Портирование SHA512 Выполнение Javascript для Actionscript

Question

Мне интересно, может ли кто-нибудь помочь мне портировать реализацию SHA-512 в Javascript в ActionScript. Поскольку Javascript и ActionScript имеют одинаковое происхождение, я думаю, что перенос будет легко для людей, которые используются в ActionScript.

Код для SHA512 в JavaScript можно найти здесь:

http://pajhome.org.uk/crypt/md5/sha512.html

Спасибо.

Answer 1

Вот код, портированный мной. Код разделяется между двумя файлами Int64.as и Sha512.as, оба из них принадлежат пакет com.crypto.

ком/криптография/Int64.as

/* 
* Int64 for ActionScript 
* Ported by: AAA 
* Ported from: See below 
*/ 

/* 
* A JavaScript implementation of the Secure Hash Algorithm, SHA-512, as defined 
* in FIPS 180-2 
* Version 2.2 Copyright Anonymous Contributor, Paul Johnston 2000 - 2009. 
* Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet 
* Distributed under the BSD License 
* See http://pajhome.org.uk/crypt/md5 for details. 
*/ 

package com.crypto { 
    public class Int64 { 
     public var h; 
     public var l; 

     public function Int64(h, l) { 
      this.h = h; 
      this.l = l; 
     } 

     public function copy(src) { 
      this.h = src.h; 
      this.l = src.l; 
     } 

     public function rrot(x, shift) { 
      this.l = (x.l >>> shift) | (x.h << (32-shift)); 
      this.h = (x.h >>> shift) | (x.l << (32-shift)); 
     } 

     public function revrrot(x, shift) { 
      this.l = (x.h >>> shift) | (x.l << (32-shift)); 
      this.h = (x.l >>> shift) | (x.h << (32-shift)); 
     } 

     public function shr(x, shift) { 
      this.l = (x.l >>> shift) | (x.h << (32-shift)); 
      this.h = (x.h >>> shift); 
     } 

     public function add(x, y) { 
      var w0 = (x.l & 0xffff) + (y.l & 0xffff); 
      var w1 = (x.l >>> 16) + (y.l >>> 16) + (w0 >>> 16); 
      var w2 = (x.h & 0xffff) + (y.h & 0xffff) + (w1 >>> 16); 
      var w3 = (x.h >>> 16) + (y.h >>> 16) + (w2 >>> 16); 
      this.l = (w0 & 0xffff) | (w1 << 16); 
      this.h = (w2 & 0xffff) | (w3 << 16); 
     } 

     public function add4(a, b, c, d) { 
      var w0 = (a.l & 0xffff) + (b.l & 0xffff) + (c.l & 0xffff) + (d.l & 0xffff); 
      var w1 = (a.l >>> 16) + (b.l >>> 16) + (c.l >>> 16) + (d.l >>> 16) + (w0 >>> 16); 
      var w2 = (a.h & 0xffff) + (b.h & 0xffff) + (c.h & 0xffff) + (d.h & 0xffff) + (w1 >>> 16); 
      var w3 = (a.h >>> 16) + (b.h >>> 16) + (c.h >>> 16) + (d.h >>> 16) + (w2 >>> 16); 
      this.l = (w0 & 0xffff) | (w1 << 16); 
      this.h = (w2 & 0xffff) | (w3 << 16); 
     } 

     public function add5(a, b, c, d, e) { 
      var w0 = (a.l & 0xffff) + (b.l & 0xffff) + (c.l & 0xffff) + (d.l & 0xffff) + (e.l & 0xffff); 
      var w1 = (a.l >>> 16) + (b.l >>> 16) + (c.l >>> 16) + (d.l >>> 16) + (e.l >>> 16) + (w0 >>> 16); 
      var w2 = (a.h & 0xffff) + (b.h & 0xffff) + (c.h & 0xffff) + (d.h & 0xffff) + (e.h & 0xffff) + (w1 >>> 16); 
      var w3 = (a.h >>> 16) + (b.h >>> 16) + (c.h >>> 16) + (d.h >>> 16) + (e.h >>> 16) + (w2 >>> 16); 
      this.l = (w0 & 0xffff) | (w1 << 16); 
      this.h = (w2 & 0xffff) | (w3 << 16); 
     } 
    } 
} 

