public LoginResponse WriteAuthBlock(string username, string password) { var stream = client.GetStream(); stream.ReadTimeout = 5000; var nameHash = StringUtils.StringToLong(username); var i = (int)(nameHash >> 16 & 31L); var @out = new DefaultJagexBuffer(5000); @out.Position(0); @out.WriteByte(14); @out.WriteByte(i); stream.Write(@out.Array(), 0, @out.Position()); @out.Position(0); stream.Flush(); for (var j = 0; j < 8; j++) { stream.ReadByte(); } int response = stream.ReadByte(); if (response == 0) { InBuffer.Position(0); stream.Read(InBuffer.Array(), 0, 8); var serverSeed = InBuffer.ReadLong(); var seed = new int[4]; var rand = new System.Random(); seed[0] = (int)(rand.NextDouble() * 9.9999999E7D); seed[1] = (int)(rand.NextDouble() * 9.9999999E7D); seed[2] = (int)(serverSeed >> 32); seed[3] = (int)(serverSeed); @out.Position(0); @out.WriteByte(10); @out.WriteInt(seed[0]); @out.WriteInt(seed[1]); @out.WriteInt(seed[2]); @out.WriteInt(seed[3]); @out.WriteInt(350 >> 2240); @out.WriteString(username, 10); @out.WriteString(password, 10); @out.WriteShort(222); @out.WriteByte(0); @out.RSA(GameConstants.LoginRsaExp, GameConstants.LoginRsaMod); wrapperBuffer.Position(0); wrapperBuffer.WriteByte(16); wrapperBuffer.WriteByte(@out.Position() + 36 + 1 + 2); wrapperBuffer.WriteByte(255); wrapperBuffer.WriteShort(13); wrapperBuffer.WriteByte(1); for (var j = 0; j < 9; j++) { wrapperBuffer.WriteInt(0); } GameContext.OutCipher = new ISAACCipher(seed); for (var j = 0; j < seed.Length; j++) { seed[j] += 50; } GameContext.InCipher = new ISAACCipher(seed); wrapperBuffer.WriteBytes(@out.Array(), 0, @out.Position()); stream.Write(wrapperBuffer.Array(), 0, wrapperBuffer.Position()); stream.Flush(); response = stream.ReadByte(); @out.Position(0); if (response == 2) { GameContext.LocalRights = stream.ReadByte(); stream.ReadByte(); Connected = true; return(LoginResponse.SuccessfulLogin); } } return(LoginResponse.Unknown); }