public TeraEncryptionSession(Direction direction,
byte[] clientKey1, byte[] clientKey2, byte[] serverKey1, byte[] serverKey2)
{
direction.CheckValidity(nameof(direction));
CheckKey(clientKey1, nameof(clientKey1));
CheckKey(clientKey2, nameof(clientKey2));
CheckKey(serverKey1, nameof(serverKey1));
CheckKey(serverKey2, nameof(serverKey2));
Direction = direction;
_clientKey1 = clientKey1.ToArray();
_clientKey2 = clientKey2.ToArray();
_serverKey1 = serverKey1.ToArray();
_serverKey2 = serverKey2.ToArray();
_decryptKey = XorKey(ShiftKey(clientKey2, 29, false),
XorKey(ShiftKey(serverKey1, 67, true), clientKey1));
_decryptor = new TeraEncryption(_decryptKey);
var tmp = ShiftKey(serverKey2, 41, true);
_decryptor.Apply(tmp, 0, tmp.Length);
_encryptKey = tmp;
_encryptor = new TeraEncryption(_encryptKey);
}
public TeraEncryptionSession(Direction direction, byte[] clientKey1,
byte[] clientKey2, byte[] serverKey1, byte[] serverKey2)
{
Direction = direction;
_clientKey1 = clientKey1.ToArray();
_clientKey2 = clientKey2.ToArray();
_serverKey1 = serverKey1.ToArray();
_serverKey2 = serverKey2.ToArray();
var tmpKey1 = ShiftKey(serverKey1, 67, true);
var tmpKey2 = XorKey(tmpKey1, clientKey1);
tmpKey1 = ShiftKey(clientKey2, 29, false);
_decryptKey = XorKey(tmpKey1, tmpKey2);
_decryptor = new TeraEncryption(_decryptKey);
tmpKey1 = ShiftKey(serverKey2, 41, true);
_decryptor.Apply(tmpKey1, 0, tmpKey1.Length);
_encryptKey = tmpKey1;
_encryptor = new TeraEncryption(_encryptKey);
}
