2010-10-08 04:02:59 +02:00
"use strict" ; var sjcl = { cipher : { } , hash : { } , mode : { } , misc : { } , codec : { } , exception : { corrupt : function ( a ) { this . toString = function ( ) { return "CORRUPT: " + this . message } ; this . message = a } , invalid : function ( a ) { this . toString = function ( ) { return "INVALID: " + this . message } ; this . message = a } , bug : function ( a ) { this . toString = function ( ) { return "BUG: " + this . message } ; this . message = a } , notReady : function ( a ) { this . toString = function ( ) { return "GENERATOR NOT READY: " + this . message } ; this . message = a } } } ;
sjcl . cipher . aes = function ( a ) { this . l [ 0 ] [ 0 ] [ 0 ] || this . F ( ) ; var b , c , d , e , f = this . l [ 0 ] [ 4 ] , g = this . l [ 1 ] ; b = a . length ; var h = 1 ; if ( b !== 4 && b !== 6 && b !== 8 ) throw new sjcl . exception . invalid ( "invalid aes key size" ) ; this . c = [ d = a . slice ( 0 ) , e = [ ] ] ; for ( a = b ; a < 4 * b + 28 ; a ++ ) { c = d [ a - 1 ] ; if ( a % b === 0 || b === 8 && a % b === 4 ) { c = f [ c >>> 24 ] << 24 ^ f [ c >> 16 & 255 ] << 16 ^ f [ c >> 8 & 255 ] << 8 ^ f [ c & 255 ] ; if ( a % b === 0 ) { c = c << 8 ^ c >>> 24 ^ h << 24 ; h = h << 1 ^ ( h >> 7 ) * 283 } } d [ a ] = d [ a - b ] ^ c } for ( b = 0 ; a ; b ++ , a -- ) { c = d [ b & 3 ? a : a - 4 ] ; e [ b ] = a <= 4 || b < 4 ? c : g [ 0 ] [ f [ c >>> 24 ] ] ^ g [ 1 ] [ f [ c >> 16 & 255 ] ] ^ g [ 2 ] [ f [ c >> 8 & 255 ] ] ^
2010-05-27 00:34:42 +02:00
g [ 3 ] [ f [ c & 255 ] ] } } ;
2010-10-08 04:02:59 +02:00
sjcl . cipher . aes . prototype = { encrypt : function ( a ) { return this . O ( a , 0 ) } , decrypt : function ( a ) { return this . O ( a , 1 ) } , l : [ [ [ ] , [ ] , [ ] , [ ] , [ ] ] , [ [ ] , [ ] , [ ] , [ ] , [ ] ] ] , F : function ( ) { var a = this . l [ 0 ] , b = this . l [ 1 ] , c = a [ 4 ] , d = b [ 4 ] , e , f , g , h = [ ] , j = [ ] , n , l , m , o ; for ( e = 0 ; e < 0x100 ; e ++ ) j [ ( h [ e ] = e << 1 ^ ( e >> 7 ) * 283 ) ^ e ] = e ; for ( f = g = 0 ; ! c [ f ] ; f ^= n || 1 , g = j [ g ] || 1 ) { m = g ^ g << 1 ^ g << 2 ^ g << 3 ^ g << 4 ; m = m >> 8 ^ m & 255 ^ 99 ; c [ f ] = m ; d [ m ] = f ; l = h [ e = h [ n = h [ f ] ] ] ; o = l * 0x1010101 ^ e * 0x10001 ^ n * 0x101 ^ f * 0x1010100 ; l = h [ m ] * 0x101 ^ m * 0x1010100 ; for ( e = 0 ; e < 4 ; e ++ ) { a [ e ] [ f ] = l = l << 24 ^ l >>> 8 ; b [ e ] [ m ] = o = o << 24 ^ o >>> 8 } } for ( e =
0 ; e < 5 ; e ++ ) { a [ e ] = a [ e ] . slice ( 0 ) ; b [ e ] = b [ e ] . slice ( 0 ) } } , O : function ( a , b ) { if ( a . length !== 4 ) throw new sjcl . exception . invalid ( "invalid aes block size" ) ; var c = this . c [ b ] , d = a [ 0 ] ^ c [ 0 ] , e = a [ b ? 3 : 1 ] ^ c [ 1 ] , f = a [ 2 ] ^ c [ 2 ] ; a = a [ b ? 1 : 3 ] ^ c [ 3 ] ; var g , h , j , n = c . length / 4 - 2 , l , m = 4 , o = [ 0 , 0 , 0 , 0 ] ; g = this . l [ b ] ; var q = g [ 0 ] , r = g [ 1 ] , s = g [ 2 ] , t = g [ 3 ] , u = g [ 4 ] ; for ( l = 0 ; l < n ; l ++ ) { g = q [ d >>> 24 ] ^ r [ e >> 16 & 255 ] ^ s [ f >> 8 & 255 ] ^ t [ a & 255 ] ^ c [ m ] ; h = q [ e >>> 24 ] ^ r [ f >> 16 & 255 ] ^ s [ a >> 8 & 255 ] ^ t [ d & 255 ] ^ c [ m + 1 ] ; j = q [ f >>> 24 ] ^ r [ a >> 16 & 255 ] ^ s [ d >> 8 & 255 ] ^ t [ e & 255 ] ^ c [ m + 2 ] ; a = q [ a >>> 24 ] ^ r [ d >> 16 &
255 ] ^ s [ e >> 8 & 255 ] ^ t [ f & 255 ] ^ c [ m + 3 ] ; m += 4 ; d = g ; e = h ; f = j } for ( l = 0 ; l < 4 ; l ++ ) { o [ b ? 3 & - l : l ] = u [ d >>> 24 ] << 24 ^ u [ e >> 16 & 255 ] << 16 ^ u [ f >> 8 & 255 ] << 8 ^ u [ a & 255 ] ^ c [ m ++ ] ; g = d ; d = e ; e = f ; f = a ; a = g } return o } } ;
2010-10-08 04:42:19 +02:00
sjcl . bitArray = { bitSlice : function ( a , b , c ) { a = sjcl . bitArray . $ ( a . slice ( b / 32 ) , 32 - ( b & 31 ) ) . slice ( 1 ) ; return c === undefined ? a : sjcl . bitArray . clamp ( a , c - b ) } , extract : function ( a , b , c ) { var d = - b - c & 31 ; return ( ( b + c - 1 ^ b ) & - 32 ? a [ b / 32 | 0 ] << 32 - d ^ a [ b / 32 + 1 | 0 ] >>> d : a [ b / 32 | 0 ] >>> d ) & ( 1 << c ) - 1 } , concat : function ( a , b ) { if ( a . length === 0 || b . length === 0 ) return a . concat ( b ) ; var c = a [ a . length - 1 ] , d = sjcl . bitArray . getPartial ( c ) ; return d === 32 ? a . concat ( b ) : sjcl . bitArray . $ ( b , d , c | 0 , a . slice ( 0 , a . length - 1 ) ) } , bitLength : function ( a ) { var b = a . length ; if ( b === 0 ) return 0 ;
2010-10-08 04:02:59 +02:00
return ( b - 1 ) * 32 + sjcl . bitArray . getPartial ( a [ b - 1 ] ) } , clamp : function ( a , b ) { if ( a . length * 32 < b ) return a ; a = a . slice ( 0 , Math . ceil ( b / 32 ) ) ; var c = a . length ; b &= 31 ; if ( c > 0 && b ) a [ c - 1 ] = sjcl . bitArray . partial ( b , a [ c - 1 ] & 2147483648 >> b - 1 , 1 ) ; return a } , partial : function ( a , b , c ) { if ( a === 32 ) return b ; return ( c ? b | 0 : b << 32 - a ) + a * 0x10000000000 } , getPartial : function ( a ) { return Math . round ( a / 0x10000000000 ) || 32 } , equal : function ( a , b ) { if ( sjcl . bitArray . bitLength ( a ) !== sjcl . bitArray . bitLength ( b ) ) return false ; var c = 0 , d ; for ( d = 0 ; d < a . length ; d ++ ) c |= a [ d ] ^ b [ d ] ;
2010-10-08 04:42:19 +02:00
return c === 0 } , $ : function ( a , b , c , d ) { var e ; e = 0 ; if ( d === undefined ) d = [ ] ; for ( ; b >= 32 ; b -= 32 ) { d . push ( c ) ; c = 0 } if ( b === 0 ) return d . concat ( a ) ; for ( e = 0 ; e < a . length ; e ++ ) { d . push ( c | a [ e ] >>> b ) ; c = a [ e ] << 32 - b } e = a . length ? a [ a . length - 1 ] : 0 ; a = sjcl . bitArray . getPartial ( e ) ; d . push ( sjcl . bitArray . partial ( b + a & 31 , b + a > 32 ? c : d . pop ( ) , 1 ) ) ; return d } , o : function ( a , b ) { return [ a [ 0 ] ^ b [ 0 ] , a [ 1 ] ^ b [ 1 ] , a [ 2 ] ^ b [ 2 ] , a [ 3 ] ^ b [ 3 ] ] } } ;
