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Fix offline password authentication

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This commit is contained in:
Graham Eades
2018-11-28 14:48:07 +00:00
parent 083a6a5cea
commit 29ebc61627
3 changed files with 24 additions and 15 deletions
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13
frontend/beta/js/Clipperz/PM/Proxy/Proxy.Offline.DataStore.js
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@@ -354,7 +354,8 @@ Clipperz.PM.Proxy.Offline.DataStore.prototype = MochiKit.Base.update(null, {
this.set_C(someParameters.parameters.C);
this.set_b(new Clipperz.Crypto.BigInt(randomBytes, 16));
v = new Clipperz.Crypto.BigInt(this.userData()['v'], 16);
this.set_B((Clipperz.Crypto.SRP.k().multiply(v)).add(Clipperz.Crypto.SRP.g().powerModule(this.b(), Clipperz.Crypto.SRP.n())));
//this.set_B((Clipperz.Crypto.SRP.k().multiply(v)).add(Clipperz.Crypto.SRP.g().powerModule(this.b(), Clipperz.Crypto.SRP.n())));
this.set_B((Clipperz.Crypto.SRP.k().multiply(v)).add(Clipperz.Crypto.SRP.g().powerModule(this.b(), Clipperz.Crypto.SRP.n())).module(Clipperz.Crypto.SRP.n()));
this.set_A(someParameters.parameters.A);
@@ -363,7 +364,7 @@ Clipperz.PM.Proxy.Offline.DataStore.prototype = MochiKit.Base.update(null, {
nextTollRequestType = 'CONNECT';
} else if (someParameters.message == "credentialCheck") {
var v, u, s, S, A, K, M1;
var v, u, s, S, A, K, M1, KK;
var stringHash = function (aValue) {
return Clipperz.PM.Crypto.encryptingFunctions.versions[someParameters.version].hash(new Clipperz.ByteArray(aValue)).toHexString().substring(2);
};
@@ -373,9 +374,11 @@ Clipperz.PM.Proxy.Offline.DataStore.prototype = MochiKit.Base.update(null, {
A = new Clipperz.Crypto.BigInt(this.A(), 16);
u = new Clipperz.Crypto.BigInt(Clipperz.PM.Crypto.encryptingFunctions.versions[someParameters.version].hash(new Clipperz.ByteArray(A.asString(10) + this.B().asString(10))).toHexString(), 16);
s = new Clipperz.Crypto.BigInt(this.userData()['s'], 16);
S = (A.multiply(v.powerModule(u, Clipperz.Crypto.SRP.n()))).powerModule(this.b(), Clipperz.Crypto.SRP.n());
//S = (A.multiply(v.powerModule(u, Clipperz.Crypto.SRP.n()))).powerModule(this.b(), Clipperz.Crypto.SRP.n());
S = v.powerModule(u, Clipperz.Crypto.SRP.n()).multiply(A).module(Clipperz.Crypto.SRP.n()).powerModule(this.b(), Clipperz.Crypto.SRP.n())
K = stringHash(S.asString(10));
KK = new Clipperz.Crypto.BigInt(K,16);
M1 = stringHash(
"597626870978286801440197562148588907434001483655788865609375806439877501869636875571920406529" +
@@ -383,7 +386,7 @@ Clipperz.PM.Proxy.Offline.DataStore.prototype = MochiKit.Base.update(null, {
s.asString(10) +
A.asString(10) +
this.B().asString(10) +
K
KK.asString(10)
);
if (someParameters.parameters.M1 == M1) {
var M2;
@@ -823,4 +826,4 @@ Clipperz.PM.Proxy.Offline.DataStore.prototype = MochiKit.Base.update(null, {
Clipperz.PM.Proxy.Offline.DataStore['exception'] = {
'ReadOnly': new MochiKit.Base.NamedError("Clipperz.PM.Proxy.Offline.DataStore.exception.ReadOnly")
};
};