This gem implements simple cryptographic ciphers. As of now, it can only do Vigenère and Autokey ciphers, but more are coming as I have the time and inclination. Because this mostly exists for my own purposes (the fun of programming it and CTFs), I am not currently accepting PRs for new features or ciphers. Feel free to fork away, though, and if you have any suggestions for what I should implement next, I'd love to hear them! This especially applies if the recommendation comes with a fun puzzle that implementing it will solve!
I generally feel free to break the API on minor revisions prior to a 1.0. After that, I follow semantic versioning.
Bug reports and feature/cipher requests are welcome here