2010-05-27 00:34:42 +02:00
sjcl . codec . utf8String = { fromBits : function ( a ) { var b = "" , c = sjcl . bitArray . bitLength ( a ) , d , e ; for ( d = 0 ; d < c / 8 ; d ++ ) { if ( ( d & 3 ) === 0 ) e = a [ d / 4 ] ; b += String . fromCharCode ( e >>> 24 ) ; e <<= 8 } return decodeURIComponent ( escape ( b ) ) } , toBits : function ( a ) { a = unescape ( encodeURIComponent ( a ) ) ; var b = [ ] , c , d = 0 ; for ( c = 0 ; c < a . length ; c ++ ) { d = d << 8 | a . charCodeAt ( c ) ; if ( ( c & 3 ) === 3 ) { b . push ( d ) ; d = 0 } } c & 3 && b . push ( sjcl . bitArray . partial ( 8 * ( c & 3 ) , d ) ) ; return b } } ;
2010-05-27 01:32:17 +02:00
sjcl . codec . hex = { fromBits : function ( a ) { var b = "" , c ; for ( c = 0 ; c < a . length ; c ++ ) b += ( ( a [ c ] | 0 ) + 0xf00000000000 ) . toString ( 16 ) . substr ( 4 ) ; return b . substr ( 0 , sjcl . bitArray . bitLength ( a ) / 4 ) } , toBits : function ( a ) { var b , c = [ ] , d ; a = a . replace ( /\s|0x/g , "" ) ; d = a . length ; a += "00000000" ; for ( b = 0 ; b < a . length ; b += 8 ) c . push ( parseInt ( a . substr ( b , 8 ) , 16 ) ^ 0 ) ; return sjcl . bitArray . clamp ( c , d * 4 ) } } ;
2010-10-08 04:02:59 +02:00
sjcl . codec . base64 = { L : "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/" , fromBits : function ( a , b ) { var c = "" , d , e = 0 , f = sjcl . codec . base64 . L , g = 0 , h = sjcl . bitArray . bitLength ( a ) ; for ( d = 0 ; c . length * 6 < h ; ) { c += f . charAt ( ( g ^ a [ d ] >>> e ) >>> 26 ) ; if ( e < 6 ) { g = a [ d ] << 6 - e ; e += 26 ; d ++ } else { g <<= 6 ; e -= 6 } } for ( ; c . length & 3 && ! b ; ) c += "=" ; return c } , toBits : function ( a ) { a = a . replace ( /\s|=/g , "" ) ; var b = [ ] , c , d = 0 , e = sjcl . codec . base64 . L , f = 0 , g ; for ( c = 0 ; c < a . length ; c ++ ) { g = e . indexOf ( a . charAt ( c ) ) ; if ( g < 0 ) throw new sjcl . exception . invalid ( "this isn't base64!" ) ;
if ( d > 26 ) { d -= 26 ; b . push ( f ^ g >>> d ) ; f = g << 32 - d } else { d += 6 ; f ^= g << 32 - d } } d & 56 && b . push ( sjcl . bitArray . partial ( d & 56 , f , 1 ) ) ; return b } } ; sjcl . hash . sha256 = function ( a ) { this . c [ 0 ] || this . F ( ) ; if ( a ) { this . s = a . s . slice ( 0 ) ; this . m = a . m . slice ( 0 ) ; this . i = a . i } else this . reset ( ) } ; sjcl . hash . sha256 . hash = function ( a ) { return ( new sjcl . hash . sha256 ) . update ( a ) . finalize ( ) } ;
sjcl . hash . sha256 . prototype = { blockSize : 512 , reset : function ( ) { this . s = this . W . slice ( 0 ) ; this . m = [ ] ; this . i = 0 ; return this } , update : function ( a ) { if ( typeof a === "string" ) a = sjcl . codec . utf8String . toBits ( a ) ; var b , c = this . m = sjcl . bitArray . concat ( this . m , a ) ; b = this . i ; a = this . i = b + sjcl . bitArray . bitLength ( a ) ; for ( b = 512 + b & - 512 ; b <= a ; b += 512 ) this . K ( c . splice ( 0 , 16 ) ) ; return this } , finalize : function ( ) { var a , b = this . m , c = this . s ; b = sjcl . bitArray . concat ( b , [ sjcl . bitArray . partial ( 1 , 1 ) ] ) ; for ( a = b . length + 2 ; a & 15 ; a ++ ) b . push ( 0 ) ; b . push ( Math . floor ( this . i /
4294967296 ) ) ; for ( b . push ( this . i | 0 ) ; b . length ; ) this . K ( b . splice ( 0 , 16 ) ) ; this . reset ( ) ; return c } , W : [ ] , c : [ ] , F : function ( ) { function a ( e ) { return ( e - Math . floor ( e ) ) * 0x100000000 | 0 } var b = 0 , c = 2 , d ; a : for ( ; b < 64 ; c ++ ) { for ( d = 2 ; d * d <= c ; d ++ ) if ( c % d === 0 ) continue a ; if ( b < 8 ) this . W [ b ] = a ( Math . pow ( c , 0.5 ) ) ; this . c [ b ] = a ( Math . pow ( c , 1 / 3 ) ) ; b ++ } } , K : function ( a ) { var b , c , d = a . slice ( 0 ) , e = this . s , f = this . c , g = e [ 0 ] , h = e [ 1 ] , j = e [ 2 ] , n = e [ 3 ] , l = e [ 4 ] , m = e [ 5 ] , o = e [ 6 ] , q = e [ 7 ] ; for ( a = 0 ; a < 64 ; a ++ ) { if ( a < 16 ) b = d [ a ] ; else { b = d [ a + 1 & 15 ] ; c = d [ a + 14 & 15 ] ; b = d [ a & 15 ] = ( b >>> 7 ^ b >>> 18 ^
b >>> 3 ^ b << 25 ^ b << 14 ) + ( c >>> 17 ^ c >>> 19 ^ c >>> 10 ^ c << 15 ^ c << 13 ) + d [ a & 15 ] + d [ a + 9 & 15 ] | 0 } b = b + q + ( l >>> 6 ^ l >>> 11 ^ l >>> 25 ^ l << 26 ^ l << 21 ^ l << 7 ) + ( o ^ l & ( m ^ o ) ) + f [ a ] ; q = o ; o = m ; m = l ; l = n + b | 0 ; n = j ; j = h ; h = g ; g = b + ( h & j ^ n & ( h ^ j ) ) + ( h >>> 2 ^ h >>> 13 ^ h >>> 22 ^ h << 30 ^ h << 19 ^ h << 10 ) | 0 } e [ 0 ] = e [ 0 ] + g | 0 ; e [ 1 ] = e [ 1 ] + h | 0 ; e [ 2 ] = e [ 2 ] + j | 0 ; e [ 3 ] = e [ 3 ] + n | 0 ; e [ 4 ] = e [ 4 ] + l | 0 ; e [ 5 ] = e [ 5 ] + m | 0 ; e [ 6 ] = e [ 6 ] + o | 0 ; e [ 7 ] = e [ 7 ] + q | 0 } } ;
sjcl . mode . ccm = { name : "ccm" , encrypt : function ( a , b , c , d , e ) { var f , g = b . slice ( 0 ) , h = sjcl . bitArray , j = h . bitLength ( c ) / 8 , n = h . bitLength ( g ) / 8 ; e = e || 64 ; d = d || [ ] ; if ( j < 7 ) throw new sjcl . exception . invalid ( "ccm: iv must be at least 7 bytes" ) ; for ( f = 2 ; f < 4 && n >>> 8 * f ; f ++ ) ; if ( f < 15 - j ) f = 15 - j ; c = h . clamp ( c , 8 * ( 15 - f ) ) ; b = sjcl . mode . ccm . N ( a , b , c , d , e , f ) ; g = sjcl . mode . ccm . P ( a , g , c , b , e , f ) ; return h . concat ( g . data , g . tag ) } , decrypt : function ( a , b , c , d , e ) { e = e || 64 ; d = d || [ ] ; var f = sjcl . bitArray , g = f . bitLength ( c ) / 8 , h = f . bitLength ( b ) , j = f . clamp ( b , h - e ) , n = f . bitSlice ( b ,
