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//
// RSAPKCS1KeyExchangeFormatterTest.cs - NUnit Test Cases for RSAPKCS1KeyExchangeFormatter
//
// Author:
// Sebastien Pouliot (sebastien@ximian.com)
//
// (C) 2002, 2003 Motus Technologies Inc. (http://www.motus.com)
// Copyright (C) 2004 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.Security.Cryptography;
namespace MonoTests.System.Security.Cryptography {
[TestFixture]
public class RSAPKCS1KeyExchangeFormatterTest {
protected static RSA key;
[SetUp]
public void SetUp ()
{
// generating a keypair is REALLY long and the framework
// makes sure that we generate one (even if create an object
// to import an exsting key)
if (key == null) {
key = RSA.Create ();
key.ImportParameters (AllTests.GetRsaKey (true));
}
}
public void AssertEquals (string msg, byte[] array1, byte[] array2)
{
AllTests.AssertEquals (msg, array1, array2);
}
[Test]
public void Properties ()
{
RSAPKCS1KeyExchangeFormatter keyex = new RSAPKCS1KeyExchangeFormatter ();
keyex.SetKey (key);
Assert.AreEqual("<enc:KeyEncryptionMethod enc:Algorithm=\"http://www.microsoft.com/xml/security/algorithm/PKCS1-v1.5-KeyEx\" xmlns:enc=\"http://www.microsoft.com/xml/security/encryption/v1.0\" />", keyex.Parameters);
// null (default)
Assert.IsNull (keyex.Rng, "RSAPKCS1KeyExchangeFormatter.Rng");
Assert.AreEqual("System.Security.Cryptography.RSAPKCS1KeyExchangeFormatter", keyex.ToString ());
}
[Test]
[ExpectedException (typeof (ArgumentNullException))]
public void KeyExchangeNull ()
{
AsymmetricKeyExchangeFormatter keyex = new RSAPKCS1KeyExchangeFormatter (key);
byte[] EM = keyex.CreateKeyExchange (null);
}
// TestExchangeMin (1)
[Test]
public void KeyExchangeMin ()
{
AsymmetricKeyExchangeFormatter keyex = new RSAPKCS1KeyExchangeFormatter (key);
byte[] M = { 0x01 };
byte[] EM = keyex.CreateKeyExchange (M);
AsymmetricKeyExchangeDeformatter keyback = new RSAPKCS1KeyExchangeDeformatter (key);
byte[] Mback = keyback.DecryptKeyExchange (EM);
AssertEquals ("RSAPKCS1KeyExchangeFormatter 1", M, Mback);
}
// test with a message 128 bits (16 bytes) long
[Test]
public void KeyExchange128bits ()
{
AsymmetricKeyExchangeFormatter keyex = new RSAPKCS1KeyExchangeFormatter (key);
byte[] M = { 0xd4, 0x36, 0xe9, 0x95, 0x69, 0xfd, 0x32, 0xa7, 0xc8, 0xa0, 0x5b, 0xbc, 0x90, 0xd3, 0x2c, 0x49 };
byte[] EM = keyex.CreateKeyExchange (M, typeof (Rijndael));
AsymmetricKeyExchangeDeformatter keyback = new RSAPKCS1KeyExchangeDeformatter (key);
byte[] Mback = keyback.DecryptKeyExchange (EM);
AssertEquals ("RSAPKCS1KeyExchangeFormatter 1", M, Mback);
}
// test with a message 160 bits (20 bytes) long
[Test]
public void KeyExchange160bits ()
{
AsymmetricKeyExchangeFormatter keyex = new RSAPKCS1KeyExchangeFormatter (key);
byte[] M = { 0xd4, 0x36, 0xe9, 0x95, 0x69, 0xfd, 0x32, 0xa7, 0xc8, 0xa0, 0x5b, 0xbc, 0x90, 0xd3, 0x2c, 0x49, 0x00, 0x00, 0x00, 0x00 };
byte[] EM = keyex.CreateKeyExchange (M);
AsymmetricKeyExchangeDeformatter keyback = new RSAPKCS1KeyExchangeDeformatter (key);
byte[] Mback = keyback.DecryptKeyExchange (EM);
AssertEquals ("RSAPKCS1KeyExchangeFormatter 1", M, Mback);
}
// Max = k - m - 11
[Test]
public void KeyExchangeMax()
{
AsymmetricKeyExchangeFormatter keyex = new RSAPKCS1KeyExchangeFormatter (key);
byte[] M = new byte [(key.KeySize >> 3)- 11];
byte[] EM = keyex.CreateKeyExchange (M);
AsymmetricKeyExchangeDeformatter keyback = new RSAPKCS1KeyExchangeDeformatter (key);
byte[] Mback = keyback.DecryptKeyExchange (EM);
AssertEquals ("RSAPKCS1KeyExchangeFormatter 1", M, Mback);
}
// TestExchangeTooBig
[Test]
[ExpectedException (typeof (CryptographicException))]
public void KeyExchangeTooBig()
{
AsymmetricKeyExchangeFormatter keyex = new RSAPKCS1KeyExchangeFormatter (key);
byte[] M = new byte [(key.KeySize >> 3)- 10];
byte[] EM = keyex.CreateKeyExchange (M);
}
[Test]
public void Rng ()
{
RSAPKCS1KeyExchangeFormatter keyex = new RSAPKCS1KeyExchangeFormatter (key);
Assert.IsNull (keyex.Rng, "Rng 1");
keyex.Rng = RandomNumberGenerator.Create ();
Assert.IsNotNull (keyex.Rng, "Rng 2");
}
[Test]
[ExpectedException (typeof (CryptographicUnexpectedOperationException))]
public void ExchangeNoKey ()
{
AsymmetricKeyExchangeFormatter keyex = new RSAPKCS1KeyExchangeFormatter ();
byte[] M = keyex.CreateKeyExchange (new byte [16]);
}
[Test]
[ExpectedException (typeof (InvalidCastException))]
public void ExchangeDSAKey ()
{
DSA dsa = DSA.Create ();
AsymmetricKeyExchangeFormatter keyex = new RSAOAEPKeyExchangeFormatter (dsa);
}
[Test]
[ExpectedException (typeof (ArgumentNullException))]
public void CreateWithNullKey ()
{
AsymmetricKeyExchangeFormatter keyex = new RSAPKCS1KeyExchangeFormatter (null);
}
[Test]
[ExpectedException (typeof (ArgumentNullException))]
public void CreateAndSetNullKey ()
{
AsymmetricKeyExchangeFormatter keyex = new RSAPKCS1KeyExchangeFormatter ();
keyex.SetKey (null);
}
}
}
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