/// <summary>
/// Tworzy zaszyfrowane klucze do wysłania
/// </summary>
/// <param name="clientSign">Klucze klienta</param>
//RSAParameters clientSign
public void ExchangeKeysMsg()
{
byte[] toEncrypt;
byte[] encrypted;
byte[] signature;
//string original = String.Concat(protocol.GetReceivedNumber());
string original = "hello";
//ASCIIEncoding myAscii = new ASCIIEncoding();
//signature = sign.HashSign(Encoding.UTF8.GetBytes(original));
toEncrypt = Encoding.UTF8.GetBytes(original);
clientSign = sign.GetClientPublicKeys();
encrypted = sign.EncryptData(clientSign, toEncrypt);
signature = sign.HashSign(encrypted);
//sign.VerifyHash(clientSign, encrypted, signature).ToString();
signed = Tuple.Create(encrypted, signature);
//return tuple;
}
/// <summary>
/// Wysyłanie wiadomości do socketa z pomocą opcji
/// </summary>
/// <param name="data">treść wiadomości</param>
/// <param name="option">opcja wiadomości, możliwe opcje:
/// 1 - wyślij wartość modulo
/// 2 - wyślij wartość exponenty
/// 3 - wyślij podpisaną wiadomość
/// 4 - wyślij sygnaturę
/// 5 - wyślij liczbę pierwszą
/// 6 - wyślij pierwiastek pierwotny
/// 7 - wyślij wyznaczoną wartość, wyliczoną za pomocą tajnej liczby własnej (g^t mod p)
/// </param>
public void SendMessage(string data, int option)
{
//ASCIIEncoding enc = new ASCIIEncoding();
string sending;
string msgOption;
byte[] endMsg = new byte[1024];
switch (option)
{
case 1:
msgOption = "M";
sending = sign.ownPubKey.Item1;
break;
case 2:
msgOption = "E";
sending = sign.ownPubKey.Item2;
break;
case 3:
msgOption = "K";
//clientSign = sign.GetClientPublicKeys();
ExchangeKeysMsg(protocol.GetMsgToSign());
sending = Convert.ToBase64String(signed.Item1);
break;
case 4:
msgOption = "S";
//ExchangeKeysMsg(sign.GetClientKeys());
sending = Convert.ToBase64String(signed.Item2);
break;
case 5:
msgOption = "P";
sending = protocol.GetPrimeNumber().ToString();
break;
case 6:
msgOption = "R";
sending = protocol.GetPrimitiveRoot().ToString();
break;
case 7:
msgOption = "B";
//protocol.CreateNumberToSend();
sending = protocol.GetNumberToSend();
break;
case 8:
msgOption = "Q";
RSAParameters rsaPub = sign.GetClientPublicKeys();
byte[] encrypted = sign.EncryptData(rsaPub, Encoding.UTF8.GetBytes(sign.GetMsgToSign(1)));
sending = Convert.ToBase64String(encrypted);
break;
case 9:
msgOption = "T";
rsaPub = sign.GetClientPublicKeys();
int len = sign.GetMsgToSign(0).Length;
halfMsg = sign.GetMsgToSign(0).Substring(0, len / 2);
encrypted = sign.EncryptData(rsaPub, Encoding.UTF8.GetBytes(halfMsg));
sending = Convert.ToBase64String(encrypted);
break;
case 10:
msgOption = "U";
rsaPub = sign.GetClientPublicKeys();
len = sign.GetMsgToSign(0).Length;
halfMsg = sign.GetMsgToSign(0).Substring(len / 2, len / 2);
encrypted = sign.EncryptData(rsaPub, Encoding.UTF8.GetBytes(halfMsg));
sending = Convert.ToBase64String(encrypted);
break;
case 11:
msgOption = "V";
sending = aes.getAesIV();
break;
case 12:
msgOption = "W";
sending = aes.getAesKeys();
break;
/*case 8:
* msgOption = "Q"; //q
* sending = sign.ownPrivKey.ElementAt(3);
* break;
* case 9:
* msgOption = "T"; //p
* sending = sign.ownPrivKey.ElementAt(2);
* break;
* case 10:
* msgOption = "U"; //dp
* sending = sign.ownPrivKey.ElementAt(4);
* break;
* case 11:
* msgOption = "V"; //dq
* sending = sign.ownPrivKey.ElementAt(5);
* break;
* case 12:
* msgOption = "W"; //inverseq
* sending = sign.ownPrivKey.ElementAt(6);
* break;
* case 13:
* msgOption = "X"; //d
* sending = sign.ownPrivKey.ElementAt(7);
* break;*/
default:
msgOption = "D";
sending = aes.addSalt(aes.DoAESEnc(data));
break;
}
endMsg = Encoding.UTF8.GetBytes(String.Concat(msgOption, sending));
clientSocket.Send(endMsg);
}