h - e ) ; h = ( h - e ) / 8 ; if ( g < 7 ) throw new sjcl . exception . invalid ( "ccm: iv must be at least 7 bytes" ) ; for ( b = 2 ; b < 4 && h >>> 8 * b ; b ++ ) ; if ( b < 15 - g ) b = 15 - g ; c = f . clamp ( c , 8 * ( 15 - b ) ) ; j = sjcl . mode . ccm . P ( a , j , c , n , e , b ) ; a = sjcl . mode . ccm . N ( a , j . data , c , d , e , b ) ; if ( ! f . equal ( j . tag , a ) ) throw new sjcl . exception . corrupt ( "ccm: tag doesn't match" ) ; return j . data } , N : function ( a , b , c , d , e , f ) { var g = [ ] , h = sjcl . bitArray , j = h . o ; e /= 8 ; if ( e % 2 || e < 4 || e > 16 ) throw new sjcl . exception . invalid ( "ccm: invalid tag length" ) ; if ( d . length > 0xffffffff || b . length > 0xffffffff ) throw new sjcl . exception . bug ( "ccm: can't deal with 4GiB or more data" ) ;
f = [ h . partial ( 8 , ( d . length ? 64 : 0 ) | e - 2 << 2 | f - 1 ) ] ; f = h . concat ( f , c ) ; f [ 3 ] |= h . bitLength ( b ) / 8 ; f = a . encrypt ( f ) ; if ( d . length ) { c = h . bitLength ( d ) / 8 ; if ( c <= 65279 ) g = [ h . partial ( 16 , c ) ] ; else if ( c <= 0xffffffff ) g = h . concat ( [ h . partial ( 16 , 65534 ) ] , [ c ] ) ; g = h . concat ( g , d ) ; for ( d = 0 ; d < g . length ; d += 4 ) f = a . encrypt ( j ( f , g . slice ( d , d + 4 ) ) ) } for ( d = 0 ; d < b . length ; d += 4 ) f = a . encrypt ( j ( f , b . slice ( d , d + 4 ) ) ) ; return h . clamp ( f , e * 8 ) } , P : function ( a , b , c , d , e , f ) { var g , h = sjcl . bitArray ; g = h . o ; var j = b . length , n = h . bitLength ( b ) ; c = h . concat ( [ h . partial ( 8 , f - 1 ) ] , c ) . concat ( [ 0 ,
0 , 0 ] ) . slice ( 0 , 4 ) ; d = h . bitSlice ( g ( d , a . encrypt ( c ) ) , 0 , e ) ; if ( ! j ) return { tag : d , data : [ ] } ; for ( g = 0 ; g < j ; g += 4 ) { c [ 3 ] ++ ; e = a . encrypt ( c ) ; b [ g ] ^= e [ 0 ] ; b [ g + 1 ] ^= e [ 1 ] ; b [ g + 2 ] ^= e [ 2 ] ; b [ g + 3 ] ^= e [ 3 ] } return { tag : d , data : h . clamp ( b , n ) } } } ;
sjcl . mode . ocb2 = { name : "ocb2" , encrypt : function ( a , b , c , d , e , f ) { if ( sjcl . bitArray . bitLength ( c ) !== 128 ) throw new sjcl . exception . invalid ( "ocb iv must be 128 bits" ) ; var g , h = sjcl . mode . ocb2 . I , j = sjcl . bitArray , n = j . o , l = [ 0 , 0 , 0 , 0 ] ; c = h ( a . encrypt ( c ) ) ; var m , o = [ ] ; d = d || [ ] ; e = e || 64 ; for ( g = 0 ; g + 4 < b . length ; g += 4 ) { m = b . slice ( g , g + 4 ) ; l = n ( l , m ) ; m = n ( c , a . encrypt ( n ( c , m ) ) ) ; o . splice ( g , 0 , m [ 0 ] , m [ 1 ] , m [ 2 ] , m [ 3 ] ) ; c = h ( c ) } m = b . slice ( g ) ; b = j . bitLength ( m ) ; g = a . encrypt ( n ( c , [ 0 , 0 , 0 , b ] ) ) ; m = j . clamp ( n ( m , g ) , b ) ; l = n ( l , n ( m , g ) ) ; l = a . encrypt ( n ( l , n ( c , h ( c ) ) ) ) ; if ( d . length ) l =
n ( l , f ? d : sjcl . mode . ocb2 . pmac ( a , d ) ) ; return o . concat ( j . concat ( m , j . clamp ( l , e ) ) ) } , decrypt : function ( a , b , c , d , e , f ) { if ( sjcl . bitArray . bitLength ( c ) !== 128 ) throw new sjcl . exception . invalid ( "ocb iv must be 128 bits" ) ; e = e || 64 ; var g = sjcl . mode . ocb2 . I , h = sjcl . bitArray , j = h . o , n = [ 0 , 0 , 0 , 0 ] , l = g ( a . encrypt ( c ) ) , m , o , q = sjcl . bitArray . bitLength ( b ) - e , r = [ ] ; d = d || [ ] ; for ( c = 0 ; c + 4 < q / 32 ; c += 4 ) { m = j ( l , a . decrypt ( j ( l , b . slice ( c , c + 4 ) ) ) ) ; n = j ( n , m ) ; r . splice ( c , 0 , m [ 0 ] , m [ 1 ] , m [ 2 ] , m [ 3 ] ) ; l = g ( l ) } o = q - c * 32 ; m = a . encrypt ( j ( l , [ 0 , 0 , 0 , o ] ) ) ; m = j ( m , h . clamp ( b . slice ( c ) ,
o ) ) ; n = j ( n , m ) ; n = a . encrypt ( j ( n , j ( l , g ( l ) ) ) ) ; if ( d . length ) n = j ( n , f ? d : sjcl . mode . ocb2 . pmac ( a , d ) ) ; if ( ! h . equal ( h . clamp ( n , e ) , h . bitSlice ( b , q ) ) ) throw new sjcl . exception . corrupt ( "ocb: tag doesn't match" ) ; return r . concat ( h . clamp ( m , o ) ) } , pmac : function ( a , b ) { var c , d = sjcl . mode . ocb2 . I , e = sjcl . bitArray , f = e . o , g = [ 0 , 0 , 0 , 0 ] , h = a . encrypt ( [ 0 , 0 , 0 , 0 ] ) ; h = f ( h , d ( d ( h ) ) ) ; for ( c = 0 ; c + 4 < b . length ; c += 4 ) { h = d ( h ) ; g = f ( g , a . encrypt ( f ( h , b . slice ( c , c + 4 ) ) ) ) } b = b . slice ( c ) ; if ( e . bitLength ( b ) < 128 ) { h = f ( h , d ( h ) ) ; b = e . concat ( b , [ 2147483648 | 0 ] ) } g = f ( g , b ) ; return a . encrypt ( f ( d ( f ( h ,
d ( h ) ) ) , g ) ) } , I : function ( a ) { return [ a [ 0 ] << 1 ^ a [ 1 ] >>> 31 , a [ 1 ] << 1 ^ a [ 2 ] >>> 31 , a [ 2 ] << 1 ^ a [ 3 ] >>> 31 , a [ 3 ] << 1 ^ ( a [ 0 ] >>> 31 ) * 135 ] } } ; sjcl . misc . hmac = function ( a , b ) { this . V = b = b || sjcl . hash . sha256 ; var c = [ [ ] , [ ] ] , d = b . prototype . blockSize / 32 ; this . p = [ new b , new b ] ; if ( a . length > d ) a = b . hash ( a ) ; for ( b = 0 ; b < d ; b ++ ) { c [ 0 ] [ b ] = a [ b ] ^ 909522486 ; c [ 1 ] [ b ] = a [ b ] ^ 1549556828 } this . p [ 0 ] . update ( c [ 0 ] ) ; this . p [ 1 ] . update ( c [ 1 ] ) } ; sjcl . misc . hmac . prototype . encrypt = sjcl . misc . hmac . prototype . mac = function ( a , b ) { a = ( new this . V ( this . p [ 0 ] ) ) . update ( a , b ) . finalize ( ) ; return ( new this . V ( this . p [ 1 ] ) ) . update ( a ) . finalize ( ) } ;
sjcl . misc . pbkdf2 = function ( a , b , c , d , e ) { c = c || 1E3 ; if ( d < 0 || c < 0 ) throw sjcl . exception . invalid ( "invalid params to pbkdf2" ) ; if ( typeof a === "string" ) a = sjcl . codec . utf8String . toBits ( a ) ; e = e || sjcl . misc . hmac ; a = new e ( a ) ; var f , g , h , j , n = [ ] , l = sjcl . bitArray ; for ( j = 1 ; 32 * n . length < ( d || 1 ) ; j ++ ) { e = f = a . encrypt ( l . concat ( b , [ j ] ) ) ; for ( g = 1 ; g < c ; g ++ ) { f = a . encrypt ( f ) ; for ( h = 0 ; h < f . length ; h ++ ) e [ h ] ^= f [ h ] } n = n . concat ( e ) } if ( d ) n = l . clamp ( n , d ) ; return n } ;
2010-10-08 04:42:19 +02:00
