public void Challenge11()
{
bool isECB;
var input = Encoding.UTF8.GetBytes("YELLOW SUBMARINEYELLOW SUBMARINEYELLOW SUBMARINE");
var output = Crypto.AESEncryptionOracle(input, out isECB);
var detectedECB = Crypto.ECBDetectionOracle(output);
Assert.AreEqual(isECB, detectedECB);
}