SHA512 Javascript implemention portage à Actionscript
https://stackoverflow.com/questions/1267873
-
13-09-2019 - |
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Je me demande si quelqu'un peut me aider dans le portage d'un implemention SHA-512 en Javascript pour Actionscript. Étant donné que Javascript et Actionscript partagent la même origine, je pense que le portage sera facile pour les gens qui sont habitués à Actionscript.
Le code pour SHA512 en javascript peut être trouvé ici:
http://pajhome.org.uk/crypt/md5/sha512.html
Merci.
La solution
Voici le code porté par moi. Le code est séparé entre deux fichiers Int64.as et Sha512.as, tous les deux appartiennent à l'ensemble com.crypto.
com / crypto / 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);
}
}
}
com / crypto / 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 ? "0123456789ABCDEF" : "0123456789abcdef";
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 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
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, 0x2db43210),
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;
}
}
}
Désolé, je ne pouvais pas trouver un bon endroit pour les télécharger.
Autres conseils
Je ne suis pas en mesure de faire un commentaire sur ce qui précède (où cela devrait être), mais il y a une erreur avec quelques signatures en utilisant ce code en raison du comportement d'imagination de Actionscript quand annexant le caractère nul à une chaîne (il ne ).
Pour une solution rapide et sale à l'hexagone HMAC codé qui est ce que je me sers, j'ai changé la fonction hex_hmac_sha512 (juste pour le codage appelle) et ajouté une fonction binb2hex comme suit:
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 ? "0123456789ABCDEF" : "0123456789abcdef";
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;
}
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