sjcl . random = { randomWords : function ( a , b ) { var c = [ ] ; b = this . isReady ( b ) ; var d ; if ( b === 0 ) throw new sjcl . exception . notReady ( "generator isn't seeded" ) ; else b & 2 && this . fa ( ! ( b & 1 ) ) ; for ( b = 0 ; b < a ; b += 4 ) { ( b + 1 ) % 0x10000 === 0 && this . U ( ) ; d = this . D ( ) ; c . push ( d [ 0 ] , d [ 1 ] , d [ 2 ] , d [ 3 ] ) } this . U ( ) ; return c . slice ( 0 , a ) } , setDefaultParanoia : function ( a ) { this . C = a } , addEntropy : function ( a , b , c ) { c = c || "user" ; var d , e , f = ( new Date ) . valueOf ( ) , g = this . w [ c ] , h = this . isReady ( ) ; d = this . M [ c ] ; if ( d === undefined ) d = this . M [ c ] = this . ca ++ ; if ( g === undefined ) g = this . w [ c ] = 0 ;
2010-10-08 04:02:59 +02:00
this . w [ c ] = ( this . w [ c ] + 1 ) % this . f . length ; switch ( typeof a ) { case "number" : break ; case "object" : if ( b === undefined ) for ( c = b = 0 ; c < a . length ; c ++ ) for ( e = a [ c ] ; e > 0 ; ) { b ++ ; e >>>= 1 } this . f [ g ] . update ( [ d , this . R ++ , 2 , b , f , a . length ] . concat ( a ) ) ; break ; case "string" : if ( b === undefined ) b = a . length ; this . f [ g ] . update ( [ d , this . R ++ , 3 , b , f , a . length ] ) ; this . f [ g ] . update ( a ) ; break ; default : throw new sjcl . exception . bug ( "random: addEntropy only supports number, array or string" ) ; } this . n [ g ] += b ; this . j += b ; if ( h === 0 ) { this . isReady ( ) !== 0 && this . T ( "seeded" ,
2010-10-08 04:42:19 +02:00
Math . max ( this . k , this . j ) ) ; this . T ( "progress" , this . getProgress ( ) ) } } , isReady : function ( a ) { a = this . J [ a !== undefined ? a : this . C ] ; return this . k && this . k >= a ? this . n [ 0 ] > 80 && ( new Date ) . valueOf ( ) > this . Y ? 3 : 1 : this . j >= a ? 2 : 0 } , getProgress : function ( a ) { a = this . J [ a ? a : this . C ] ; return this . k >= a ? 1 [ "0" ] : this . j > a ? 1 [ "0" ] : this . j / a } , startCollectors : function ( ) { if ( ! this . q ) { if ( window . addEventListener ) { window . addEventListener ( "load" , this . t , false ) ; window . addEventListener ( "mousemove" , this . u , false ) } else if ( document . attachEvent ) { document . attachEvent ( "onload" ,
this . t ) ; document . attachEvent ( "onmousemove" , this . u ) } else throw new sjcl . exception . bug ( "can't attach event" ) ; this . q = true } } , stopCollectors : function ( ) { if ( this . q ) { if ( window . removeEventListener ) { window . removeEventListener ( "load" , this . t ) ; window . removeEventListener ( "mousemove" , this . u ) } else if ( window . detachEvent ) { window . detachEvent ( "onload" , this . t ) ; window . detachEvent ( "onmousemove" , this . u ) } this . q = false } } , addEventListener : function ( a , b ) { this . A [ a ] [ this . ba ++ ] = b } , removeEventListener : function ( a , b ) { var c ; a = this . A [ a ] ;
var d = [ ] ; for ( c in a ) a . hasOwnProperty [ c ] && a [ c ] === b && d . push ( c ) ; for ( b = 0 ; b < d . length ; b ++ ) { c = d [ b ] ; delete a [ c ] } } , f : [ new sjcl . hash . sha256 ] , n : [ 0 ] , H : 0 , w : { } , R : 0 , M : { } , ca : 0 , k : 0 , j : 0 , Y : 0 , c : [ 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 ] , h : [ 0 , 0 , 0 , 0 ] , B : undefined , C : 6 , q : false , A : { progress : { } , seeded : { } } , ba : 0 , J : [ 0 , 48 , 64 , 96 , 128 , 192 , 0x100 , 384 , 512 , 768 , 1024 ] , D : function ( ) { for ( var a = 0 ; a < 4 ; a ++ ) { this . h [ a ] = this . h [ a ] + 1 | 0 ; if ( this . h [ a ] ) break } return this . B . encrypt ( this . h ) } , U : function ( ) { this . c = this . D ( ) . concat ( this . D ( ) ) ; this . B = new sjcl . cipher . aes ( this . c ) } , ea : function ( a ) { this . c =
sjcl . hash . sha256 . hash ( this . c . concat ( a ) ) ; this . B = new sjcl . cipher . aes ( this . c ) ; for ( a = 0 ; a < 4 ; a ++ ) { this . h [ a ] = this . h [ a ] + 1 | 0 ; if ( this . h [ a ] ) break } } , fa : function ( a ) { var b = [ ] , c = 0 , d ; this . Y = b [ 0 ] = ( new Date ) . valueOf ( ) + 3E4 ; for ( d = 0 ; d < 16 ; d ++ ) b . push ( Math . random ( ) * 0x100000000 | 0 ) ; for ( d = 0 ; d < this . f . length ; d ++ ) { b = b . concat ( this . f [ d ] . finalize ( ) ) ; c += this . n [ d ] ; this . n [ d ] = 0 ; if ( ! a && this . H & 1 << d ) break } if ( this . H >= 1 << this . f . length ) { this . f . push ( new sjcl . hash . sha256 ) ; this . n . push ( 0 ) } this . j -= c ; if ( c > this . k ) this . k = c ; this . H ++ ; this . ea ( b ) } , u : function ( a ) { sjcl . random . addEntropy ( [ a . x ||
2010-10-08 04:02:59 +02:00
a . clientX || a . offsetX , a . y || a . clientY || a . offsetY ] , 2 , "mouse" ) } , t : function ( ) { sjcl . random . addEntropy ( new Date , 2 , "loadtime" ) } , T : function ( a , b ) { var c ; a = sjcl . random . A [ a ] ; var d = [ ] ; for ( c in a ) a . hasOwnProperty ( c ) && d . push ( a [ c ] ) ; for ( c = 0 ; c < d . length ; c ++ ) d [ c ] ( b ) } } ;
sjcl . json = { defaults : { v : 1 , iter : 1E3 , ks : 128 , ts : 64 , mode : "ccm" , adata : "" , cipher : "aes" } , encrypt : function ( a , b , c , d ) { c = c || { } ; d = d || { } ; var e = sjcl . json , f = e . g ( { iv : sjcl . random . randomWords ( 4 , 0 ) } , e . defaults ) ; e . g ( f , c ) ; if ( typeof f . salt === "string" ) f . salt = sjcl . codec . base64 . toBits ( f . salt ) ; if ( typeof f . iv === "string" ) f . iv = sjcl . codec . base64 . toBits ( f . iv ) ; if ( ! sjcl . mode [ f . mode ] || ! sjcl . cipher [ f . cipher ] || typeof a === "string" && f . iter <= 100 || f . ts !== 64 && f . ts !== 96 && f . ts !== 128 || f . ks !== 128 && f . ks !== 192 && f . ks !== 0x100 || f . iv . length < 2 || f . iv . length >
