public void Authenticate(string username, string password)
{
PacketGeneral packet_auth = new PacketGeneral(Packet.SSH_MSG_USERAUTH_REQUEST);
packet_auth.GetStreamWriter().WriteString("ssh-userauth");
SendPacket(crypto_encryptor, packet_auth);
Packet packet = RecvPacket(crypto_decryptor);
if (packet.Message == Packet.SSH_MSG_SERVICE_ACCEPT)
{
Console.WriteLine("SSH_MSG_SERVICE_ACCEPT");
}
packet_auth = new PacketGeneral(50);
NetworkByteWriter nbw_cache = packet_auth.GetStreamWriter();
//SSH_MSG_USERAUTH_REQUEST
nbw_cache.WriteString(username);
nbw_cache.WriteString("ssh-connection");
nbw_cache.WriteString("password");
nbw_cache.WriteByte((byte)0);
nbw_cache.WriteString(password);
SendPacket(crypto_encryptor, packet_auth);
packet = RecvPacket(crypto_decryptor);
if (Packet.SSH_MSG_USERAUTH_SUCCESS == packet.Message)
{
Console.WriteLine("oh ya!");
}
}
public void KeyVerify(string algorithm, HashAlgorithm hash)
{
MemoryStream cache = new MemoryStream();
NetworkByteWriter nbr_cache = new NetworkByteWriter(cache);
nbr_cache.WriteString(verify_v_c);
nbr_cache.WriteString(verify_v_s);
nbr_cache.WriteBlob(verify_i_c);
nbr_cache.WriteBlob(verify_i_s);
nbr_cache.WriteBlob(verify_k_s);
nbr_cache.WriteMPInt(verify_e);
nbr_cache.WriteMPInt(verify_f);
nbr_cache.WriteMPInt(verify_k);
nbr_cache.Flush();
if (algorithm == "ssh-rsa")
{
verify_h = hash.ComputeHash(cache.ToArray());
RSAParameters RSAKeyInfo = new RSAParameters();
{
MemoryStream ms_tmp = new MemoryStream(verify_k_s);
NetworkByteReader nbr_tmp = new NetworkByteReader(ms_tmp);
string type = nbr_tmp.ReadString();
BigInteger rsa_e = nbr_tmp.ReadMPInt();
BigInteger rsa_n = nbr_tmp.ReadMPInt();
RSAKeyInfo.Modulus = NetworkByteUtils.BigIntegerToUnsignedArray(rsa_n);
RSAKeyInfo.Exponent = NetworkByteUtils.BigIntegerToUnsignedArray(rsa_e);
}
byte[] rsa_signature_blob;
{
MemoryStream ms_tmp = new MemoryStream(verify_sig);
NetworkByteReader nbr_tmp = new NetworkByteReader(ms_tmp);
string type = nbr_tmp.ReadString();
rsa_signature_blob = nbr_tmp.ReadBlob();
}
RSACryptoServiceProvider RSA = new RSACryptoServiceProvider();
RSA.ImportParameters(RSAKeyInfo);
RSAPKCS1SignatureDeformatter RSADeformatter = new RSAPKCS1SignatureDeformatter(RSA);
RSADeformatter.SetHashAlgorithm("SHA1");
byte[] xx2 = SHA1.Create().ComputeHash(verify_h);
bool verify = RSADeformatter.VerifySignature(xx2, rsa_signature_blob);
}
}
public void KeyVerify(string algorithm, HashAlgorithm hash)
{
MemoryStream cache = new MemoryStream();
NetworkByteWriter nbr_cache = new NetworkByteWriter(cache);
nbr_cache.WriteString(verify_v_c);
nbr_cache.WriteString(verify_v_s);
nbr_cache.WriteBlob(verify_i_c);
nbr_cache.WriteBlob(verify_i_s);
nbr_cache.WriteBlob(verify_k_s);
nbr_cache.WriteMPInt(verify_e);
nbr_cache.WriteMPInt(verify_f);
nbr_cache.WriteMPInt(verify_k);
nbr_cache.Flush();
if (algorithm == "ssh-rsa")
