prototype functional

jsSHA/src/sha512.js

@@ -0,0 +1,12 @@
+/* A JavaScript implementation of the SHA family of hashes, as defined in FIPS
+ * PUB 180-2 as well as the corresponding HMAC implementation as defined in
+ * FIPS PUB 198a
+ *
+ * Version 1.3 Copyright Brian Turek 2008-2010
+ * Distributed under the BSD License
+ * See http://jssha.sourceforge.net/ for more information
+ *
+ * Several functions taken from Paul Johnson
+ */
+(function(){var charSize=8,b64pad="",hexCase=0,Int_64=function(a,b){this.highOrder=a;this.lowOrder=b},str2binb=function(a){var b=[],mask=(1<<charSize)-1,length=a.length*charSize,i;for(i=0;i<length;i+=charSize){b[i>>5]|=(a.charCodeAt(i/charSize)&mask)<<(32-charSize-(i%32))}return b},hex2binb=function(a){var b=[],length=a.length,i,num;for(i=0;i<length;i+=2){num=parseInt(a.substr(i,2),16);if(!isNaN(num)){b[i>>3]|=num<<(24-(4*(i%8)))}else{return"INVALID HEX STRING"}}return b},binb2hex=function(a){var b=(hexCase)?"0123456789ABCDEF":"0123456789abcdef",str="",length=a.length*4,i,srcByte;for(i=0;i<length;i+=1){srcByte=a[i>>2]>>((3-(i%4))*8);str+=b.charAt((srcByte>>4)&0xF)+b.charAt(srcByte&0xF)}return str},binb2b64=function(a){var b="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"+"0123456789+/",str="",length=a.length*4,i,j,triplet;for(i=0;i<length;i+=3){triplet=(((a[i>>2]>>8*(3-i%4))&0xFF)<<16)|(((a[i+1>>2]>>8*(3-(i+1)%4))&0xFF)<<8)|((a[i+2>>2]>>8*(3-(i+2)%4))&0xFF);for(j=0;j<4;j+=1){if(i*8+j*6<=a.length*32){str+=b.charAt((triplet>>6*(3-j))&0x3F)}else{str+=b64pad}}}return str},rotr=function(x,n){if(n<=32){return new Int_64((x.highOrder>>>n)|(x.lowOrder<<(32-n)),(x.lowOrder>>>n)|(x.highOrder<<(32-n)))}else{return new Int_64((x.lowOrder>>>n)|(x.highOrder<<(32-n)),(x.highOrder>>>n)|(x.lowOrder<<(32-n)))}},shr=function(x,n){if(n<=32){return new Int_64(x.highOrder>>>n,x.lowOrder>>>n|(x.highOrder<<(32-n)))}else{return new Int_64(0,x.highOrder<<(32-n))}},ch=function(x,y,z){return new Int_64((x.highOrder&y.highOrder)^(~x.highOrder&z.highOrder),(x.lowOrder&y.lowOrder)^(~x.lowOrder&z.lowOrder))},maj=function(x,y,z){return new Int_64((x.highOrder&y.highOrder)^(x.highOrder&z.highOrder)^(y.highOrder&z.highOrder),(x.lowOrder&y.lowOrder)^(x.lowOrder&z.lowOrder)^(y.lowOrder&z.lowOrder))},sigma0=function(x){var a=rotr(x,28),rotr34=rotr(x,34),rotr39=rotr(x,39);return new Int_64(a.highOrder^rotr34.highOrder^rotr39.highOrder,a.lowOrder^rotr34.lowOrder^rotr39.lowOrder)},sigma1=function(x){var a=rotr(x,14),rotr18=rotr(x,18),rotr41=rotr(x,41);return new Int_64(a.highOrder^rotr18.highOrder^rotr41.highOrder,a.lowOrder^rotr18.lowOrder^rotr41.lowOrder)},gamma0=function(x){var a=rotr(x,1),rotr8=rotr(x,8),shr7=shr(x,7);return new