4 ) throw new sjcl . exception . invalid ( "json encrypt: invalid parameters" ) ; if ( typeof a === "string" ) { c = sjcl . misc . cachedPbkdf2 ( a , f ) ; a = c . key . slice ( 0 , f . ks / 32 ) ; f . salt = c . salt } if ( typeof b === "string" ) b = sjcl . codec . utf8String . toBits ( b ) ; c = new sjcl . cipher [ f . cipher ] ( a ) ; e . g ( d , f ) ; d . key = a ; f . ct = sjcl . mode [ f . mode ] . encrypt ( c , b , f . iv , f . adata , f . tag ) ; return e . encode ( f ) } , decrypt : function ( a , b , c , d ) { c = c || { } ; d = d || { } ; var e = sjcl . json ; b = e . g ( e . g ( e . g ( { } , e . defaults ) , e . decode ( b ) ) , c , true ) ; if ( typeof b . salt === "string" ) b . salt = sjcl . codec . base64 . toBits ( b . salt ) ;
if ( typeof b . iv === "string" ) b . iv = sjcl . codec . base64 . toBits ( b . iv ) ; if ( ! sjcl . mode [ b . mode ] || ! sjcl . cipher [ b . cipher ] || typeof a === "string" && b . iter <= 100 || b . ts !== 64 && b . ts !== 96 && b . ts !== 128 || b . ks !== 128 && b . ks !== 192 && b . ks !== 0x100 || ! b . iv || b . iv . length < 2 || b . iv . length > 4 ) throw new sjcl . exception . invalid ( "json decrypt: invalid parameters" ) ; if ( typeof a === "string" ) { c = sjcl . misc . cachedPbkdf2 ( a , b ) ; a = c . key . slice ( 0 , b . ks / 32 ) ; b . salt = c . salt } c = new sjcl . cipher [ b . cipher ] ( a ) ; c = sjcl . mode [ b . mode ] . decrypt ( c , b . ct , b . iv , b . adata , b . tag ) ; e . g ( d ,
b ) ; d . key = a ; return sjcl . codec . utf8String . fromBits ( c ) } , encode : function ( a ) { var b , c = "{" , d = "" ; for ( b in a ) if ( a . hasOwnProperty ( b ) ) { if ( ! b . match ( /^[a-z0-9]+$/i ) ) throw new sjcl . exception . invalid ( "json encode: invalid property name" ) ; c += d + "'" + b + "':" ; d = "," ; switch ( typeof a [ b ] ) { case "number" : case "boolean" : c += a [ b ] ; break ; case "string" : c += '"' + escape ( a [ b ] ) + '"' ; break ; case "object" : c += '"' + sjcl . codec . base64 . fromBits ( a [ b ] , 1 ) + '"' ; break ; default : throw new sjcl . exception . bug ( "json encode: unsupported type" ) ; } } return c + "}" } ,
decode : function ( a ) { a = a . replace ( /\s/g , "" ) ; if ( ! a . match ( /^\{.*\}$/ ) ) throw new sjcl . exception . invalid ( "json decode: this isn't json!" ) ; a = a . replace ( /^\{|\}$/g , "" ) . split ( /,/ ) ; var b = { } , c , d ; for ( c = 0 ; c < a . length ; c ++ ) { if ( ! ( d = a [ c ] . match ( /^(?:(["']?)([a-z][a-z0-9]*)\1):(?:(\d+)|"([a-z0-9+\/%*_.@=\-]*)")$/i ) ) ) throw new sjcl . exception . invalid ( "json decode: this isn't json!" ) ; b [ d [ 2 ] ] = d [ 3 ] ? parseInt ( d [ 3 ] , 10 ) : d [ 2 ] . match ( /^(ct|salt|iv)$/ ) ? sjcl . codec . base64 . toBits ( d [ 4 ] ) : unescape ( d [ 4 ] ) } return b } , g : function ( a , b , c ) { if ( a ===
2010-10-08 04:42:19 +02:00
undefined ) a = { } ; if ( b === undefined ) return a ; var d ; for ( d in b ) if ( b . hasOwnProperty ( d ) ) { if ( c && a [ d ] !== undefined && a [ d ] !== b [ d ] ) throw new sjcl . exception . invalid ( "required parameter overridden" ) ; a [ d ] = b [ d ] } return a } , ga : function ( a , b ) { var c = { } , d ; for ( d = 0 ; d < b . length ; d ++ ) if ( a [ b [ d ] ] !== undefined ) c [ b [ d ] ] = a [ b [ d ] ] ; return c } } ; sjcl . encrypt = sjcl . json . encrypt ; sjcl . decrypt = sjcl . json . decrypt ; sjcl . misc . da = { } ;
sjcl . misc . cachedPbkdf2 = function ( a , b ) { var c = sjcl . misc . da , d ; b = b || { } ; d = b . iter || 1E3 ; c = c [ a ] = c [ a ] || { } ; d = c [ d ] = c [ d ] || { firstSalt : b . salt && b . salt . length ? b . salt . slice ( 0 ) : sjcl . random . randomWords ( 2 , 0 ) } ; c = b . salt === undefined ? d . firstSalt : b . salt ; d [ c ] = d [ c ] || sjcl . misc . pbkdf2 ( a , c , b . iter ) ; return { key : d [ c ] . slice ( 0 ) , salt : c . slice ( 0 ) } } ; sjcl . bn = function ( a ) { this . initWith ( a ) } ;
2010-10-08 04:02:59 +02:00
sjcl . bn . prototype = { radix : 24 , maxMul : 8 , d : sjcl . bn , copy : function ( ) { return new this . d ( this ) } , initWith : function ( a ) { var b = 0 , c ; switch ( typeof a ) { case "object" : this . limbs = a . limbs . slice ( 0 ) ; break ; case "number" : this . limbs = [ a ] ; this . normalize ( ) ; break ; case "string" : a = a . replace ( /^0x/ , "" ) ; this . limbs = [ ] ; c = this . radix / 4 ; for ( b = 0 ; b < a . length ; b += c ) this . limbs . push ( parseInt ( a . substring ( Math . max ( a . length - b - c , 0 ) , a . length - b ) , 16 ) ) ; break ; default : this . limbs = [ 0 ] } return this } , equals : function ( a ) { if ( typeof a == "number" ) a = new this . d ( a ) ;
var b = 0 , c ; this . fullReduce ( ) ; a . fullReduce ( ) ; for ( c = 0 ; c < this . limbs . length || c < a . limbs . length ; c ++ ) b |= this . getLimb ( c ) ^ a . getLimb ( c ) ; return b === 0 } , getLimb : function ( a ) { return a >= this . limbs . length ? 0 : this . limbs [ a ] } , greaterEquals : function ( a ) { if ( typeof a == "number" ) a = new this . d ( a ) ; var b = 0 , c = 0 , d , e , f ; for ( d = Math . max ( this . limbs . length , a . limbs . length ) - 1 ; d >= 0 ; d -- ) { e = this . getLimb ( d ) ; f = a . getLimb ( d ) ; c |= f - e & ~ b ; b |= e - f & ~ c } return ( c | ~ b ) >>> 31 } , toString : function ( ) { this . fullReduce ( ) ; var a = "" , b , c , d = this . limbs ; for ( b = 0 ; b < this . limbs . length ; b ++ ) { for ( c =
d [ b ] . toString ( 16 ) ; b < this . limbs . length - 1 && c . length < 6 ; ) c = "0" + c ; a = c + a } return "0x" + a } , addM : function ( a ) { if ( typeof a !== "object" ) a = new this . d ( a ) ; var b = this . limbs , c = a . limbs ; for ( a = b . length ; a < c . length ; a ++ ) b [ a ] = 0 ; for ( a = 0 ; a < c . length ; a ++ ) b [ a ] += c [ a ] ; return this } , doubleM : function ( ) { var a , b = 0 , c , d = this . radix , e = this . radixMask , f = this . limbs ; for ( a = 0 ; a < f . length ; a ++ ) { c = f [ a ] ; c = c + c + b ; f [ a ] = c & e ; b = c >> d } b && f . push ( b ) ; return this } , halveM : function ( ) { var a , b = 0 , c , d = this . radix , e = this . limbs ; for ( a = e . length - 1 ; a >= 0 ; a -- ) { c = e [ a ] ; e [ a ] = c + b >>
