cipher.rb

require 'openssl/cipher'

module Cipher
  Algorithm = 'aes-256-cbc'

  def encrypt(text, key)
    cipher = OpenSSL::Cipher::Cipher.new(Cipher::Algorithm)
    cipher.encrypt
    cipher.pkcs5_keyivgen(key)
    secret =  cipher.update(text)
    secret << cipher.final
    secret
  end

  def decrypt(text, key)
    cipher = OpenSSL::Cipher::Cipher.new(Cipher::Algorithm)
    cipher.decrypt
    cipher.pkcs5_keyivgen(key)
    nosecret =  cipher.update(text)
    nosecret << cipher.final
    nosecret
  end
end