public bool NegotiateAlgorithms(PacketKeyExchange client, PacketKeyExchange server)
{
algorithm_kex = NegotiateAlgorithm(client.kex_algorithms, server.kex_algorithms);
algorithm_server_host_key = NegotiateAlgorithm(client.server_host_key_algorithms, server.server_host_key_algorithms);
algorithm_encryption_client_to_server = NegotiateAlgorithm(client.encryption_algorithms_client_to_server, server.encryption_algorithms_client_to_server);
algorithm_encryption_server_to_client = NegotiateAlgorithm(client.encryption_algorithms_server_to_client, server.encryption_algorithms_server_to_client);
algorithm_mac_client_to_server = NegotiateAlgorithm(client.mac_algorithms_client_to_server, server.mac_algorithms_client_to_server);
algorithm_mac_server_to_client = NegotiateAlgorithm(client.mac_algorithms_server_to_client, server.mac_algorithms_server_to_client);
algorithm_compression_client_to_server = NegotiateAlgorithm(client.compression_algorithms_client_to_server, server.compression_algorithms_client_to_server);
algorithm_compression_server_to_client = NegotiateAlgorithm(client.compression_algorithms_server_to_client, server.compression_algorithms_server_to_client);
algorithm_languages_client_to_server = NegotiateAlgorithm(client.languages_client_to_server, server.languages_client_to_server);
algorithm_languages_server_to_client = NegotiateAlgorithm(client.languages_server_to_client, server.languages_server_to_client);
if (algorithm_kex != null &&
algorithm_server_host_key != null &&
algorithm_encryption_client_to_server != null &&
algorithm_encryption_server_to_client != null &&
algorithm_mac_client_to_server != null &&
algorithm_mac_server_to_client != null &&
algorithm_compression_client_to_server != null &&
algorithm_compression_server_to_client != null
)
{
return(true);
}
else
{
return(false);
}
}
// KeyExchange is a multibyte packet based action
public void KeyExchangeInit()
{
// This Should Be a KeyExchange Packet
Packet packet = RecvPacket(null);
PacketKeyExchange packet_kex_server = new PacketKeyExchange(packet);
packet_kex_server.Parse();
verify_i_s = packet_kex_server.GetPayload();
PacketKeyExchange packet_kex_client = new PacketKeyExchange();
packet_kex_client.Reset();
packet_kex_client.Pack();
verify_i_c = packet_kex_client.GetPayload();
SendPacket(null, packet_kex_client);
NegotiateAlgorithms(packet_kex_client, packet_kex_server);
}
public bool NegotiateAlgorithms(PacketKeyExchange client, PacketKeyExchange server)
{
algorithm_kex = NegotiateAlgorithm(client.kex_algorithms, server.kex_algorithms);
algorithm_server_host_key = NegotiateAlgorithm(client.server_host_key_algorithms, server.server_host_key_algorithms);
algorithm_encryption_client_to_server = NegotiateAlgorithm(client.encryption_algorithms_client_to_server, server.encryption_algorithms_client_to_server);
algorithm_encryption_server_to_client = NegotiateAlgorithm(client.encryption_algorithms_server_to_client, server.encryption_algorithms_server_to_client);
algorithm_mac_client_to_server = NegotiateAlgorithm(client.mac_algorithms_client_to_server, server.mac_algorithms_client_to_server);
algorithm_mac_server_to_client = NegotiateAlgorithm(client.mac_algorithms_server_to_client, server.mac_algorithms_server_to_client);
algorithm_compression_client_to_server = NegotiateAlgorithm(client.compression_algorithms_client_to_server, server.compression_algorithms_client_to_server);
algorithm_compression_server_to_client = NegotiateAlgorithm(client.compression_algorithms_server_to_client, server.compression_algorithms_server_to_client);
algorithm_languages_client_to_server = NegotiateAlgorithm(client.languages_client_to_server, server.languages_client_to_server);
algorithm_languages_server_to_client = NegotiateAlgorithm(client.languages_server_to_client, server.languages_server_to_client);
if (algorithm_kex != null &&
algorithm_server_host_key != null &&
algorithm_encryption_client_to_server != null &&
algorithm_encryption_server_to_client != null &&
algorithm_mac_client_to_server != null &&
algorithm_mac_server_to_client != null &&
algorithm_compression_client_to_server != null &&
algorithm_compression_server_to_client != null
)
{
return true;
}
else
{
return false;
}
}
// KeyExchange is a multibyte packet based action
public void KeyExchangeInit()
{
// This Should Be a KeyExchange Packet
Packet packet = RecvPacket(null);
PacketKeyExchange packet_kex_server = new PacketKeyExchange(packet);
packet_kex_server.Parse();
verify_i_s = packet_kex_server.GetPayload();
PacketKeyExchange packet_kex_client = new PacketKeyExchange();
packet_kex_client.Reset();
packet_kex_client.Pack();
verify_i_c = packet_kex_client.GetPayload();
SendPacket(null, packet_kex_client);
NegotiateAlgorithms(packet_kex_client, packet_kex_server);
}
