Well, most of us know what a cipher, or code, is.
But do we know how to encode and decode these ciphers, such as the Caesar Cipher, Vignere Cipher, and the Simple Transposition Cipher?
Well, I really don't know the answer to that question, but I'll assume no.

My program(s) (As of now, each cipher is its own program; I intend to merge them) allow the user to ENCODE AND DECODE text!

More soon. Gotta dash.
Reply with ciphers you would like to be implemented, please.

How about my Vignere Cipher? If you want, you may get my code as well

Ah, I have that! I don't need your code, but thanks!

So, I intend on adding the Polybius square cipher, and if I ever learn public/private key ciphers, I'll work on that as well!

*Vigenère.

Implementing Diffie-Hellman key exchange would be fun.

Yes, yes, I know it has an accent grave, but I didn't feel like typing it out.

Hmmm... I'll look into that, I guess.

You and PT_ both left out the first e.

Ah, I see that now. Thank you; I seem to have missed that e when learning the cipher!