ком/криптография/Sha512.as

/* 
* SHA-512 for ActionScript 
* Ported by: AAA 
* Ported from: See below 
*/ 

/* 
* A JavaScript implementation of the Secure Hash Algorithm, SHA-512, as defined 
* in FIPS 180-2 
* Version 2.2 Copyright Anonymous Contributor, Paul Johnston 2000 - 2009. 
* Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet 
* Distributed under the BSD License 
* See http://pajhome.org.uk/crypt/md5 for details. 
*/ 

package com.crypto { 
    public class Sha512 { 
     public var hexcase = 0; 
     public var b64pad = ""; 

     public function Sha512() { 
     } 

     public function hex_sha512(s) { return rstr2hex(rstr_sha512(str2rstr_utf8(s))); } 
     public function b64_sha512(s) { return rstr2b64(rstr_sha512(str2rstr_utf8(s))); } 
     public function any_sha512(s, e) { return rstr2any(rstr_sha512(str2rstr_utf8(s)), e);} 
     public function hex_hmac_sha512(k, d) { return rstr2hex(rstr_hmac_sha512(str2rstr_utf8(k), str2rstr_utf8(d))); } 
     public function b64_hmac_sha512(k, d) { return rstr2b64(rstr_hmac_sha512(str2rstr_utf8(k), str2rstr_utf8(d))); } 
     public function any_hmac_sha512(k, d, e) { return rstr2any(rstr_hmac_sha512(str2rstr_utf8(k), str2rstr_utf8(d)), e);} 

     public function sha512_vm_test() { 
      return hex_sha512("abc").toLowerCase() == "ddaf35a193617abacc417349ae20413112e6fa4e89a97ea20a9eeee64b55d39a" 
                + "2192992a274fc1a836ba3c23a3feebbd454d4423643ce80e2a9ac94fa54ca49f"; 
     } 

     private function rstr_sha512(s) { 
      return binb2rstr(binb_sha512(rstr2binb(s), s.length * 8)); 
     } 

     private function rstr_hmac_sha512(key, data) { 
      var bkey = rstr2binb(key); 
      if(bkey.length > 32) bkey = binb_sha512(bkey, key.length * 8); 

      var ipad = new Array(32) 
      var opad = new Array(32); 
      for(var i = 0; i < 32; i++) { 
       ipad[i] = bkey[i]^0x36363636; 
       opad[i] = bkey[i]^0x5C5C5C5C; 
      } 

      var hash = binb_sha512(ipad.concat(rstr2binb(data)), 1024 + data.length * 8); 
      return binb2rstr(binb_sha512(opad.concat(hash), 1024 + 512)); 
     } 

     private function rstr2hex(input) { 
      try { hexcase } catch(e) { hexcase=0; } 
      var hex_tab = hexcase ? "ABCDEF" : "abcdef"; 
      var output = ""; 
      var x; 
      for(var i = 0; i < input.length; i++) { 
       x = input.charCodeAt(i); 
       output += hex_tab.charAt((x >>> 4) & 0x0F) + hex_tab.charAt(x & 0x0F); 
      } 
      return output; 
     } 

     private function rstr2b64(input) 
     { 
      try { b64pad } catch(e) { b64pad=''; } 
      var tab = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz/"; 
      var output = ""; 
      var len = input.length; 
      for(var i = 0; i < len; i += 3) { 
       var triplet = (input.charCodeAt(i) << 16) 
       | (i + 1 < len ? input.charCodeAt(i+1) << 8 : 0) 
       | (i + 2 < len ? input.charCodeAt(i+2)  : 0); 
       for(var j = 0; j < 4; j++) { 
        if(i * 8 + j * 6 > input.length * 8) output += b64pad; 
        else output += tab.charAt((triplet >>> 6*(3-j)) & 0x3F); 
       } 
      } 
      return output; 
     } 

     private function rstr2any(input, encoding) { 
      var divisor = encoding.length; 
      var i, j, q, x, quotient; 

      var dividend = new Array(Math.ceil(input.length/2)); 
      for(i = 0; i < dividend.length; i++) { 
       dividend[i] = (input.charCodeAt(i * 2) << 8) | input.charCodeAt(i * 2 + 1); 
      } 

      var full_length = Math.ceil(input.length * 8/(Math.log(encoding.length)/Math.log(2))); 
      var remainders = new Array(full_length); 
      for(j = 0; j < full_length; j++) { 
       quotient = new Array(); 
       x = 0; 
       for(i = 0; i < dividend.length; i++) { 
        x = (x << 16) + dividend[i]; 
        q = Math.floor(x/divisor); 
        x -= q * divisor; 
        if(quotient.length > 0 || q > 0) 
         quotient[quotient.length] = q; 
       } 
       remainders[j] = x; 
       dividend = quotient; 
      } 

