ledunguit

AES-256 encryption and decryption in PHP and C#

Update: There is a more secure version available. Details

PHP

<?php

$plaintext = 'My secret message 1234';

ledunguit

<?php
// DEFINE our cipher
define('AES_256_CBC', 'aes-256-cbc');

// Generate a 256-bit encryption key
// This should be stored somewhere instead of recreating it each time
$encryption_key = openssl_random_pseudo_bytes(32);

// Generate an initialization vector
// This *MUST* be available for decryption as well

ledunguit

using System;
using System.IO;
using System.Security.Cryptography;
using System.Text;

class AES
{
    public static string Encrypt(string plainText, string keyString)
    {
        byte[] cipherData;