第二部分:如何使Ruby AES-256-CBC和PHP MCRYPT_RIJNDAEL_128一起发挥得很好

require 'openssl'
require 'base64'

key = "your_key_here"
iv = "your_iv_here"

def encrypt_ruby(data)
  cipher = OpenSSL::Cipher.new('AES-256-CBC')
  cipher.encrypt
  cipher.key = key
  cipher.iv = iv
  encrypted_data = cipher.update(data) + cipher.final
  Base64.encode64(encrypted_data)
end

def decrypt_ruby(encrypted_data)
  encrypted_data = Base64.decode64(encrypted_data)
  decipher = OpenSSL::Cipher.new('AES-256-CBC')
  decipher.decrypt
  decipher.key = key
  decipher.iv = iv
  decipher.update(encrypted_data) + decipher.final
end

<?php
$key = "your_key_here";
$iv = "your_iv_here";

function encrypt_php($data) {
  $encrypted_data = openssl_encrypt($data, 'AES-256-CBC', $key, OPENSSL_RAW_DATA, $iv);
  return base64_encode($encrypted_data);
}

function decrypt_php($encrypted_data) {
  $encrypted_data = base64_decode($encrypted_data);
  $decrypted_data = openssl_decrypt($encrypted_data, 'AES-256-CBC', $key, OPENSSL_RAW_DATA, $iv);
  return $decrypted_data;
}
?>