      var output = ""; 
      for(i = remainders.length - 1; i >= 0; i--) 
       output += encoding.charAt(remainders[i]); 
      return output; 
     } 

     private function str2rstr_utf8(input) { 
      var output = ""; 
      var i = -1; 
      var x, y; 

      while(++i < input.length) { 
       x = input.charCodeAt(i); 
       y = i + 1 < input.length ? input.charCodeAt(i + 1) : 0; 
       if(0xD800 <= x && x <= 0xDBFF && 0xDC00 <= y && y <= 0xDFFF) { 
        x = 0x10000 + ((x & 0x03FF) << 10) + (y & 0x03FF); 
        i++; 
       } 

       if(x <= 0x7F) 
        output += String.fromCharCode(x); 
       else if(x <= 0x7FF) 
        output += String.fromCharCode(0xC0 | ((x >>> 6) & 0x1F), 0x80 | (x   & 0x3F)); 
       else if(x <= 0xFFFF) 
        output += String.fromCharCode(0xE0 | ((x >>> 12) & 0x0F), 
            0x80 | ((x >>> 6) & 0x3F), 
            0x80 | (x   & 0x3F)); 
       else if(x <= 0x1FFFFF) 
        output += String.fromCharCode(0xF0 | ((x >>> 18) & 0x07), 
            0x80 | ((x >>> 12) & 0x3F), 
            0x80 | ((x >>> 6) & 0x3F), 
            0x80 | (x   & 0x3F)); 
      } 

      return output; 
     } 

     private function str2rstr_utf16le(input) { 
      var output = ""; 
      for(var i = 0; i < input.length; i++) 
       output += String.fromCharCode(input.charCodeAt(i)  & 0xFF, 
            (input.charCodeAt(i) >>> 8) & 0xFF); 
      return output; 
     } 

     private function str2rstr_utf16be(input) { 
      var output = ""; 
      for(var i = 0; i < input.length; i++) 
       output += String.fromCharCode((input.charCodeAt(i) >>> 8) & 0xFF, 
            input.charCodeAt(i)  & 0xFF); 
      return output; 
     } 

     private function rstr2binb(input) { 
      var output = new Array(input.length >> 2); 
      for(var i = 0; i < output.length; i++) 
       output[i] = 0; 
      for(var i = 0; i < input.length * 8; i += 8) 
       output[i>>5] |= (input.charCodeAt(i/8) & 0xFF) << (24 - i % 32); 
      return output; 
     } 

     private function binb2rstr(input) { 
      var output = ""; 
      for(var i = 0; i < input.length * 32; i += 8) 
       output += String.fromCharCode((input[i>>5] >>> (24 - i % 32)) & 0xFF); 
      return output; 
     } 

     var sha512_k; 

