// 使用示例
// // 加密 base64_encode
// var str = CryptoJS.enc.Utf8.parse(value_str);
// var base64 = CryptoJS.enc.Base64.stringify(str);
// // 解密 base64_decode
// var words = CryptoJS.enc.Base64.parse(value_str);
// var val = words.toString(CryptoJS.enc.Utf8);
// 处理方法
var CryptoJS=CryptoJS||function(h,o){var f={},j=f.lib={},k=j.Base=function(){function a(){}return{extend:function(b){a.prototype=this;var c=new a;b&&c.mixIn(b);c.$super=this;return c},create:function(){var a=this.extend();a.init.apply(a,arguments);return a},init:function(){},mixIn:function(a){for(var c in a)a.hasOwnProperty(c)&&(this[c]=a[c]);a.hasOwnProperty("toString")&&(this.toString=a.toString)},clone:function(){return this.$super.extend(this)}}}(),i=j.WordArray=k.extend({init:function(a,b){a=
this.words=a||[];this.sigBytes=b!=o?b:4*a.length},toString:function(a){return(a||p).stringify(this)},concat:function(a){var b=this.words,c=a.words,d=this.sigBytes,a=a.sigBytes;this.clamp();if(d%4)for(var e=0;e<a;e++)b[d+e>>>2]|=(c[e>>>2]>>>24-8*(e%4)&255)<<24-8*((d+e)%4);else if(65535<c.length)for(e=0;e<a;e+=4)b[d+e>>>2]=c[e>>>2];else b.push.apply(b,c);this.sigBytes+=a;return this},clamp:function(){var a=this.words,b=this.sigBytes;a[b>>>2]&=4294967295<<32-8*(b%4);a.length=h.ceil(b/4)},clone:function(){var a=
k.clone.call(this);a.words=this.words.slice(0);return a},random:function(a){for(var b=[],c=0;c<a;c+=4)b.push(4294967296*h.random()|0);return i.create(b,a)}}),l=f.enc={},p=l.Hex={stringify:function(a){for(var b=a.words,a=a.sigBytes,c=[],d=0;d<a;d++){var e=b[d>>>2]>>>24-8*(d%4)&255;c.push((e>>>4).toString(16));c.push((e&15).toString(16))}return c.join("")},parse:function(a){for(var b=a.length,c=[],d=0;d<b;d+=2)c[d>>>3]|=parseInt(a.substr(d,2),16)<<24-4*(d%8);return i.create(c,b/2)}},n=l.Latin1={stringify:function(a){for(var b=
a.words,a=a.sigBytes,c=[],d=0;d<a;d++)c.push(String.fromCharCode(b[d>>>2]>>>24-8*(d%4)&255));return c.join("")},parse:function(a){for(var b=a.length,c=[],d=0;d<b;d++)c[d>>>2]|=(a.charCodeAt(d)&255)<<24-8*(d%4);return i.create(c,b)}},q=l.Utf8={stringify:function(a){try{return decodeURIComponent(escape(n.stringify(a)))}catch(b){throw Error("Malformed UTF-8 data");}},parse:function(a){return n.parse(unescape(encodeURIComponent(a)))}},m=j.BufferedBlockAlgorithm=k.extend({reset:function(){this._data=i.create();
this._nDataBytes=0},_append:function(a){"string"==typeof a&&(a=q.parse(a));this._data.concat(a);this._nDataBytes+=a.sigBytes},_process:function(a){var b=this._data,c=b.words,d=b.sigBytes,e=this.blockSize,f=d/(4*e),f=a?h.ceil(f):h.max((f|0)-this._minBufferSize,0),a=f*e,d=h.min(4*a,d);if(a){for(var g=0;g<a;g+=e)this._doProcessBlock(c,g);g=c.splice(0,a);b.sigBytes-=d}return i.create(g,d)},clone:function(){var a=k.clone.call(this);a._data=this._data.clone();return a},_minBufferSize:0});j.Hasher=m.extend({init:function(){this.reset()},
reset:function(){m.reset.call(this);this._doReset()},update:function(a){this._append(a);this._process();return this},finalize:function(a){a&&this._append(a);this._doFinalize();return this._hash},clone:function(){var a=m.clone.call(this);a._hash=this._hash.clone();return a},blockSize:16,_createHelper:function(a){return function(b,c){return a.create(c).finalize(b)}},_createHmacHelper:function(a){return function(b,c){return r.HMAC.create(a,c).finalize(b)}}});var r=f.algo={};return f}(Math);

(function(){var h=CryptoJS,i=h.lib.WordArray;h.enc.Base64={stringify:function(b){var e=b.words,f=b.sigBytes,c=this._map;b.clamp();for(var b=[],a=0;a<f;a+=3)for(var d=(e[a>>>2]>>>24-8*(a%4)&255)<<16|(e[a+1>>>2]>>>24-8*((a+1)%4)&255)<<8|e[a+2>>>2]>>>24-8*((a+2)%4)&255,g=0;4>g&&a+0.75*g<f;g++)b.push(c.charAt(d>>>6*(3-g)&63));if(e=c.charAt(64))for(;b.length%4;)b.push(e);return b.join("")},parse:function(b){var b=b.replace(/\s/g,""),e=b.length,f=this._map,c=f.charAt(64);c&&(c=b.indexOf(c),-1!=c&&(e=c));
for(var c=[],a=0,d=0;d<e;d++)if(d%4){var g=f.indexOf(b.charAt(d-1))<<2*(d%4),h=f.indexOf(b.charAt(d))>>>6-2*(d%4);c[a>>>2]|=(g|h)<<24-8*(a%4);a++}return i.create(c,a)},_map:"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="}})();