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Updated hash

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This commit is contained in:
aunxx 2016-06-05 14:49:30 +01:00
parent eb0fb97e0b
commit f683a7e43e
2 changed files with 84 additions and 4 deletions
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45
frontend/delta/js/Clipperz/Crypto/SRP.js
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@ -56,6 +56,8 @@ MochiKit.Base.update(Clipperz.Crypto.SRP, {
return Clipperz.Crypto.SRP._n;
},
//-------------------------------------------------------------------------
'g': function() {
if (Clipperz.Crypto.SRP._g == null) {
Clipperz.Crypto.SRP._g = new Clipperz.Crypto.BigInt(2); // eventually 5 (as suggested on the Diffi-Helmann documentation)
@ -65,9 +67,14 @@ MochiKit.Base.update(Clipperz.Crypto.SRP, {
},
'k': function() {
//k = H(N, g)
if (Clipperz.Crypto.SRP._k == null) {
// Clipperz.Crypto.SRP._k = new Clipperz.Crypto.BigInt(this.stringHash(this.n().asString() + this.g().asString()), 16);
Clipperz.Crypto.SRP._k = new Clipperz.Crypto.BigInt("64398bff522814e306a97cb9bfc4364b7eed16a8c17c5208a40a2bad2933c8e", 16);
// This is a fixed hash derived from a hash of N and G
// Following hash for just AES256
// Clipperz.Crypto.SRP._k = new Clipperz.Crypto.BigInt("64398bff522814e306a97cb9bfc4364b7eed16a8c17c5208a40a2bad2933c8e", 16);
// Following hash for dual AES256
Clipperz.Crypto.SRP._k = new Clipperz.Crypto.BigInt("23059873679103356965010473015094804246238452944122574891019568752064785140295", 10);
}
return Clipperz.Crypto.SRP._k;
@ -219,10 +226,43 @@ Clipperz.Crypto.SRP.Connection.prototype = MochiKit.Base.update(null, {
bigint = Clipperz.Crypto.BigInt;
srp = Clipperz.Crypto.SRP;
// S can be negative. This breaks as the BigInt Library is unsigned
this._S = bigint.powerModule( bigint.subtract( bigint.multiply(Clipperz.Crypto.SRP.k(),bigint.powerModule(srp.g(), this.x(), srp.n())), this.B()), bigint.add(this.a(), bigint.multiply(this.u(), this.x())),srp.n() );
// var tmp_B = new BigInteger(this.B());
// var tmp_k = new BigInteger(Clipperz.Crypto.SRP.k());
// var tmp_g = new BigInteger(srp.g());
// var tmp_x = new BigInteger(this.x());
// var tmp_a = new BigInteger(this.a());
// var tmp_n = new BigInteger(srp.n());
// var tmp_u = new BigInteger(this.u());
//
// var tmp_S1 = new BigInteger(tmp_B.subtract(tmp_k.multiply(tmp_g.modPow(tmp_x,tmp_n))));
// var tmp_S2 = new BigInteger(tmp_a.add(tmp_u.multiply(tmp_x)));
// var tmp_S = new BigInteger(tmp_S1.modPow(tmp_S2,tmp_n));
// if (tmp_S.isNegative() == true ) {
// tmp_S = tmp_S.add(srp.n());
// }
//console.log("_B", tmp_B.toString());
//console.log("_k", tmp_k.toString());
//console.log("_g", tmp_g.toString());
//console.log("_x", tmp_x.toString());
//console.log("_a", tmp_a.toString());
//console.log("_n", tmp_n.toString());
//console.log("_u", tmp_u.toString());
//console.log("S1", tmp_S1.toString());
//console.log("S2", tmp_S2.toString());
//console.log("S-", tmp_S.toString());
}
//this._S= Clipperz.Crypto.BigInt(tmp_S.toString(),10);
return this._S;
},
@ -351,7 +391,8 @@ Clipperz.Crypto.SRP.Connection.prototype = MochiKit.Base.update(null, {
var result;
//result = this.hash(new Clipperz.ByteArray(aValue)).toHexString().substring(2);
result = Clipperz.Crypto.SHA.sha256( new Clipperz.ByteArray(aValue)).toHexString().substring(2);
//result = Clipperz.Crypto.SHA.sha256( new Clipperz.ByteArray(aValue)).toHexString().substring(2);
result = Clipperz.Crypto.SHA.sha_d256( new Clipperz.ByteArray(aValue)).toHexString().substring(2);
return result;
},

