Thread: Chat security. pursuing aid.

Thread moved.

What have you tried? Why has it failed? How do you know it failed?

Summary : I need a way to secure the communications in my chat with a standard key for both client and server.

I'm not sure why you're using 3DES (DES). It was really meant to be implemented in hardware. IMHO, a software implementation would be a serious hit on performance.

But anyway, you may want to check out AES using ECB (Electronic Code Book). I'm currently working with Java code written and published on the net by a very proficient Java programmer. This code implements the AES ECB security. Both the server and client know the private key and they use this key to negotiate a secure session. Check out the AES.java file from this programmer. It details the implementation of AES.

I have the automation/security controller that the Java code connects with and can verify that the code works as described by the author.

The code can be found at https://code.google.com/p/jomnilink/

Finally, I'm a C programmer transitioning to Java. At this point in time, my Java skill level is little more than "hello world". So, I can't be much of a help to you in the interpretation of the Java code.