/// <summary>
/// Switch network reading/writing to an encrypted stream
/// </summary>
/// <param name="secretKey">AES secret key</param>
public void SwitchToEncrypted(byte[] secretKey)
{
if (encrypted)
{
throw new InvalidOperationException("Stream is already encrypted!?");
}
this.s = CryptoHandler.getAesStream(c.GetStream(), secretKey);
this.encrypted = true;
}
public void InitializeEncryption(byte[] key)
{
_aesStream = new BouncyCastleAesStream(_stream, key);
}
/// <summary>
/// Start network encryption. Automatically called by Login() if the server requests encryption.
/// </summary>
/// <returns>True if encryption was successful</returns>
private bool StartEncryption(string uuid, string sessionID, byte[] token, string serverIDhash, byte[] serverKey)
{
System.Security.Cryptography.RSACryptoServiceProvider RSAService = CryptoHandler.DecodeRSAPublicKey(serverKey);
byte[] secretKey = CryptoHandler.GenerateAESPrivateKey();
if (Settings.DebugMessages)
ConsoleIO.WriteLineFormatted("§8Crypto keys & hash generated.");
if (serverIDhash != "-")
{
Console.WriteLine("Checking Session...");
if (!ProtocolHandler.SessionCheck(uuid, sessionID, CryptoHandler.getServerHash(serverIDhash, serverKey, secretKey)))
{
handler.OnConnectionLost(ChatBot.DisconnectReason.LoginRejected, "Failed to check session.");
return false;
}
}
//Encrypt the data
byte[] key_enc = getArray(RSAService.Encrypt(secretKey, false));
byte[] token_enc = getArray(RSAService.Encrypt(token, false));
//Encryption Response packet
SendPacket(0x01, concatBytes(key_enc, token_enc));
//Start client-side encryption
s = CryptoHandler.getAesStream(c.GetStream(), secretKey);
encrypted = true;
//Process the next packet
int packetID = -1;
List<byte> packetData = new List<byte>();
while (true)
{
readNextPacket(ref packetID, packetData);
if (packetID == 0x00) //Login rejected
{
handler.OnConnectionLost(ChatBot.DisconnectReason.LoginRejected, ChatParser.ParseText(readNextString(packetData)));
return false;
}
else if (packetID == 0x02) //Login successful
{
login_phase = false;
if (forgeInfo != null)
{
// Do the forge handshake.
if (!CompleteForgeHandshake())
{
return false;
}
}
StartUpdating();
return true;
}
else handlePacket(packetID, packetData);
}
}
public void InitializeEncryption(byte[] key)
{
_aesStream = new BouncyCastleAesStream(_stream, key);
}