{
verify_h = hash.ComputeHash(cache.ToArray());
RSAParameters RSAKeyInfo = new RSAParameters();
{
MemoryStream ms_tmp = new MemoryStream(verify_k_s);
NetworkByteReader nbr_tmp = new NetworkByteReader(ms_tmp);
string type = nbr_tmp.ReadString();
BigInteger rsa_e = nbr_tmp.ReadMPInt();
BigInteger rsa_n = nbr_tmp.ReadMPInt();
RSAKeyInfo.Modulus = NetworkByteUtils.BigIntegerToUnsignedArray(rsa_n);
RSAKeyInfo.Exponent = NetworkByteUtils.BigIntegerToUnsignedArray(rsa_e);
}
byte[] rsa_signature_blob;
{
MemoryStream ms_tmp = new MemoryStream(verify_sig);
NetworkByteReader nbr_tmp = new NetworkByteReader(ms_tmp);
string type = nbr_tmp.ReadString();
rsa_signature_blob = nbr_tmp.ReadBlob();
}
RSACryptoServiceProvider RSA = new RSACryptoServiceProvider();
RSA.ImportParameters(RSAKeyInfo);
RSAPKCS1SignatureDeformatter RSADeformatter = new RSAPKCS1SignatureDeformatter(RSA);
RSADeformatter.SetHashAlgorithm("SHA1");
byte[] xx2 = SHA1.Create().ComputeHash(verify_h);
bool verify = RSADeformatter.VerifySignature(xx2, rsa_signature_blob);
}
}
public void OpenChannel(VideoTerminal x)
{
PacketGeneral packet_openchannel = new PacketGeneral(90);
NetworkByteWriter nbw = packet_openchannel.GetStreamWriter();
nbw.WriteString("session");
nbw.WriteUInt32(0);
nbw.WriteUInt32(1048576);
nbw.WriteUInt32(16384);
SendPacket(crypto_encryptor, packet_openchannel);
Packet packet = RecvPacket(crypto_decryptor);
NetworkByteReader nbr = packet.GenerateReader();
nbr.ReadByte();
uint recipient_channel = nbr.ReadUInt32();
uint sender_channel = nbr.ReadUInt32();
uint initial_window_size = nbr.ReadUInt32();
uint maximum_packet_size = nbr.ReadUInt32();
PacketGeneral packet_pty = new PacketGeneral(Packet.SSH_MSG_CHANNEL_REQUEST);
nbw = packet_pty.GetStreamWriter();
nbw.WriteUInt32(recipient_channel);
nbw.WriteString("pty-req");
nbw.WriteByte(0);
nbw.WriteString("vt100");
nbw.WriteUInt32(80);
nbw.WriteUInt32(24);
nbw.WriteUInt32(640);
nbw.WriteUInt32(480);
nbw.WriteString("");
SendPacket(crypto_encryptor, packet_pty);
PacketGeneral packet_shell = new PacketGeneral(Packet.SSH_MSG_CHANNEL_REQUEST);
nbw = packet_shell.GetStreamWriter();
nbw.WriteUInt32(recipient_channel);
nbw.WriteString("shell");
nbw.WriteByte(0);
SendPacket(crypto_encryptor, packet_shell);
while (true)
{
if (RecvAvailable())
{
packet = RecvPacket(crypto_decryptor);
switch (packet.Message)
{
case Packet.SSH_MSG_CHANNEL_WINDOW_ADJUST:
break;
case Packet.SSH_MSG_CHANNEL_DATA:
PacketChannelData p = new PacketChannelData(packet);
p.Parse();
x.HandleServerData(p.data);
break;
default:
break;
}
}
else
{
string data = x.GetClientData();
if (data.Length != 0)
{
PacketGeneral packet_key = new PacketGeneral(Packet.SSH_MSG_CHANNEL_DATA);
nbw = packet_key.GetStreamWriter();
nbw.WriteUInt32(recipient_channel);
nbw.WriteString(data);
SendPacket(crypto_encryptor, packet_key);
}
}
}
}