1 ; b = ( c & 1 ) << d } e [ e . length - 1 ] || e . pop ( ) ; return this } , subM : function ( a ) { if ( typeof a !== "object" ) a = new this . d ( a ) ; var b = this . limbs , c = a . limbs ; for ( a = b . length ; a < c . length ; a ++ ) b [ a ] = 0 ; for ( a = 0 ; a < c . length ; a ++ ) b [ a ] -= c [ a ] ; return this } , mod : function ( a ) { a = ( new sjcl . bn ( a ) ) . normalize ( ) ; for ( var b = ( new sjcl . bn ( this ) ) . normalize ( ) , c = 0 ; b . greaterEquals ( a ) ; c ++ ) a . doubleM ( ) ; for ( ; c > 0 ; c -- ) { a . halveM ( ) ; b . greaterEquals ( a ) && b . subM ( a ) . normalize ( ) } return b . trim ( ) } , inverseMod : function ( a ) { var b = new sjcl . bn ( 1 ) , c = new sjcl . bn ( 0 ) , d = new sjcl . bn ( this ) ,
e = new sjcl . bn ( a ) , f , g = 1 ; if ( ! ( a . limbs [ 0 ] & 1 ) ) throw new sjcl . exception . invalid ( "inverseMod: p must be odd" ) ; do { if ( d . limbs [ 0 ] & 1 ) { if ( ! d . greaterEquals ( e ) ) { f = d ; d = e ; e = f ; f = b ; b = c ; c = f } d . subM ( e ) ; d . normalize ( ) ; b . greaterEquals ( c ) || b . addM ( a ) ; b . subM ( c ) } d . halveM ( ) ; b . limbs [ 0 ] & 1 && b . addM ( a ) ; b . normalize ( ) ; b . halveM ( ) ; for ( f = g = 0 ; f < d . limbs . length ; f ++ ) g |= d . limbs [ f ] } while ( g ) ; if ( ! e . equals ( 1 ) ) throw new sjcl . exception . invalid ( "inverseMod: p and x must be relatively prime" ) ; return c } , add : function ( a ) { return this . copy ( ) . addM ( a ) } ,
sub : function ( a ) { return this . copy ( ) . subM ( a ) } , mul : function ( a ) { if ( typeof a == "number" ) a = new this . d ( a ) ; var b , c = this . limbs , d = a . limbs , e = c . length , f = d . length , g = new this . d , h = g . limbs , j , n = this . maxMul ; for ( b = 0 ; b < this . limbs . length + a . limbs . length + 1 ; b ++ ) h [ b ] = 0 ; for ( b = 0 ; b < e ; b ++ ) { j = c [ b ] ; for ( a = 0 ; a < f ; a ++ ) h [ b + a ] += j * d [ a ] ; if ( ! -- n ) { n = this . maxMul ; g . cnormalize ( ) } } return g . cnormalize ( ) . reduce ( ) } , square : function ( ) { return this . mul ( this ) } , power : function ( a ) { if ( typeof a == "number" ) a = [ a ] ; else if ( a . limbs !== undefined ) a = a . normalize ( ) . limbs ;
var b , c = new this . d ( 1 ) , d = this ; for ( i = 0 ; i < a . length ; i ++ ) for ( b = 0 ; b < this . radix ; b ++ ) { if ( a [ i ] & 1 << b ) c = c . mul ( d ) ; d = d . square ( ) } return c } , trim : function ( ) { var a = this . limbs , b ; do b = a . pop ( ) ; while ( a . length && b == 0 ) ; a . push ( b ) ; return this } , reduce : function ( ) { return this } , fullReduce : function ( ) { return this . normalize ( ) } , normalize : function ( ) { var a = 0 , b , c = this . ipv , d , e = this . limbs , f = e . length , g = this . radixMask ; for ( b = 0 ; b < f || a !== 0 && a !== - 1 ; b ++ ) { a = ( e [ b ] || 0 ) + a ; d = e [ b ] = a & g ; a = ( a - d ) * c } if ( a == - 1 ) e [ b - 1 ] -= this . placeVal ; return this } , cnormalize : function ( ) { var a =
2010-10-08 06:10:46 +02:00
0 , b , c = this . ipv , d , e = this . limbs , f = e . length , g = this . radixMask ; for ( b = 0 ; b < f - 1 ; b ++ ) { a = e [ b ] + a ; d = e [ b ] = a & g ; a = ( a - d ) * c } e [ b ] += a ; return this } , toBits : function ( a ) { this . fullReduce ( ) ; a = a || this . exponent || this . limbs . length * this . radix ; var b = Math . floor ( ( a - 1 ) / 24 ) , c = sjcl . bitArray ; a = [ c . partial ( ( a + 7 & - 8 ) % this . radix || this . radix , this . getLimb ( b ) ) ] ; for ( b -- ; b >= 0 ; b -- ) a = c . concat ( a , [ c . partial ( this . radix , this . getLimb ( b ) ) ] ) ; return a } , bitLength : function ( ) { this . fullReduce ( ) ; for ( var a = this . radix * ( this . limbs . length - 1 ) , b = this . limbs [ this . limbs . length -
2010-10-08 04:02:59 +02:00
1 ] ; b ; b >>= 1 ) a ++ ; return a + 7 & - 8 } } ; sjcl . bn . fromBits = function ( a ) { var b = new this , c = [ ] , d = sjcl . bitArray , e = this . prototype , f = Math . min ( this . bitLength || 0x100000000 , d . bitLength ( a ) ) , g = f % e . radix || e . radix ; for ( c [ 0 ] = d . extract ( a , 0 , g ) ; g < f ; g += e . radix ) c . unshift ( d . extract ( a , g , e . radix ) ) ; b . limbs = c ; return b } ; sjcl . bn . prototype . ipv = 1 / ( sjcl . bn . prototype . placeVal = Math . pow ( 2 , sjcl . bn . prototype . radix ) ) ; sjcl . bn . prototype . radixMask = ( 1 << sjcl . bn . prototype . radix ) - 1 ;
sjcl . bn . pseudoMersennePrime = function ( a , b ) { function c ( g ) { this . initWith ( g ) } var d = c . prototype = new sjcl . bn , e , f ; e = d . modOffset = Math . ceil ( f = a / d . radix ) ; d . exponent = a ; d . offset = [ ] ; d . factor = [ ] ; d . minOffset = e ; d . fullMask = 0 ; d . fullOffset = [ ] ; d . fullFactor = [ ] ; d . modulus = c . modulus = new sjcl . bn ( Math . pow ( 2 , a ) ) ; d . fullMask = 0 | - Math . pow ( 2 , a % d . radix ) ; for ( e = 0 ; e < b . length ; e ++ ) { d . offset [ e ] = Math . floor ( b [ e ] [ 0 ] / d . radix - f ) ; d . fullOffset [ e ] = Math . ceil ( b [ e ] [ 0 ] / d . radix - f ) ; d . factor [ e ] = b [ e ] [ 1 ] * Math . pow ( 0.5 , a - b [ e ] [ 0 ] + d . offset [ e ] * d . radix ) ; d . fullFactor [ e ] =
2010-10-08 04:42:19 +02:00
