public FtpTicketResponse RequstSessionKeyForFtpConnection(FtpKeyRequst ftpKeyRequst)
{
if (!users_list.ContainsKey(ftpKeyRequst.UserName))
{
return(null);
}
// get users from the data base
KdcFtpKey retKeyFromDB = m_FtpDBservice.getKdcFtpKey("KDC");
// check validity
if (retKeyFromDB == null)
{
Console.Write("no key exist in DB");
return(null);
}
// genrate new session key for CLIENT - FTP
byte[] sessiomKey = CAes.NewKey();
FtpTicketResponse ftpTicketResponse = new FtpTicketResponse();
ftpTicketResponse.SessionKeyClientFTPEncryptedForFTP = CAes.SimpleEncryptWithPassword(sessiomKey, retKeyFromDB.PassWord);
ftpTicketResponse.UserNameencryptedForFtpWithFtpKey = CAes.SimpleEncryptWithPassword(ftpKeyRequst.UserName, retKeyFromDB.PassWord);
ftpTicketResponse.SessionKeyClientFTPEncryptedForClient = CAes.SimpleEncrypt(sessiomKey, users_list[ftpKeyRequst.UserName].SessionKey, users_list[ftpKeyRequst.UserName].SessionKey);
return(ftpTicketResponse);
}
public CKdcToClientLogInData LogInApp(string userName)
{
if (users_list.ContainsKey(userName))
{
Console.WriteLine("you already logged");
return(null);
}
Console.WriteLine("LOGIN: NAME {0} ", userName);
CKdcToClientLogInData msgKdcToClientLoggin = new CKdcToClientLogInData();
User retUserFromDB = m_DBservice.getUserByName(userName);
if (retUserFromDB != null)
{
byte[] userSessionKey = CAes.NewKey();
string challenge = Path.GetRandomFileName();
int port = 1100 + retUserFromDB.ID;
byte[] localPortByte = BitConverter.GetBytes(port);
msgKdcToClientLoggin.m_username = CAes.SimpleEncryptWithPassword(userName, retUserFromDB.PassWord);
msgKdcToClientLoggin.m_kdcAsSessionKey = CAes.SimpleEncryptWithPassword(userSessionKey, retUserFromDB.PassWord);
msgKdcToClientLoggin.m_challenge = CAes.SimpleEncryptWithPassword(challenge, retUserFromDB.PassWord);
msgKdcToClientLoggin.m_localPort = CAes.SimpleEncryptWithPassword(localPortByte, retUserFromDB.PassWord);
UserServiceData userServiceData = new UserServiceData(userSessionKey, OperationContext.Current.GetCallbackChannel <IClientKdcCallBack>());
userServiceData.logginChallenge = challenge + challenge;
users_list.Add(userName, userServiceData);
}
else
{
msgKdcToClientLoggin = null;
}
return(msgKdcToClientLoggin);
}