     private function binb_sha512(x, len) { 
      if(sha512_k == undefined) { 
       sha512_k = new Array(
        new Int64(0x428a2f98, -685199838), new Int64(0x71374491, 0x23ef65cd), 
        new Int64(-1245643825, -330482897), new Int64(-373957723, -2121671748), 
        new Int64(0x3956c25b, -213338824), new Int64(0x59f111f1, -1241133031), 
        new Int64(-1841331548, -1357295717), new Int64(-1424204075, -630357736), 
        new Int64(-670586216, -1560083902), new Int64(0x12835b01, 0x45706fbe), 
        new Int64(0x243185be, 0x4ee4b28c), new Int64(0x550c7dc3, -704662302), 
        new Int64(0x72be5d74, -226784913), new Int64(-2132889090, 0x3b1696b1), 
        new Int64(-1680079193, 0x25c71235), new Int64(-1046744716, -815192428), 
        new Int64(-459576895, -1628353838), new Int64(-272742522, 0x384f25e3), 
        new Int64(0xfc19dc6, -1953704523), new Int64(0x240ca1cc, 0x77ac9c65), 
        new Int64(0x2de92c6f, 0x592b0275), new Int64(0x4a7484aa, 0x6ea6e483), 
        new Int64(0x5cb0a9dc, -1119749164), new Int64(0x76f988da, -2096016459), 
        new Int64(-1740746414, -295247957), new Int64(-1473132947, 0x2db), 
        new Int64(-1341970488, -1728372417), new Int64(-1084653625, -1091629340), 
        new Int64(-958395405, 0x3da88fc2), new Int64(-710438585, -1828018395), 
        new Int64(0x6ca6351, -536640913), new Int64(0x14292967, 0xa0e6e70), 
        new Int64(0x27b70a85, 0x46d22ffc), new Int64(0x2e1b2138, 0x5c26c926), 
        new Int64(0x4d2c6dfc, 0x5ac42aed), new Int64(0x53380d13, -1651133473), 
        new Int64(0x650a7354, -1951439906), new Int64(0x766a0abb, 0x3c77b2a8), 
        new Int64(-2117940946, 0x47edaee6), new Int64(-1838011259, 0x1482353b), 
        new Int64(-1564481375, 0x4cf10364), new Int64(-1474664885, -1136513023), 
        new Int64(-1035236496, -789014639), new Int64(-949202525, 0x654be30), 
        new Int64(-778901479, -688958952), new Int64(-694614492, 0x5565a910), 
        new Int64(-200395387, 0x5771202a), new Int64(0x106aa070, 0x32bbd1b8), 
        new Int64(0x19a4c116, -1194143544), new Int64(0x1e376c08, 0x5141ab53), 
        new Int64(0x2748774c, -544281703), new Int64(0x34b0bcb5, -509917016), 
        new Int64(0x391c0cb3, -976659869), new Int64(0x4ed8aa4a, -482243893), 
        new Int64(0x5b9cca4f, 0x7763e373), new Int64(0x682e6ff3, -692930397), 
        new Int64(0x748f82ee, 0x5defb2fc), new Int64(0x78a5636f, 0x43172f60), 
        new Int64(-2067236844, -1578062990), new Int64(-1933114872, 0x1a6439ec), 
        new Int64(-1866530822, 0x23631e28), new Int64(-1538233109, -561857047), 
        new Int64(-1090935817, -1295615723), new Int64(-965641998, -479046869), 
        new Int64(-903397682, -366583396), new Int64(-779700025, 0x21c0c207), 
        new Int64(-354779690, -840897762), new Int64(-176337025, -294727304), 
        new Int64(0x6f067aa, 0x72176fba), new Int64(0xa637dc5, -1563912026), 
        new Int64(0x113f9804, -1090974290), new Int64(0x1b710b35, 0x131c471b), 
        new Int64(0x28db77f5, 0x23047d84), new Int64(0x32caab7b, 0x40c72493), 
        new Int64(0x3c9ebe0a, 0x15c9bebc), new Int64(0x431d67c4, -1676669620), 
        new Int64(0x4cc5d4be, -885112138), new Int64(0x597f299c, -60457430), 
        new Int64(0x5fcb6fab, 0x3ad6faec), new Int64(0x6c44198c, 0x4a475817)); 
      } 

      var H = new Array(
       new Int64(0x6a09e667, -205731576), 
       new Int64(-1150833019, -2067093701), 
       new Int64(0x3c6ef372, -23791573), 
       new Int64(-1521486534, 0x5f1d36f1), 
       new Int64(0x510e527f, -1377402159), 
       new Int64(-1694144372, 0x2b3e6c1f), 
       new Int64(0x1f83d9ab, -79577749), 
       new Int64(0x5be0cd19, 0x137e2179)); 

      var T1 = new Int64(0, 0), 
      T2 = new Int64(0, 0), 
      a = new Int64(0,0), 
      b = new Int64(0,0), 
      c = new Int64(0,0), 
      d = new Int64(0,0), 
      e = new Int64(0,0), 
      f = new Int64(0,0), 
      g = new Int64(0,0), 
      h = new Int64(0,0), 

      s0 = new Int64(0, 0), 
      s1 = new Int64(0, 0), 
      Ch = new Int64(0, 0), 
      Maj = new Int64(0, 0), 
      r1 = new Int64(0, 0), 
      r2 = new Int64(0, 0), 
      r3 = new Int64(0, 0); 
      var j, i; 
      var W = new Array(80); 
      for(i=0; i<80; i++) 
       W[i] = new Int64(0, 0); 

      x[len >> 5] |= 0x80 << (24 - (len & 0x1f)); 
      x[((len + 128 >> 10)<< 5) + 31] = len; 

