){for(var c=0;16>c;c++){var q=d+c,m=b[q];b[q]=(m<<8|m>>>24)&16711935|(m<<24|m>>>8)&4278255360}var c=this._hash.w ords,q=b[d+0],m=b[d+1],f=b[d+2],r=b[d+3],x=b[d+4],t=b[d+5],s=b[d+6],v=b[d+7],y=b[d+8],z=b[d+9],A=b[d+10],B=b[d+11],C=b[d+12],D=b[d+13],E=b[d+14],F =b[d+15],g=c[0],h=c[1],j=c[2],k=c[3],g=l(g,h,j,k,q,7,a[0]),k=l(k,g,h,j,m,12,a[1]),j=l(j,k,g,h,f,17,a[2]),h=l(h,j,k,g,r,22,a[3]),g=l(g,h,j,k,x,7,a[4]),k=l(k,g,h,j,t,12,a[5]) ,j=l(j,k,g,h,s,17,a[6]),h=l(h,j,k,g,v,22,a[7]),
g=l(g,h,j,k,y,7,a[8]),k=l(k,g,h,j,z,12,a[9]),j=l(j,k,g,h,A,17,a[10]),h=l(h,j,k,g,B,22,a[11]),g=l(g,h,j,k,C,7,a[12]),k=l(k,g,h,j,D,12,a[13]),j=l(j,k,g,h,E,17,a[14]),h=l(h,j, k,g,F,22,a[15]),g=e(g,h,j,k,m,5,a[16]),k=e(k,g,h,j,s,9,a[17]),j=e(j,k,g,h,B,14,a[18]),h=e(h,j,k,g,q,20,a[19]),g=e(g,h,j,k,t,5,a[20]),k=e(k,g,h,j,A,9,a[21]),j=e(j,k,g, h,F,14,a[22]),h=e(h,j,k,g,x,20,a[23]),g=e(g,h,j,k,z,5,a[24]),k=e(k,g,h,j,E,9,a[25]),j=e(j,k,g,h,r,14,a[26]),h=e(h,j,k,g,y,20,a[27]),g=e(g,h,j,k,D,5,a[28]),k=e(k,g, h,j,f,9,a[29]),j=e(j,k,g,h,v,14,a[30]),h=e(h,j,k,g,C,20,a[31]),g=n(g,h,j,k,t,4,a[32]),k=n(k,g,h,j,y,11,a[33]),j=n(j,k,g,h,B,16,a[34]),h=n(h,j,k,g,E,23,a[35]),g=n(g,h,j ,k,m,4,a[36]),k=n(k,g,h,j,x,11,a[37]),j=n(j,k,g,h,v,16,a[38]),h=n(h,j,k,g,A,23,a[39]),g=n(g,h,j,k,D,4,a[40]),k=n(k,g,h,j,q,11,a[41]),j=n(j,k,g,h,r,16,a[42]),h=n(h,j,
k,g,s,23,a[43]),g=n(g,h,j,k,z,4,a[44]),k=n(k,g,h,j,C,11,a[45]),j=n(j,k,g,h,F,16,a[46]),h=n(h,j,k,g,f,23,a[47]),g=p(g,h,j,k,q,6,a[48]),k=p(k,g,h,j,v,10,a[49]),j=p(j,k, g,h,
E,15,a[50]),h=p(h,j,k,g,t,21,a[51]),g=p(g,h,j,k,C,6,a[52]),k=p(k,g,h,j,r,10,a[53]),j=p(j,k,g,h,A,15,a[54]),h=p(h,j,k,g,m,21,a[55]),g=p(g,h,j,k,y,6,a[56]),k=p(k,g,h, j,F,10,a[57]),j=p(j,k,g,h,s,15,a[58]),h=p(h,j,k,g,D,21,a[59]),g=p(g,h,j,k,x,6,a[60]),k=p(k,g,h,j,B,10,a[61]),j=p(j,k,g,h,f,15,a[62]),h=p(h,j,k,g,z,21,a[63]);c[0]=c[0] +g|0;c[1]=c[1]+h|0;c[2]=c[2]+j|0;c[3]=c[3]+k|0},_doFinalize:function(){var a=this._data,b=a.words,c=8*this._nDataBytes,d=8*a.sigBytes;b[d>>>5]|=128<<24-d%32;var m=s.floor(c/
4294967296);b[(d+64>>>9<<4)+15]=(m<<8|m>>>24)&16711935|(m<<24|m>>>8)&4278255360;b[(d+64>>>9<<4)+14]=(c<<8|c>>>24)&16711935|(c<<24|c >>>8)&4278255360;a.sigBytes=4*(b.length+1);this._process();a=this._hash;b=a.words;for(c=0;4>c;c++)d=b[c],b[c]=(d<<8|d>>>24)&16711935|(d<<24|d>>> 8)&4278255360;return a},clone:function(){var a=q.clone.call(this);a._hash=this._hash.clone();return a}});b.MD5=q._createHelper(d);b.HmacMD5=q._creat
eHmacHelper(d)})(Math);
(function(){var s=CryptoJS,l=s.lib,e=l.Base,n=l.WordArray,l=s.algo,p=l.d({d({keySize:4,hasher:l.MD5,iterations:1}),init:function(b ){this.cfg=d(b)},compute:function(b,d){for(var e=this.cfg,q=ate(),ate(),l=a.words,p=e.keySize,e=e.iterations;l.length<p;){s& &q.update(s);var s=q.update(b).finalize(d);q.reset();for(var c=1;c<e;c++)s=q.finalize(s),q.reset();a.concat(s)}a.sigBytes=4*p;return a}});s.EvpKDF=function( b,d,e){ate(e)pute(b,
d)}})();
CryptoJS.lib.Cipher||function(s){var l=CryptoJS,e=l.lib,n=e.Base,p=e.WordArray,b=e.BufferedBlockAlgorithm,Base64,t=l.algo.EvpKDF,q=e.Cipher=b .extend({d(),createEncryptor:function(a,f){ate(this._ENC_XFORM_MODE,a,f)},createDecryptor:function(a,f){ate(this. _DEC_XFORM_MODE,a,f)},init:function(a,f,c){this.cfg=d(c);this._xformMode=a;this._key=set()},reset:function(){b.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:funct ion(a){return{encrypt:function(f,b,d){return("string"==typeof b?G:c).encrypt(a,f,b,d)},decrypt:function(f,b,d){return("string"==typeof b?G:c).decrypt(a,f,b,d)}}} });e.d({_doFinalize:function(){return this._process(!0)},blockSize:1});var de={},v=function(a,f,b){var c=this._iv;c?this._iv=s:c=thi s._prevBlock;for(var d=0;d<b;d++)a[f+d]^=