b [ e ] [ 1 ] * Math . pow ( 0.5 , a - b [ e ] [ 0 ] + d . fullOffset [ e ] * d . radix ) ; d . modulus . addM ( new sjcl . bn ( Math . pow ( 2 , b [ e ] [ 0 ] ) * b [ e ] [ 1 ] ) ) ; d . minOffset = Math . min ( d . minOffset , - d . offset [ e ] ) } d . d = c ; d . modulus . cnormalize ( ) ; d . reduce = function ( ) { var g , h , j , n = this . modOffset , l = this . limbs , m = this . offset , o = this . offset . length , q = this . factor , r ; for ( g = this . minOffset ; l . length > n ; ) { j = l . pop ( ) ; r = l . length ; for ( h = 0 ; h < o ; h ++ ) l [ r + m [ h ] ] -= q [ h ] * j ; g -- ; if ( g == 0 ) { l . push ( 0 ) ; this . cnormalize ( ) ; g = this . minOffset } } this . cnormalize ( ) ; return this } ; d . aa = d . fullMask == - 1 ? d . reduce :
function ( ) { var g = this . limbs , h = g . length - 1 , j ; this . reduce ( ) ; if ( h == this . modOffset - 1 ) { j = g [ h ] & this . fullMask ; g [ h ] -= j ; for ( k = 0 ; k < this . fullOffset . length ; k ++ ) g [ h + this . fullOffset [ k ] ] -= this . fullFactor [ k ] * j ; this . normalize ( ) } } ; d . fullReduce = function ( ) { var g , h ; this . aa ( ) ; this . addM ( this . modulus ) ; this . addM ( this . modulus ) ; this . normalize ( ) ; this . aa ( ) ; for ( h = this . limbs . length ; h < this . modOffset ; h ++ ) this . limbs [ h ] = 0 ; g = this . greaterEquals ( this . modulus ) ; for ( h = 0 ; h < this . limbs . length ; h ++ ) this . limbs [ h ] -= this . modulus . limbs [ h ] * g ; this . cnormalize ( ) ;
2010-10-08 04:02:59 +02:00
return this } ; d . inverse = function ( ) { return this . power ( this . modulus . sub ( 2 ) ) } ; c . fromBits = sjcl . bn . fromBits ; return c } ;
sjcl . bn . prime = { p127 : sjcl . bn . pseudoMersennePrime ( 127 , [ [ 0 , - 1 ] ] ) , p25519 : sjcl . bn . pseudoMersennePrime ( 255 , [ [ 0 , - 19 ] ] ) , p192 : sjcl . bn . pseudoMersennePrime ( 192 , [ [ 0 , - 1 ] , [ 64 , - 1 ] ] ) , p224 : sjcl . bn . pseudoMersennePrime ( 224 , [ [ 0 , 1 ] , [ 96 , - 1 ] ] ) , p256 : sjcl . bn . pseudoMersennePrime ( 0x100 , [ [ 0 , - 1 ] , [ 96 , 1 ] , [ 192 , 1 ] , [ 224 , - 1 ] ] ) , p384 : sjcl . bn . pseudoMersennePrime ( 384 , [ [ 0 , - 1 ] , [ 32 , 1 ] , [ 96 , - 1 ] , [ 128 , - 1 ] ] ) , p521 : sjcl . bn . pseudoMersennePrime ( 521 , [ [ 0 , - 1 ] ] ) } ;
sjcl . bn . random = function ( a , b ) { if ( typeof a != "object" ) a = new sjcl . bn ( a ) ; for ( var c , d , e = a . limbs . length , f = a . limbs [ e - 1 ] + 1 , g = new sjcl . bn ; ; ) { do { c = sjcl . random . randomWords ( e , b ) ; if ( c [ e - 1 ] < 0 ) c [ e - 1 ] += 0x100000000 } while ( Math . floor ( c [ e - 1 ] / f ) == Math . floor ( 0x100000000 / f ) ) ; c [ e - 1 ] %= f ; for ( d = 0 ; d < e - 1 ; d ++ ) c [ d ] &= a . radixMask ; g . limbs = c ; if ( ! g . greaterEquals ( a ) ) return g } } ; sjcl . ecc = { } ; sjcl . ecc . point = function ( a , b , c ) { if ( b === undefined ) this . isIdentity = true ; else { this . x = b ; this . y = c ; this . isIdentity = false } this . curve = a } ;
2010-10-08 04:42:19 +02:00
sjcl . ecc . point . prototype = { toJac : function ( ) { return new sjcl . ecc . pointJac ( this . curve , this . x , this . y , new this . curve . field ( 1 ) ) } , mult : function ( a ) { return this . toJac ( ) . mult ( a , this ) . toAffine ( ) } , mult2 : function ( a , b , c ) { return this . toJac ( ) . mult2 ( a , this , b , c ) . toAffine ( ) } , multiples : function ( ) { var a , b , c ; if ( this . X === undefined ) { c = this . toJac ( ) . doubl ( ) ; a = this . X = [ new sjcl . ecc . point ( this . curve ) , this , c . toAffine ( ) ] ; for ( b = 3 ; b < 16 ; b ++ ) { c = c . add ( this ) ; a . push ( c . toAffine ( ) ) } } return this . X } , isValid : function ( ) { return this . y . square ( ) . equals ( this . curve . b . add ( this . x . mul ( this . curve . a . add ( this . x . square ( ) ) ) ) ) } ,
toBits : function ( ) { return sjcl . bitArray . concat ( this . x . toBits ( ) , this . y . toBits ( ) ) } } ; sjcl . ecc . pointJac = function ( a , b , c , d ) { if ( b === undefined ) this . isIdentity = true ; else { this . x = b ; this . y = c ; this . z = d ; this . isIdentity = false } this . curve = a } ;
2010-10-08 04:02:59 +02:00
sjcl . ecc . pointJac . prototype = { add : function ( a ) { if ( this . curve !== a . curve ) throw "sjcl['ecc']['add'](): Points must be on the same curve to add them!" ; if ( this . isIdentity ) return a . toJac ( ) ; else if ( a . isIdentity ) return this ; var b = this . z . square ( ) , c = a . x . mul ( b ) . subM ( this . x ) ; if ( c . equals ( 0 ) ) return this . y . equals ( a . y . mul ( b . mul ( this . z ) ) ) ? this . doubl ( ) : new sjcl . ecc . pointJac ( this . curve ) ; b = a . y . mul ( b . mul ( this . z ) ) . subM ( this . y ) ; var d = c . square ( ) ; a = b . square ( ) ; var e = c . square ( ) . mul ( c ) . addM ( this . x . add ( this . x ) . mul ( d ) ) ; a = a . subM ( e ) ;
b = this . x . mul ( d ) . subM ( a ) . mul ( b ) ; d = this . y . mul ( c . square ( ) . mul ( c ) ) ; b = b . subM ( d ) ; c = this . z . mul ( c ) ; c = new sjcl . ecc . pointJac ( this . curve , a , b , c ) ; if ( ! c . isValid ( ) ) throw "FOOOOOOOO" ; return c } , doubl : function ( ) { if ( this . isIdentity ) return this ; var a = this . y . square ( ) , b = a . mul ( this . x . mul ( 4 ) ) , c = a . square ( ) . mul ( 8 ) ; a = this . z . square ( ) ; var d = this . x . sub ( a ) . mul ( 3 ) . mul ( this . x . add ( a ) ) ; a = d . square ( ) . subM ( b ) . subM ( b ) ; b = b . sub ( a ) . mul ( d ) . subM ( c ) ; c = this . y . add ( this . y ) . mul ( this . z ) ; return new sjcl . ecc . pointJac ( this . curve , a , b , c ) } , toAffine : function ( ) { if ( this . isIdentity ||
2010-10-08 04:42:19 +02:00
