A simpler herlper library to encrypt and decrypt values

encryptor.rb

# Encryptor - is a library responsible for ecnrypting and decrypting values
# Inspired from - https://gist.github.com/wteuber/5318013

require 'openssl'

class Encryptor
  SECRET_KEY = Rails.application.secrets.secret_key_base

  def self.encrypt(text)
    cipher = OpenSSL::Cipher.new('DES-EDE3-CBC').encrypt
    cipher.key = Digest::SHA1.hexdigest(SECRET_KEY)
    s = cipher.update(text) + cipher.final

    s.unpack('H*')[0].upcase
  end

  def self.decrypt(text)
    cipher = OpenSSL::Cipher.new('DES-EDE3-CBC').decrypt
    cipher.key = Digest::SHA1.hexdigest(SECRET_KEY)
    s = [text].pack("H*").unpack("C*").pack("c*")

    cipher.update(s) + cipher.final
  end
end