The card deck can be the key and the encryption mechanism too with Solitare. It's not secure for longer messages but it should be sufficient for short messages.

The card deck can be the key and the encryption mechanism too with Solitare. It's not secure for longer messages but it should be sufficient for short messages. It's a delicate method though because if you mess up it can be difficult to impossible to recover the proper state of the deck. https://en.wikipedia.org/wiki/Solitaire_(cipher) https://en.wikipedia.org/wiki/Solitaire_(cipher)