Wixy is a library for playing with classical ciphers. These are the ones you can work with pencil and paper. For starters, you can try:

• Caesar cipher
• Vigenère cipher

Installing

$ gem install wixy

Getting started

You can use Wixy from the command line, like this:

$ wixy "my secret message"
$ wixy --decrypt --cipher vigenere --key pudding BSVHKEKIGHVANMT
$ wixy --help

or as a library, like this:

require 'wixy'
config = Wixy::Config.new do |config|
  config.cipher = :vigenere
  config.key = "SUSHIFROGGY"
end

# Using the Wixy module
ciphertext = Wixy.encrypt("my secret message", config)
plaintext = Wixy.decrypt(ciphertext, config)

# The same thing, but using the underlying cipher instance
cipher = Wixy::Vigenere.new
ciphertext = cipher.encrypt("my secret message")
plaintext = cipher.decrypt(ciphertext)

Contributing

Contributions are welcome! Pull requests with specs preferred :)

There are loads of cool ciphers around in addition to the few supported at the moment.

Have fun!