calculator_worker_sha1.js
3.07 KB
(typeof Crypto=="undefined"||!Crypto.util)&&function(){var e=self.Crypto={},g=e.util={rotl:function(a,b){return a<<b|a>>>32-b},rotr:function(a,b){return a<<32-b|a>>>b},endian:function(a){if(a.c++,d+=8)b[d>>>5]|=a[c]<<24-d%
32;return b},wordsToBytes:function(a){for(var b=[],c=0;c<a.length*32;c+=8)b.push(a[c>>>5]>>>24-c%32&255);return b},bytesToHex:function(a){for(var b=[],c=0;c<a.length;c++)b.push((a[c]>>>4).toString(16)),b.push((a[c]&15).toString(16));return b.join("")},hexToBytes:function(a){for(var b=[],c=0;c<a.length;c+=2)b.push(parseInt(a.substr(c,2),16));return b},bytesToBase64:function(a){if(typeof btoa=="function")return btoa(f.bytesToString(a));for(var b=[],c=0;c<a.length;c+=3)for(var d=a[c]<<16|a[c+1]<<8|a[c+
2],e=0;e<4;e++)c*8+e*6<=a.length*8?b.push("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/".charAt(d>>>6*(3-e)&63)):b.push("=");return b.join("")},base64ToBytes:function(a){if(typeof atob=="function")return f.stringToBytes(atob(a));for(var a=a.replace(/[^A-Z0-9+\/]/ig,""),b=[],c=0,d=0;c<a.length;d=++c%4)d!=0&&b.push(("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/".indexOf(a.charAt(c-1))&Math.pow(2,-2*d+8)-1)<<d*2|"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/".indexOf(a.charAt(c))>>>
6-d*2);return b}},e=e.charenc={};e.UTF8={stringToBytes:function(a){return f.stringToBytes(unescape(encodeURIComponent(a)))},bytesToString:function(a){return decodeURIComponent(escape(f.bytesToString(a)))}};var f=e.Binary={stringToBytes:function(a){for(var b=[],c=0;c<a.length;c++)b.push(a.charCodeAt(c)&255);return b},bytesToString:function(a){for(var b=[],c=0;c<a.length;c++)b.push(String.fromCharCode(a[c]));return b.join("")}}}();
function sha1(m,hash){var w=[];var H0=hash[0],H1=hash[1],H2=hash[2],H3=hash[3],H4=hash[4];for(var i=0;i<m.length;i+=16){var a=H0,b=H1,c=H2,d=H3,e=H4;for(var j=0;j<80;j++){if(j<16)w[j]=m[i+j]|0;else{var n=w[j-3]^w[j-8]^w[j-14]^w[j-16];w[j]=n<<1|n>>>31}var t=(H0<<5|H0>>>27)+H4+(w[j]>>>0)+(j<20?(H1&H2|~H1&H3)+1518500249:j<40?(H1^H2^H3)+1859775393:j<60?(H1&H2|H1&H3|H2&H3)-1894007588:(H1^H2^H3)-899497514);H4=H3;H3=H2;H2=H1<<30|H1>>>2;H1=H0;H0=t}H0=H0+a|0;H1=H1+b|0;H2=H2+c|0;H3=H3+d|0;H4=H4+e|0}return[H0,
H1,H2,H3,H4]}self.hash=[1732584193,-271733879,-1732584194,271733878,-1009589776];
self.addEventListener("message",function(event){var uint8_array,message,block,nBitsTotal,output,nBitsLeft,nBitsTotalH,nBitsTotalL;uint8_array=new Uint8Array(event.data.message);message=Crypto.util.bytesToWords(uint8_array);block=event.data.block;event=null;uint8_array=null;output={"block":block};if(block.end===block.file_size){nBitsTotal=block.file_size*8;nBitsLeft=(block.end-block.start)*8;nBitsTotalH=Math.floor(nBitsTotal/4294967296);nBitsTotalL=nBitsTotal&4294967295;message[nBitsLeft>>>5]|=128<<
24-nBitsLeft%32;message[(nBitsLeft+64>>>9<<4)+14]=nBitsTotalH;message[(nBitsLeft+64>>>9<<4)+15]=nBitsTotalL;self.hash=sha1(message,self.hash);output.result=Crypto.util.bytesToHex(Crypto.util.wordsToBytes(self.hash))}else self.hash=sha1(message,self.hash);message=null;self.postMessage(output)},false);
/* |xGv00|1b17f0a97e2e81eb89bfcb35d52e4a0e */