public static OutgoingAuthenticationPacket BuildAuthenticationLogOnChallengeSuccess(BigInteger srpPublicB, BigInteger srpGenerator, BigInteger srpModulus,
BigInteger srpSalt, ExtraSecurityFlags extraFlags = ExtraSecurityFlags.None, bool immediateDisconnect = false)
{
Contract.Requires(srpPublicB != null);
Contract.Requires(srpPublicB.ByteLength == WowAuthenticationParameters.KeySize);
Contract.Requires(srpGenerator != null);
Contract.Requires(srpGenerator.ByteLength == WowAuthenticationParameters.GeneratorSize);
Contract.Requires(srpModulus != null);
Contract.Requires(srpModulus.ByteLength == WowAuthenticationParameters.KeySize);
Contract.Requires(srpSalt != null);
Contract.Requires(srpSalt.ByteLength == WowAuthenticationParameters.KeySize);
Contract.Ensures(Contract.Result<OutgoingAuthenticationPacket>() != null);
var packet = new OutgoingAuthenticationPacket(GruntOpCode.AuthenticationLogOnChallenge);
packet.Write(immediateDisconnect);
packet.Write((byte)AuthenticationResult.Success);
packet.Write(srpPublicB, WowAuthenticationParameters.KeySize);
packet.Write(srpGenerator, WowAuthenticationParameters.GeneratorSize, true);
packet.Write(srpModulus, WowAuthenticationParameters.KeySize, true);
packet.Write(srpSalt, WowAuthenticationParameters.KeySize);
packet.Write(new byte[Password.MD5Length]); // HMAC seed for client file verification.
packet.Write((byte)extraFlags);
if (extraFlags.HasFlag(ExtraSecurityFlags.Pin))
{
packet.Write(0); // Factor for determining PIN order.
packet.Write(new byte[Password.MD5Length]);
}
if (extraFlags.HasFlag(ExtraSecurityFlags.Matrix))
{
packet.Write((byte)0); // Matrix height.
packet.Write((byte)0); // Matrix width.
packet.Write((byte)0); // Minimum digits.
packet.Write((byte)0); // Maximum digits.
packet.Write((long)0); // MD5 seed.
// Let S = MD5(seed, sessionKey). Client uses S for the seed to a HMAC SHA-1 and an ARC4. It
// then captures key presses, and for every press, processes the entered value with the ARC4.
// The HMAC SHA-1 is then updated with the resulting value.
}
if (extraFlags.HasFlag(ExtraSecurityFlags.Token))
packet.Write((byte)0); // Not sure what this is...
return packet;
}
public static OutgoingAuthenticationPacket BuildAuthenticationLogOnChallengeSuccess(BigInteger srpPublicB, BigInteger srpGenerator, BigInteger srpModulus,
BigInteger srpSalt, ExtraSecurityFlags extraFlags = ExtraSecurityFlags.None, bool immediateDisconnect = false)
{
Contract.Requires(srpPublicB != null);
Contract.Requires(srpPublicB.ByteLength == WowAuthenticationParameters.KeySize);
Contract.Requires(srpGenerator != null);
Contract.Requires(srpGenerator.ByteLength == WowAuthenticationParameters.GeneratorSize);
Contract.Requires(srpModulus != null);
Contract.Requires(srpModulus.ByteLength == WowAuthenticationParameters.KeySize);
Contract.Requires(srpSalt != null);
Contract.Requires(srpSalt.ByteLength == WowAuthenticationParameters.KeySize);
Contract.Ensures(Contract.Result <OutgoingAuthenticationPacket>() != null);
var packet = new OutgoingAuthenticationPacket(GruntOpCode.AuthenticationLogOnChallenge);
packet.Write(immediateDisconnect);
packet.Write((byte)AuthenticationResult.Success);
packet.Write(srpPublicB, WowAuthenticationParameters.KeySize);
packet.Write(srpGenerator, WowAuthenticationParameters.GeneratorSize, true);
packet.Write(srpModulus, WowAuthenticationParameters.KeySize, true);
packet.Write(srpSalt, WowAuthenticationParameters.KeySize);
packet.Write(new byte[Password.MD5Length]); // HMAC seed for client file verification.
packet.Write((byte)extraFlags);
if (extraFlags.HasFlag(ExtraSecurityFlags.Pin))
{
packet.Write(0); // Factor for determining PIN order.
packet.Write(new byte[Password.MD5Length]);
}
if (extraFlags.HasFlag(ExtraSecurityFlags.Matrix))
{
packet.Write((byte)0); // Matrix height.
packet.Write((byte)0); // Matrix width.
packet.Write((byte)0); // Minimum digits.
packet.Write((byte)0); // Maximum digits.
packet.Write((long)0); // MD5 seed.
// Let S = MD5(seed, sessionKey). Client uses S for the seed to a HMAC SHA-1 and an ARC4. It
// then captures key presses, and for every press, processes the entered value with the ARC4.
// The HMAC SHA-1 is then updated with the resulting value.
}
if (extraFlags.HasFlag(ExtraSecurityFlags.Token))
{
packet.Write((byte)0); // Not sure what this is...
}
return(packet);
}
