AESの暗号記述

AES暗号

using (SymmetricAlgorithm cspAlgorithm = new AesManaged())
{
    cspAlgorithm.Key = keyBytes
    cspAlgorithm.IV = ivBytes

    using (ICryptoTransform encryptor = cspAlgorithm.CreateEncryptor())
    {
        byte[] source = Encoding.UTF8.GetBytes(暗号化させたい文章);
        byte[] encrypted = encryptor.TransformFinalBlock(source, 0, source.Length);

        Base64変換された暗号化された文章=  Convert.ToBase64String(encrypted);
    }

}