Posted 13 September 2012 - 01:40 AM
Why exactly would you want to use such a weak cipher? There's a reason modern ciphers, such as AES, exist. If you're looking for a toy program, why not write it yourself? The Caesar shift cipher is extremely easy to write.
(You're probably not going to get a good response here because your question sounds far too much like homework)
- My statements do not establish the official position of Microsoft Corporation, and are my own personal opinion. (But you already knew that, right?)