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//
// SymmetricAlgorithm2Test.cs -
// Non generated NUnit Test Cases for SymmetricAlgorithm
//
// Author:
// Sebastien Pouliot <spouliot@ximian.com>
//
// Copyright (C) 2004-2005 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using NUnit.Framework;
using System;
using System.IO;
using System.Security.Cryptography;
using System.Text;
namespace MonoTests.System.Security.Cryptography {
// SymmetricAlgorithm is a abstract class - so most of it's functionality wont
// be tested here (but will be in its descendants).
[TestFixture]
public class SymmetricAlgorithm2Test {
[Test]
public void KeySize_SameSize ()
{
using (SymmetricAlgorithm algo = SymmetricAlgorithm.Create ()) {
// get a copy of the key
byte[] key = algo.Key;
int ks = algo.KeySize;
// set the key size
algo.KeySize = ks;
// did it change the key ? Yes!
Assert.AreNotEqual (BitConverter.ToString (key), BitConverter.ToString (algo.Key), "Key");
}
}
[Test]
public void BlockSize_SameSize ()
{
using (SymmetricAlgorithm algo = SymmetricAlgorithm.Create ()) {
// get a copy of the IV
byte[] iv = algo.IV;
int bs = algo.BlockSize;
// set the iv size
algo.BlockSize = bs;
// did it change the IV ? No!
Assert.AreEqual (BitConverter.ToString (iv), BitConverter.ToString (algo.IV), "IV");
}
}
[Test]
[ExpectedException (typeof (CryptographicException))]
public void InvalidBlockSize ()
{
SymmetricAlgorithm algo = SymmetricAlgorithm.Create ();
algo.BlockSize = 255;
}
[Test]
[ExpectedException (typeof (CryptographicException))]
public void InvalidFeedbackSize ()
{
SymmetricAlgorithm algo = SymmetricAlgorithm.Create ();
algo.FeedbackSize = algo.BlockSize + 1;
}
[Test]
[ExpectedException (typeof (ArgumentNullException))]
public void IV_Null ()
{
SymmetricAlgorithm algo = SymmetricAlgorithm.Create ();
algo.IV = null;
}
[Test]
[ExpectedException (typeof (CryptographicException))]
public void IV_None ()
{
SymmetricAlgorithm algo = SymmetricAlgorithm.Create ();
algo.IV = new byte [0]; // e.g. stream ciphers
}
[Test]
[ExpectedException (typeof (CryptographicException))]
public void IV_TooBig ()
{
SymmetricAlgorithm algo = SymmetricAlgorithm.Create ();
algo.IV = new byte [algo.BlockSize + 1];
}
[Test]
[ExpectedException (typeof (ArgumentNullException))]
public void Key_Null ()
{
SymmetricAlgorithm algo = SymmetricAlgorithm.Create ();
algo.Key = null;
}
[Test]
[ExpectedException (typeof (CryptographicException))]
public void Key_WrongSize ()
{
SymmetricAlgorithm algo = SymmetricAlgorithm.Create ();
algo.Key = new byte [255];
}
[Test]
[ExpectedException (typeof (CryptographicException))]
public void KeySize_WrongSize ()
{
SymmetricAlgorithm algo = SymmetricAlgorithm.Create ();
int n = 0;
while (algo.ValidKeySize (++n));
algo.KeySize = n;
}
[Test]
[ExpectedException (typeof (CryptographicException))]
public void InvalidCipherMode ()
{
SymmetricAlgorithm algo = SymmetricAlgorithm.Create ();
algo.Mode = (CipherMode) 255;
}
[Test]
[ExpectedException (typeof (CryptographicException))]
public void InvalidPaddingMode ()
{
SymmetricAlgorithm algo = SymmetricAlgorithm.Create ();
algo.Padding = (PaddingMode) 255;
}
[Test]
[ExpectedException (typeof (CryptographicException))]
public void FeedbackZero ()
{
// thanks to Yakk for the sample
DES des = new DESCryptoServiceProvider();
des.FeedbackSize = 0;
des.Padding = PaddingMode.None;
des.Mode = CipherMode.ECB;
des.Key = new byte [8] { 8, 7, 6, 5, 4, 3, 2, 1 };
ICryptoTransform enc = des.CreateEncryptor ();
byte[] response = new byte [16];
byte[] challenge = new byte [16] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 };
enc.TransformBlock (challenge, 0, challenge.Length, response, 0);
Assert.AreEqual ("7A-64-CD-1B-4F-EE-B5-92-54-90-53-E9-83-71-A6-0C", BitConverter.ToString (response));
}
}
}
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