Lets say I have text that I have encrypted using the Blowfish algorithm, how does the user decrypt it. I have been looking for a simple app in Windows were you can just input your key, paste in your text, and get the results, but I haven't found anything. Does anyone have any ideas? (it does haven't to be Blowfish encryption, I'm open to switching to AES, DES, DESEDE).

Thanks.

If you're using .NET, then there's a number of classes for different encryption methods that should be fairly easy to use - and lots of examples on the web. If you're writing unmanaged code, I think you need to code your own encryption algorithm, or use a 3rd party library (I don't think the Win32 API includes any built-in encryption functionality).