c[d]},u=(e.d({createEncryptor:function(a,f){return ate(a,f)},createDecryptor:function(a,f){return eate(a,f)},init:function(a,f){this._cipher=a;this._iv=f}})).extend();u.d({processBlock:function(a,f){var b=this._cipher,c=b.blockSize;v.call(this ,a,f,c);b.encryptBlock(a,f);this._prevBlock=a.slice(f,f+c)}});u.d({processBlock:function(a,f){var b=this._cipher,c=b.blockSize,d=a.slice(f,f+c) ;b.decryptBlock(a,f);v.call(this,
a,f,c);this._prevBlock=d}});a=a.CBC=u;u=(l.pad={}).Pkcs7={pad:function(a,f){for(var b=4*f,b=b-a.sigBytes%b,c=b<<24|b<<16|b<<8|b,d=[],e=0;e<b;e+=4)d.p ush(c);ate(d,b);a.concat(b)},unp
ad:function(a){a.sigBytes-=a.words[a.sigBytes-1>>>2]&255}};e.d({cfg:d({mode:a,pa dding:u}),reset:function(){q.reset.call(this);var a=this.cfg,b=a.iv,de;if(this._xformMode==this._ENC_XFORM_MODE)var ateEncryptor;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._E NC_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 w=e.CipherPa d({init:function(a){this.mixIn(a)},toString:function(a){return(a||this.formatter).stringify(this)}}),a=(l.format={}).OpenSSL={stringify:function(a){va r b=a.ciphertext;a=a.salt;return(ate([1398893684,
1701076831]).concat(a).concat(b):b).toString(d)},parse:function(a){a=d.parse(a);var b=a.words;if(1398893684==b[0]&&1701076831==b[1]){var ate (b.slice(2,4));b.splice(0,4);a.sigBytes-=16}ate({ciphertext:a,salt:c})}},c=e.d({d({format:a}),encrypt:function
(a,b,c,d){d=d(d);var ateEncryptor(c,d);b=e.finalize(b);e=e.cfg;ate({ciphertext:b,key:c,iv:e.iv,algorithm:a,de,padd ing:e.padding,blockSize:a.blockSize,formatter:d.format})},
js argumentsdecrypt:function(a,b,c,d){d=d(d);b=this._parse(b,d.format);ateDecryptor(c,d).finalize(b.ciphertext)},_parse:function(a,b){return"stri ng"==typeof a?b.parse(a,this):a}}),l=(l.kdf={}).OpenSSL={execute:function(a,b,c,d){d||(d=p.random(8));ate({keySize:b+c})pute(a,d);ate( a.words.slice(b),4*c);a.sigBytes=4*b;ate({key:a,iv:c,salt:d})}},G=e.d({cfg:d({kdf:l}),encrypt:function(a, b,d,e){e=d(e);d=ute(d,
a.keySize,a.ivSize);e.iv=d.iv;pt.call(this,a,b,d.key,e);a.mixIn(d);return a},decrypt:function(a,b,d,e){e=d(e);b=this._parse(b,e.format);d =ute(d,a.keySize,a.ivSize,
b.salt);e.iv=d.iv;return
c.decrypt.call(this,a,b,
d.key,e)}})}();
(function(){function s(){for(var b=this._S,d=this._i,e=this._j,q=0,a=0;4>a;a++){var d=(d+1)%256,e=(e+b[d])%256,l=b[d];b[d]=b[e];b[e]=l;q|=b[(b[d]+b[e])%256 ]<<24-8*a}this._i=d;this._j=e;return q}var l=CryptoJS,e=l.lib.StreamCipher,n=l.algo,p=n.d({_doReset:function(){for(var b=this._key,d=b.words,b =b.sigBytes,e=this._S=[],l=0;256>l;l++)e[l]=l;for(var a=l=0;256>l;l++){var n=l%b,a=(a+e[l]+(d[n>>>2]>>>24-8*(n%4)&255))%256,n=e[l];e[l]=e[a];e[a]=n}this._i =this._j=0},_doProcessBlock:function(b,
d){b[d]^=s.call(this)},keySize:8,ivSize:0});l.RC4=e._createHelper(p);n=n.d({cfg:d({drop:192}),_doReset:function(){p._doReset. call(this);for(var b=this.cfg.drop;0<b;b--)s.call(this)}});l.RC4Drop=e._createHelper(n)})();
加密
pt('123','1234').toString()
解密
CryptoJS.RC4.decrypt('U2FsdGVkX1/wWAS6UzqR/Hn7WQ==','1234').Utf8)

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