      for(i = 0; i<x.length; i+=32) { 
       a.copy(H[0]); 
       b.copy(H[1]); 
       c.copy(H[2]); 
       d.copy(H[3]); 
       e.copy(H[4]); 
       f.copy(H[5]); 
       g.copy(H[6]); 
       h.copy(H[7]); 

       for(j=0; j<16; j++) { 
        W[j].h = x[i + 2*j]; 
        W[j].l = x[i + 2*j + 1]; 
       } 

       for(j=16; j<80; j++) { 
        r1.rrot(W[j-2], 19); 
        r2.revrrot(W[j-2], 29); 
        r3.shr(W[j-2], 6); 
        s1.l = r1.l^r2.l^r3.l; 
        s1.h = r1.h^r2.h^r3.h; 

        r1.rrot(W[j-15], 1); 
        r2.rrot(W[j-15], 8); 
        r3.shr(W[j-15], 7); 
        s0.l = r1.l^r2.l^r3.l; 
        s0.h = r1.h^r2.h^r3.h; 

        W[j].add4(s1, W[j-7], s0, W[j-16]); 
       } 

       for(j = 0; j < 80; j++) { 
        Ch.l = (e.l & f.l)^(~e.l & g.l); 
        Ch.h = (e.h & f.h)^(~e.h & g.h); 

        r1.rrot(e, 14); 
        r2.rrot(e, 18); 
        r3.revrrot(e, 9); 
        s1.l = r1.l^r2.l^r3.l; 
        s1.h = r1.h^r2.h^r3.h; 

        r1.rrot(a, 28); 
        r2.revrrot(a, 2); 
        r3.revrrot(a, 7); 
        s0.l = r1.l^r2.l^r3.l; 
        s0.h = r1.h^r2.h^r3.h; 

        Maj.l = (a.l & b.l)^(a.l & c.l)^(b.l & c.l); 
        Maj.h = (a.h & b.h)^(a.h & c.h)^(b.h & c.h); 

        T1.add5(h, s1, Ch, sha512_k[j], W[j]); 
        T2.add(s0, Maj); 

        h.copy(g); 
        g.copy(f); 
        f.copy(e); 
        e.add(d, T1); 
        d.copy(c); 
        c.copy(b); 
        b.copy(a); 
        a.add(T1, T2); 
       } 

       H[0].add(H[0], a); 
       H[1].add(H[1], b); 
       H[2].add(H[2], c); 
       H[3].add(H[3], d); 
       H[4].add(H[4], e); 
       H[5].add(H[5], f); 
       H[6].add(H[6], g); 
       H[7].add(H[7], h); 
      } 

      var hash = new Array(16); 
      for(i=0; i<8; i++) { 
       hash[2*i] = H[i].h; 
       hash[2*i + 1] = H[i].l; 
      } 

      return hash; 
     } 
    } 
} 

К сожалению, я не мог найти подходящее место, чтобы загрузить их.

Answer 2

Я не могу опубликовать комментарий к предыдущему (где это должно быть), но при использовании этого кода возникает ошибка с некоторыми сигнатурами из-за творческого поведения ActionScript при добавлении нулевого символа в строку (это не так) т).

Для быстрого и грязного исправления в шестнадцатеричном HMAC, который является то, что я использую, я изменил функцию hex_hmac_sha512 (только для кодирования она называет) и добавлена ​​функция binb2hex следующим образом:

private function hex_hmac_sha512(key, data) { 
     key = str2rstr_utf8(key); 
     data = str2rstr_utf8(data); 
     var bkey = rstr2binb(key); 
     if(bkey.length > 32) bkey = binb_sha512(bkey, key.length * 8); 

     var ipad = new Array(32) 
     var opad = new Array(32); 
     for(var i = 0; i < 32; i++) { 
       ipad[i] = bkey[i]^0x36363636; 
       opad[i] = bkey[i]^0x5C5C5C5C; 
     } 

     var hash = binb_sha512(ipad.concat(rstr2binb(data)), 1024 + data.length * 8); 
     return binb2hex(binb_sha512(opad.concat(hash), 1024 + 512)); 
} 

private function binb2hex(input) { 
    var hex_tab = hexcase ? "ABCDEF" : "abcdef";   
    var output = ""; 
    for(var i = 0; i < input.length * 32; i += 8){ 
      var schar = (input[i>>5] >>> (24 - i % 32)) & 0xFF; 
      output += hex_tab.charAt((schar >>> 4) & 0x0F) + hex_tab.charAt(schar & 0x0F);    
    } 
    return output;  
}