Int_64(a.highOrder^rotr8.highOrder^shr7.highOrder,a.lowOrder^rotr8.lowOrder^shr7.lowOrder)},gamma1=function(x){var a=rotr(x,19),rotr61=rotr(x,61),shr6=shr(x,6);return new Int_64(a.highOrder^rotr61.highOrder^shr6.highOrder,a.lowOrder^rotr61.lowOrder^shr6.lowOrder)},safeAdd_2=function(x,y){var a,msw,lowOrder,highOrder;a=(x.lowOrder&0xFFFF)+(y.lowOrder&0xFFFF);msw=(x.lowOrder>>>16)+(y.lowOrder>>>16)+(a>>>16);lowOrder=((msw&0xFFFF)<<16)|(a&0xFFFF);a=(x.highOrder&0xFFFF)+(y.highOrder&0xFFFF)+(msw>>>16);msw=(x.highOrder>>>16)+(y.highOrder>>>16)+(a>>>16);highOrder=((msw&0xFFFF)<<16)|(a&0xFFFF);return new Int_64(highOrder,lowOrder)},safeAdd_4=function(a,b,c,d){var e,msw,lowOrder,highOrder;e=(a.lowOrder&0xFFFF)+(b.lowOrder&0xFFFF)+(c.lowOrder&0xFFFF)+(d.lowOrder&0xFFFF);msw=(a.lowOrder>>>16)+(b.lowOrder>>>16)+(c.lowOrder>>>16)+(d.lowOrder>>>16)+(e>>>16);lowOrder=((msw&0xFFFF)<<16)|(e&0xFFFF);e=(a.highOrder&0xFFFF)+(b.highOrder&0xFFFF)+(c.highOrder&0xFFFF)+(d.highOrder&0xFFFF)+(msw>>>16);msw=(a.highOrder>>>16)+(b.highOrder>>>16)+(c.highOrder>>>16)+(d.highOrder>>>16)+(e>>>16);highOrder=((msw&0xFFFF)<<16)|(e&0xFFFF);return new Int_64(highOrder,lowOrder)},safeAdd_5=function(a,b,c,d,e){var f,msw,lowOrder,highOrder;f=(a.lowOrder&0xFFFF)+(b.lowOrder&0xFFFF)+(c.lowOrder&0xFFFF)+(d.lowOrder&0xFFFF)+(e.lowOrder&0xFFFF);msw=(a.lowOrder>>>16)+(b.lowOrder>>>16)+(c.lowOrder>>>16)+(d.lowOrder>>>16)+(e.lowOrder>>>16)+(f>>>16);lowOrder=((msw&0xFFFF)<<16)|(f&0xFFFF);f=(a.highOrder&0xFFFF)+(b.highOrder&0xFFFF)+(c.highOrder&0xFFFF)+(d.highOrder&0xFFFF)+(e.highOrder&0xFFFF)+(msw>>>16);msw=(a.highOrder>>>16)+(b.highOrder>>>16)+(c.highOrder>>>16)+(d.highOrder>>>16)+(e.highOrder>>>16)+(f>>>16);highOrder=((msw&0xFFFF)<<16)|(f&0xFFFF);return new Int_64(highOrder,lowOrder)},coreSHA2=function(j,k,l){var a,b,c,d,e,f,g,h,T1,T2,H,lengthPosition,i,t,K,W=[],appendedMessageLength;if(l==="SHA-384"||l==="SHA-512"){lengthPosition=(((k+128)>>10)<<5)+31;K=[new Int_64(0x428a2f98,0xd728ae22),new Int_64(0x71374491,0x23ef65cd),new Int_64(0xb5c0fbcf,0xec4d3b2f),new Int_64(0xe9b5dba5,0x8189dbbc),new Int_64(0x3956c25b,0xf348b538),new Int_64(0x59f111f1,0xb605d019),new Int_64(0x923f82a4,0xaf194f9b),new Int_64(0xab1c5ed5,0xda6d8118),new Int_64(0xd807aa98,0xa3030242),new Int_64(0x12835b01,0x45706fbe),new Int_64(0x243185be,0x4ee4b28c),new Int_64(0x550c7dc3,0xd5ffb4e2),new Int_64(0x72be5d74,0xf27b896f),new Int_64(0x80deb1fe,0x3b1696b1),new Int_64(0x9bdc06a7,0x25c71235),new Int_64(0xc19bf174,0xcf692694),new Int_64(0xe49b69c1,0x9ef14ad2),new Int_64(0xefbe4786,0x384f25e3),new Int_64(0x0fc19dc6,0x8b8cd5b5),new Int_64(0x240ca1cc,0x77ac9c65),new Int_64(0x2de92c6f,0x592b0275),new Int_64(0x4a7484aa,0x6ea6e483),new Int_64(0x5cb0a9dc,0xbd41fbd4),new Int_64(0x76f988da,0x831153b5),nLine truncated
+