Obfuscate an id

obfuscate.rb

  module Obfuscate

    def cipher
      OpenSSL::Cipher::Cipher.new('aes-256-cbc')
    end

    def cipher_key
      'any string that you want'
    end

    def deobfuscate(value)
      c = cipher.decrypt
      c.key = Digest::SHA256.digest(cipher_key)
      c.update(Base64.decode64(value.to_s)) + c.final
    end

    def obfuscate(value)
      c = cipher.encrypt
      c.key = Digest::SHA256.digest(cipher_key)
      Base64.encode64(c.update(value.to_s) + c.final).squish
    end
    
  end