public async Task OnLogonChallenge(AuthLogonChallenge challenge)
{
Account = GrainFactory.GetGrain <IAccount>(challenge.account);
if (!(await Account.IsValid()))
{
await SendAuthError(AuthError.NoAccount);
return;
}
string password = await Account.GetPassword();
Shared.BigInteger pass = new Shared.BigInteger(password, 16);
//test
string passwordPlain = await Account.GetPasswordPlain();
string SRPHash = challenge.account.ToUpper() + ":" + passwordPlain.ToUpper();
var SRPHashBytes = Encoding.UTF8.GetBytes(SRPHash);
var SRPCreds = BigInt.Hash(SRPHashBytes); //The bytes were g
BigInteger x = BigInt.Hash(s, SRPCreds);
v = g.ModPow(x, N);
b = new Shared.BigInteger(new Random(), 160);
Shared.BigInteger gmod = g.ModPow(b, N);
if (gmod < 0)
{
gmod += N;
}
B = ((v * 3) + gmod) % N;
if (B < 0)
{
B += N;
}
Shared.BigInteger unk = new Shared.BigInteger(new Random(), 128);
//I'm sure this is used for matrix proofing (2 factor auth)
PacketOut rtn = new PacketOut(AuthOp.AUTH_LOGON_CHALLENGE);
rtn.Write((byte)AuthError.Success);
rtn.Write((byte)0); //unknown
rtn.WriteBigInt(B, 32);
rtn.WriteBigIntLength(g, 1);
rtn.WriteBigIntLength(N, 32);
rtn.WriteBigInt(s, 32);
rtn.WriteBigInt(unk, 16);
rtn.Write((byte)0); //security flag
await SendPacket(rtn); //test
}