var hexcase=0;
var b64pad="";
var chrsz=8;
function hex_sha1(s){s=s.toLowerCase();return binb2hex(core_sha1(str2binb(s),s.length*chrsz));}
function b64_sha1(s){return binb2b64(core_sha1(str2binb(s),s.length*chrsz));}
function str_sha1(s){return binb2str(core_sha1(str2binb(s),s.length*chrsz));}
function hex_hmac_sha1(key,data){return binb2hex(core_hmac_sha1(key,data));}
function b64_hmac_sha1(key,data){return binb2b64(core_hmac_sha1(key,data));}
function str_hmac_sha1(key,data){return binb2str(core_hmac_sha1(key,data));}
function core_sha1(x,len)
{
x[len>>5]|=0x80<<(24-len%32);
x[((len+64>>9)<<4)+15]=len;
var w=Array(80);
var a=1732584193;
var b=-271733879;
var c=-1732584194;
var d=271733878;
var e=-1009589776;
for(var i=0;i<x.length;i+=16)
{
var olda=a;
var oldb=b;
var oldc=c;
var oldd=d;
var olde=e;
for(var j=0;j<80;j++)
{
if(j<16)w[j]=x[i+j];
else w[j]=rol(w[j-3]^w[j-8]^w[j-14]^w[j-16],1);
var t=safe_add(safe_add(rol(a,5),sha1_ft(j,b,c,d)),
safe_add(safe_add(e,w[j]),sha1_kt(j)));
e=d;
d=c;
c=rol(b,30);
b=a;
a=t;
}
a=safe_add(a,olda);
b=safe_add(b,oldb);
c=safe_add(c,oldc);
d=safe_add(d,oldd);
e=safe_add(e,olde);
}
return Array(a,b,c,d,e);
}
function sha1_ft(t,b,c,d)
{
if(t<20)return(b&c)|((~b)&d);
if(t<40)return b^c^d;
if(t<60)return(b&c)|(b&d)|(c&d);
return b^c^d;
}
function sha1_kt(t)
{
return(t<20)?1518500249:(t<40)?1859775393:
(t<60)?-1894007588:-899497514;
}
function core_hmac_sha1(key,data)
{
var bkey=str2binb(key);
if(bkey.length>16)bkey=core_sha1(bkey,key.length*chrsz);
var ipad=Array(16),opad=Array(16);
for(var i=0;i<16;i++)
{
ipad[i]=bkey[i]^0x36363636;
opad[i]=bkey[i]^0x5C5C5C5C;
}
var hash=core_sha1(ipad.concat(str2binb(data)),512+data.length*chrsz);
return core_sha1(opad.concat(hash),512+160);
}
function safe_add(x,y)
{
var lsw=(x&0xFFFF)+(y&0xFFFF);
var msw=(x>>16)+(y>>16)+(lsw>>16);
return(msw<<16)|(lsw&0xFFFF);
}
function rol(num,cnt)
{
return(num<<cnt)|(num>>>(32-cnt));
}
function str2binb(str)
{
var bin=Array();
var mask=(1<<chrsz)-1;
for(var i=0;i<str.length*chrsz;i+=chrsz)
bin[i>>5]|=(str.charCodeAt(i/chrsz)&mask)<<(24-i%32);
return bin;
}
function binb2str(bin)
{
var str="";
var mask=(1<<chrsz)-1;
for(var i=0;i<bin.length*32;i+=chrsz)
str+=String.fromCharCode((bin[i>>5]>>>(24-i%32))&mask);
return str;
}
function binb2hex(binarray)
{
var hex_tab=hexcase?"0123456789ABCDEF":"0123456789abcdef";
var str="";
for(var i=0;i<binarray.length*4;i++)
{
str+=hex_tab.charAt((binarray[i>>2]>>((3-i%4)*8+4))&0xF)+
hex_tab.charAt((binarray[i>>2]>>((3-i%4)*8))&0xF);
}
return str;
}
function binb2b64(binarray)
{
var tab="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
var str="";
for(var i=0;i<binarray.length*4;i+=3)
{
var triplet=(((binarray[i>>2]>>8*(3-i%4))&0xFF)<<16)
|(((binarray[i+1>>2]>>8*(3-(i+1)%4))&0xFF)<<8)
|((binarray[i+2>>2]>>8*(3-(i+2)%4))&0xFF);
for(var j=0;j<4;j++)
{
if(i*8+j*6>binarray.length*32)str+=b64pad;
else str+=tab.charAt((triplet>>6*(3-j))&0x3F);
}
}
return str;
}