43
frontend/gamma/js/Clipperz/Crypto/SRP.js
View File

@ -67,9 +67,14 @@ MochiKit.Base.update(Clipperz.Crypto.SRP, {
},
'k': function() {
//k = H(N, g)
if (Clipperz.Crypto.SRP._k == null) {
// Clipperz.Crypto.SRP._k = new Clipperz.Crypto.BigInt(this.stringHash(this.n().asString() + this.g().asString()), 16);
Clipperz.Crypto.SRP._k = new Clipperz.Crypto.BigInt("64398bff522814e306a97cb9bfc4364b7eed16a8c17c5208a40a2bad2933c8e", 16);
// This is a fixed hash derived from a hash of N and G
// Following hash for just AES256
// Clipperz.Crypto.SRP._k = new Clipperz.Crypto.BigInt("64398bff522814e306a97cb9bfc4364b7eed16a8c17c5208a40a2bad2933c8e", 16);
// Following hash for dual AES256
Clipperz.Crypto.SRP._k = new Clipperz.Crypto.BigInt("23059873679103356965010473015094804246238452944122574891019568752064785140295", 10);
}
return Clipperz.Crypto.SRP._k;
@ -221,10 +226,43 @@ Clipperz.Crypto.SRP.Connection.prototype = MochiKit.Base.update(null, {
bigint = Clipperz.Crypto.BigInt;
srp = Clipperz.Crypto.SRP;
// S can be negative. This breaks as the BigInt Library is unsigned
this._S = bigint.powerModule( bigint.subtract( bigint.multiply(Clipperz.Crypto.SRP.k(),bigint.powerModule(srp.g(), this.x(), srp.n())), this.B()), bigint.add(this.a(), bigint.multiply(this.u(), this.x())),srp.n() );
// var tmp_B = new BigInteger(this.B());
// var tmp_k = new BigInteger(Clipperz.Crypto.SRP.k());
// var tmp_g = new BigInteger(srp.g());
// var tmp_x = new BigInteger(this.x());
// var tmp_a = new BigInteger(this.a());
// var tmp_n = new BigInteger(srp.n());
// var tmp_u = new BigInteger(this.u());
//
// var tmp_S1 = new BigInteger(tmp_B.subtract(tmp_k.multiply(tmp_g.modPow(tmp_x,tmp_n))));
// var tmp_S2 = new BigInteger(tmp_a.add(tmp_u.multiply(tmp_x)));
// var tmp_S = new BigInteger(tmp_S1.modPow(tmp_S2,tmp_n));
// if (tmp_S.isNegative() == true ) {
// tmp_S = tmp_S.add(srp.n());
// }
//console.log("_B", tmp_B.toString());
//console.log("_k", tmp_k.toString());
//console.log("_g", tmp_g.toString());
//console.log("_x", tmp_x.toString());
//console.log("_a", tmp_a.toString());
//console.log("_n", tmp_n.toString());
//console.log("_u", tmp_u.toString());
//console.log("S1", tmp_S1.toString());
//console.log("S2", tmp_S2.toString());
//console.log("S-", tmp_S.toString());
}
//this._S= Clipperz.Crypto.BigInt(tmp_S.toString(),10);
return this._S;
},
@ -353,7 +391,8 @@ Clipperz.Crypto.SRP.Connection.prototype = MochiKit.Base.update(null, {
var result;
//result = this.hash(new Clipperz.ByteArray(aValue)).toHexString().substring(2);
result = Clipperz.Crypto.SHA.sha256( new Clipperz.ByteArray(aValue)).toHexString().substring(2);
//result = Clipperz.Crypto.SHA.sha256( new Clipperz.ByteArray(aValue)).toHexString().substring(2);
result = Clipperz.Crypto.SHA.sha_d256( new Clipperz.ByteArray(aValue)).toHexString().substring(2);
return result;
},