this . z . equals ( 0 ) ) return new sjcl . ecc . point ( this . curve ) ; var a = this . z . inverse ( ) , b = a . square ( ) ; return new sjcl . ecc . point ( this . curve , this . x . mul ( b ) . fullReduce ( ) , this . y . mul ( b . mul ( a ) ) . fullReduce ( ) ) } , mult : function ( a , b ) { if ( typeof a == "number" ) a = [ a ] ; else if ( a . limbs !== undefined ) a = a . normalize ( ) . limbs ; var c , d = ( new sjcl . ecc . point ( this . curve ) ) . toJac ( ) , e = b . multiples ( ) ; for ( b = a . length - 1 ; b >= 0 ; b -- ) for ( c = sjcl . bn . prototype . radix - 4 ; c >= 0 ; c -= 4 ) d = d . doubl ( ) . doubl ( ) . doubl ( ) . doubl ( ) . add ( e [ a [ b ] >> c & 15 ] ) ; return d } , mult2 : function ( a ,
b , c , d ) { if ( typeof a == "number" ) a = [ a ] ; else if ( a . limbs !== undefined ) a = a . normalize ( ) . limbs ; if ( typeof c == "number" ) c = [ c ] ; else if ( c . limbs !== undefined ) c = c . normalize ( ) . limbs ; var e , f = ( new sjcl . ecc . point ( this . curve ) ) . toJac ( ) ; b = b . multiples ( ) ; var g = d . multiples ( ) , h , j ; for ( d = Math . max ( a . length , c . length ) - 1 ; d >= 0 ; d -- ) { h = a [ d ] | 0 ; j = c [ d ] | 0 ; for ( e = sjcl . bn . prototype . radix - 4 ; e >= 0 ; e -= 4 ) f = f . doubl ( ) . doubl ( ) . doubl ( ) . doubl ( ) . add ( b [ h >> e & 15 ] ) . add ( g [ j >> e & 15 ] ) } return f } , isValid : function ( ) { var a = this . z . square ( ) , b = a . square ( ) ; a = b . mul ( a ) ;
return this . y . square ( ) . equals ( this . curve . b . mul ( a ) . add ( this . x . mul ( this . curve . a . mul ( b ) . add ( this . x . square ( ) ) ) ) ) } } ; sjcl . ecc . curve = function ( a , b , c , d , e , f ) { this . field = a ; this . r = a . prototype . modulus . sub ( b ) ; this . a = new a ( c ) ; this . b = new a ( d ) ; this . G = new sjcl . ecc . point ( this , new a ( e ) , new a ( f ) ) } ;
sjcl . ecc . curve . prototype . fromBits = function ( a ) { var b = sjcl . bitArray , c = this . field . prototype . exponent + 7 & - 8 ; p = new sjcl . ecc . point ( this , this . field . fromBits ( b . bitSlice ( a , 0 , c ) ) , this . field . fromBits ( b . bitSlice ( a , c , 2 * c ) ) ) ; if ( ! p . isValid ( ) ) throw new sjcl . exception . corrupt ( "not on the curve!" ) ; return p } ;
2010-10-08 04:02:59 +02:00
sjcl . ecc . curves = { c192 : new sjcl . ecc . curve ( sjcl . bn . prime . p192 , "0x662107c8eb94364e4b2dd7ce" , - 3 , "0x64210519e59c80e70fa7e9ab72243049feb8deecc146b9b1" , "0x188da80eb03090f67cbf20eb43a18800f4ff0afd82ff1012" , "0x07192b95ffc8da78631011ed6b24cdd573f977a11e794811" ) , c224 : new sjcl . ecc . curve ( sjcl . bn . prime . p224 , "0xe95c1f470fc1ec22d6baa3a3d5c4" , - 3 , "0xb4050a850c04b3abf54132565044b0b7d7bfd8ba270b39432355ffb4" , "0xb70e0cbd6bb4bf7f321390b94a03c1d356c21122343280d6115c1d21" , "0xbd376388b5f723fb4c22dfe6cd4375a05a07476444d5819985007e34" ) ,
c256 : new sjcl . ecc . curve ( sjcl . bn . prime . p256 , "0x4319055358e8617b0c46353d039cdaae" , - 3 , "0x5ac635d8aa3a93e7b3ebbd55769886bc651d06b0cc53b0f63bce3c3e27d2604b" , "0x6b17d1f2e12c4247f8bce6e563a440f277037d812deb33a0f4a13945d898c296" , "0x4fe342e2fe1a7f9b8ee7eb4a7c0f9e162bce33576b315ececbb6406837bf51f5" ) , c384 : new sjcl . ecc . curve ( sjcl . bn . prime . p384 , "0x389cb27e0bc8d21fa7e5f24cb74f58851313e696333ad68c" , - 3 , "0xb3312fa7e23ee7e4988e056be3f82d19181d9c6efe8141120314088f5013875ac656398d8a2ed19d2a85c8edd3ec2aef" , "0xaa87ca22be8b05378eb1c71ef320ad746e1d3b628ba79b9859f741e082542a385502f25dbf55296c3a545e3872760ab7" ,
"0x3617de4a96262c6f5d9e98bf9292dc29f8f41dbd289a147ce9da3113b5f0b8c00a60b1ce1d7e819d7a431d7c90ea0e5f" ) } ;
2010-10-08 04:42:19 +02:00
sjcl . ecc . Q = function ( a ) { sjcl . ecc [ a ] = { publicKey : function ( b , c ) { this . e = b ; this . Z = c instanceof Array ? b . fromBits ( c ) : c } , secretKey : function ( b , c ) { this . e = b ; this . S = c } , generateKeys : function ( b , c ) { if ( typeof b == "number" ) { b = sjcl . ecc . curves [ "c" + b ] ; if ( b === undefined ) throw new sjcl . exception . invalid ( "no such curve" ) ; } c = sjcl . bn . random ( b . r , c ) ; var d = b . G . mult ( c ) ; return { pub : new sjcl . ecc [ a ] . publicKey ( b , d ) , sec : new sjcl . ecc [ a ] . secretKey ( b , c ) } } } } ; sjcl . ecc . Q ( "elGamal" ) ;
2010-10-08 06:10:46 +02:00
sjcl . ecc . elGamal . publicKey . prototype = { kem : function ( a ) { a = sjcl . bn . random ( this . e . r , a ) ; var b = this . e . G . mult ( a ) . toBits ( ) ; return { key : sjcl . hash . sha256 . hash ( this . Z . mult ( a ) . toBits ( ) ) , tag : b } } } ; sjcl . ecc . elGamal . secretKey . prototype = { unkem : function ( a ) { return sjcl . hash . sha256 . hash ( this . e . fromBits ( a ) . mult ( this . S ) . toBits ( ) ) } } ; sjcl . ecc . Q ( "ecdsa" ) ;
sjcl . ecc . ecdsa . secretKey . prototype = { sign : function ( a , b ) { var c = this . e . r , d = c . bitLength ( ) ; b = this . e . G . mult ( kkkk = sjcl . bn . random ( c . sub ( 1 ) , b ) . add ( 1 ) ) . x . mod ( c ) ; a = sjcl . bn . fromBits ( a ) . add ( b . mul ( this . S ) ) . inverseMod ( c ) . mul ( kkkk ) . mod ( c ) ; return sjcl . bitArray . concat ( b . toBits ( d ) , a . toBits ( d ) ) } } ;
sjcl . ecc . ecdsa . publicKey . prototype = { verify : function ( a , b ) { var c = sjcl . bitArray , d = this . e . r , e = d . bitLength ( ) , f = sjcl . bn . fromBits ( c . bitSlice ( b , 0 , e ) ) ; b = sjcl . bn . fromBits ( c . bitSlice ( b , e , 2 * e ) ) ; a = sjcl . bn . fromBits ( a ) . mul ( b ) . mod ( d ) ; c = f . mul ( b ) . mod ( d ) ; a = this . e . G . mult2 ( a , c , this . Z ) . x ; c = sjcl . exception . corrupt ; if ( f . equals ( 0 ) || b . equals ( 0 ) || f . greaterEquals ( d ) || b . greaterEquals ( d ) || ! a . equals ( f ) ) throw new c ( "signature didn't check out" ) ; return true } } ;
