public void TestAES256Encrypt()
{
byte[] block = Encoding.ASCII.GetBytes("00000000000000000000000000000000");
byte[] key = Encoding.ASCII.GetBytes("1234567812345678");
byte[] result = block.AES256Encrypt(key);
string encryptString = result.ToHexString();
encryptString.Should().Be("f69e0923d8247eef417d6a78944a4b39f69e0923d8247eef417d6a78944a4b39");
}