相关代码：
- function utf8to16(str){var out,i,len,c;var char2,char3;out=[];len=str.length;i=0;while(i<len){c=str.charCodeAt(i++);switch(c>>4)
- {case 0:case 1:case 2:case 3:case 4:case 5:case 6:case 7:out[out.length]=str.charAt(i-1);break;case 12:case 13:char2=str.charCodeAt(i++);out[out.length]=String.fromCharCode(((c&0x1F)<<6)|(char2&0x3F));break;case 14:char2=str.charCodeAt(i++);char3=str.charCodeAt(i++);out[out.length]=String.fromCharCode(((c&0x0F)<<12)|((char2&0x3F)<<6)|((char3&0x3F)<<0));break;}}
- return out.join('');}
- var base64DecodeChars=new Array(-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,62,-1,-1,-1,63,52,53,54,55,56,57,58,59,60,61,-1,-1,-1,-1,-1,-1,-1,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,-1,-1,-1,-1,-1,-1,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,-1,-1,-1,-1,-1);
- function base64decode(str)
- {var c1,c2,c3,c4;var i,len,out;len=str.length;i=0;out = "";while(i<len)
- {do
- {c1=base64DecodeChars[str.charCodeAt(i++)&0xff]}while(i<len&&c1==-1);if(c1==-1)
- break;do
- {c2=base64DecodeChars[str.charCodeAt(i++)&0xff]}while(i<len&&c2==-1);if(c2==-1)
- break;out+=String.fromCharCode((c1<<2)|((c2&0x30)>>4));do
- {c3=str.charCodeAt(i++)&0xff;if(c3==61)
- return out;c3=base64DecodeChars[c3]}while(i<len&&c3==-1);if(c3==-1)
- break;out+=String.fromCharCode(((c2&0XF)<<4)|((c3&0x3C)>>2));do
- {c4=str.charCodeAt(i++)&0xff;if(c4==61)
- return out;c4=base64DecodeChars[c4]}while(i<len&&c4==-1);if(c4==-1)
- break;out+=String.fromCharCode(((c3&0x03)<<6)|c4)}
- return out}
- function long2str(v,w){var vl=v.length;var sl=v[vl-1]&0xffffffff;for(var i=0;i<vl;i++)
- {v[i]=String.fromCharCode(v[i]&0xff,v[i]>>>8&0xff,v[i]>>>16&0xff,v[i]>>>24&0xff);}
- if(w){return v.join('').substring(0,sl);}
- else{return v.join('');}}
- function str2long(s,w){var len=s.length;var v=[];for(var i=0;i<len;i+=4)
- {v[i>>2]=s.charCodeAt(i)|s.charCodeAt(i+1)<<8|s.charCodeAt(i+2)<<16|s.charCodeAt(i+3)<<24;}
- if(w){v[v.length]=len;}
- return v;}
- function xxtea_decrypt(str,key){if(str==""){return"";}
- var v=str2long(str,false);var k=str2long(key,false);var n=v.length-1;var z=v[n-1],y=v[0],delta=0x9E3779B9;var mx,e,q=Math.floor(6+52/(n+1)),sum=q*delta&0xffffffff;while(sum!=0){e=sum>>>2&3;for(var p=n;p>0;p--){z=v[p-1];mx=(z>>>5^y<<2)+(y>>>3^z<<4)^(sum^y)+(k[p&3^e]^z);y=v[p]=v[p]-mx&0xffffffff;}
- z=v[n];mx=(z>>>5^y<<2)+(y>>>3^z<<4)^(sum^y)+(k[p&3^e]^z);y=v[0]=v[0]-mx&0xffffffff;sum=sum-delta&0xffffffff;}
- return long2str(v,true);}
- t="Dacv2lRQG17idRE1rqzoDDVqnaUvJYZm5Ou6fhyB7GnT+5HxClCUbZCko4eR51V1zJikNEzepXnZWa62dPIUcEOTBO4=";
- t=utf8to16(xxtea_decrypt(base64decode(t), '123456789abcdef'));
- document.write (t);
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发表于 2013-5-11 14:26:01
楼主
