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Sockets ASCII & Base64 Encryption Problems?

Posted on 2009-05-05
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Last Modified: 2012-05-06
I'm building a typical TCP Socket Server / Client in the usual way. Now I have a problem after encrypting the data. Both Client and Server have identical myCrypto classes and password123. I don't receive errors performing the Encryption on the Client, just during Decryption on the Server...

[Client]
publice void SendData(string message)
{
     Object oData = myCrypto.Encrypt(message, "password123");
     byte[] byteData = System.Text.Encoding.ASCII.GetBytes(oData.ToString());
}

[Server]
public  void DataRcvd(IAsyncResult aResult)
{
     string dataEncrypted = Encoding.ASCII.GetString(skt.byteBuffer, 0, skt.byteBuffer.Length);                                
     string dataDecrypted = myCrypto.Decrypt(dataEncrypted, "password123");
}
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Question by:pointeman
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6 Comments
 
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Expert Comment

by:williamcampbell
ID: 24310057
does (Server) string dataEncrypted   Equal (Client)  oData.ToString()  ?
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Author Comment

by:pointeman
ID: 24316549
I'm check that out now...
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Author Comment

by:pointeman
ID: 24317047
Go figure, for what ever reason, loading the received data into a textbox somehow fixes the problem, although I don't want to use a textbox because the Win-App is just a testing project to eventually build a Win-Service later....
public  void DataRcvd(IAsyncResult aResult)
{
     string dataEncrypted = Encoding.ASCII.GetString(skt.byteBuffer, 0, skt.byteBuffer.Length);                                
     
     textBox_ReceivedMsg.Text = dataEncrypted;

     string dataDECRYTPED = myCrypto.Decrypt(txtReceivedMsg.Text, "password123");

     textBox_Decrypted.Text = dataDECRYTPED;
}
 
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LVL 12

Expert Comment

by:williamcampbell
ID: 24318000
Maybe the line below will do it
string dataEncrypted = Convert.ToString (Encoding.ASCII.GetString(skt.byteBuffer, 0, skt.byteBuffer.Length));  
 
or
 
string dataEncrypted = Encoding.ASCII.GetString(skt.byteBuffer, 0, skt.byteBuffer.Length).ToString ();  

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Author Comment

by:pointeman
ID: 24320809
No, both code suggestions failed because I now need to convert to base64, which I did, then I receive a padding error....
I guess I need to investigate how a TextBox converts input data.
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pointeman earned 0 total points
ID: 24337218
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