# A fake class that does no encryption module CryptKeeper module Provider class FakeEncryptor def initialize(*args) end end end end # This class embeds the passphrase in the beginning of the string # and then reverses the 'plaintext' module CryptKeeper module Provider class Encryptor def initialize(options = {}) @passphrase = options[:passphrase] end def encrypt(data) @passphrase + data.reverse end def decrypt(data) data.to_s.sub(/^#{@passphrase}/, '').reverse end end end end