#! /usr/local/bin/ruby1.9 -w # encoding: utf-8 # # Code based on: # http://stuff-things.net/2008/02/05/encrypting-lots-of-sensitive-data-with-ruby-on-rails/ # require 'openssl' TEST_MESSAGE = "The quick brown fox jumped over the lazy fox." module EncryptDecrypt def self.encryptData(data, publicKey) # Create Cipher to encrypt using 256 bit AES with CBC cipher = OpenSSL::Cipher.new('aes-256-cbc') cipher.encrypt # Generate random keys and IVs cipher.key = random_key = cipher.random_key cipher.iv = random_iv = cipher.random_iv # Encrypt the data encrypted_data = cipher.update(data) encrypted_data << cipher.final # Encrypt the key encrypted_key = publicKey.public_encrypt(random_key) encrypted_iv = publicKey.public_encrypt(random_iv) return encrypted_data, encrypted_key, encrypted_iv end def self.decryptData(data, key, iv, privateKey) # Create Cipher to decrypt using 256 bit AES with CBC cipher = OpenSSL::Cipher.new('aes-256-cbc') cipher.decrypt # Decrypt the key and iv cipher.key = privateKey.private_decrypt(key) cipher.iv = privateKey.private_decrypt(iv) # Decrypt the message decrypted_data = cipher.update(data) decrypted_data << cipher.final return decrypted_data end end publicKeyPEM = <