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//
// PKCS1MaskGenerationMethodTest.cs - NUnit Test Cases for PKCS1MaskGenerationMethod
//
// 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 {
// References:
// a. PKCS#1: RSA Cryptography Standard
// http://www.rsasecurity.com/rsalabs/pkcs/pkcs-1/index.html
[TestFixture]
public class PKCS1MaskGenerationMethodTest {
protected PKCS1MaskGenerationMethod pkcs1;
[SetUp]
public void SetUp ()
{
pkcs1 = new PKCS1MaskGenerationMethod ();
}
public void AssertEquals (string msg, byte[] array1, byte[] array2)
{
AllTests.AssertEquals (msg, array1, array2);
}
[Test]
public void Properties ()
{
// default value
Assert.AreEqual ("SHA1", pkcs1.HashName, "PKCS1MaskGenerationMethod HashName(default)");
// return to default
pkcs1.HashName = null;
Assert.AreEqual ("SHA1", pkcs1.HashName, "PKCS1MaskGenerationMethod HashName(null)");
// bad hash accepted
pkcs1.HashName = "SHA2";
Assert.AreEqual ("SHA2", pkcs1.HashName, "PKCS1MaskGenerationMethod HashName(bad)");
// tostring
Assert.AreEqual ("System.Security.Cryptography.PKCS1MaskGenerationMethod", pkcs1.ToString ());
}
[Test]
public void EmptyMask ()
{
// pretty much useless but supported
byte[] random = { 0x01 };
byte[] mask = pkcs1.GenerateMask (random, 0);
Assert.AreEqual (0, mask.Length, "PKCS1MaskGenerationMethod Empty Mask");
}
[Test]
[ExpectedException (typeof (NullReferenceException))]
public void NullSeed ()
{
byte[] mask = pkcs1.GenerateMask (null, 10);
}
[Test]
[ExpectedException (typeof (OverflowException))]
public void NegativeReturnRequest ()
{
byte[] random = { 0x01 };
byte[] mask = pkcs1.GenerateMask (random, -1);
}
[Test]
public void Bug3777 ()
{
int maskLen = 0x3F;
int seedLen = 0x40;
byte [] seed = new byte [seedLen];
byte [] mask = pkcs1.GenerateMask (seed, maskLen);
Assert.AreEqual (maskLen, mask.Length, "Length");
}
// This test will FAIL with MS framework 1.0 and 1.1 as their MGF1 implementation is buggy
// see ftp://ftp.rsasecurity.com/pub/pkcs/pkcs-1/pkcs-1v2-1-vec.zip for RSA tests vector
[Test]
public void PKCS1v21TestVector ()
{
pkcs1.HashName = "SHA1";
// seed = random string of octets (well not random in the tests ;-)
byte[] seed = { 0xaa, 0xfd, 0x12, 0xf6, 0x59, 0xca, 0xe6, 0x34, 0x89, 0xb4, 0x79, 0xe5, 0x07, 0x6d, 0xde, 0xc2, 0xf0, 0x6c, 0xb5, 0x8f };
int LengthDB = 107;
// dbMask = MGF(seed, length(DB))
byte[] dbMask = pkcs1.GenerateMask (seed, LengthDB);
byte[] expectedDBMask = { 0x06, 0xe1, 0xde, 0xb2, 0x36, 0x9a, 0xa5, 0xa5, 0xc7, 0x07, 0xd8, 0x2c, 0x8e, 0x4e, 0x93, 0x24,
0x8a, 0xc7, 0x83, 0xde, 0xe0, 0xb2, 0xc0, 0x46, 0x26, 0xf5, 0xaf, 0xf9, 0x3e, 0xdc, 0xfb, 0x25,
0xc9, 0xc2, 0xb3, 0xff, 0x8a, 0xe1, 0x0e, 0x83, 0x9a, 0x2d, 0xdb, 0x4c, 0xdc, 0xfe, 0x4f, 0xf4,
0x77, 0x28, 0xb4, 0xa1, 0xb7, 0xc1, 0x36, 0x2b, 0xaa, 0xd2, 0x9a, 0xb4, 0x8d, 0x28, 0x69, 0xd5,
0x02, 0x41, 0x21, 0x43, 0x58, 0x11, 0x59, 0x1b, 0xe3, 0x92, 0xf9, 0x82, 0xfb, 0x3e, 0x87, 0xd0,
0x95, 0xae, 0xb4, 0x04, 0x48, 0xdb, 0x97, 0x2f, 0x3a, 0xc1, 0x4e, 0xaf, 0xf4, 0x9c, 0x8c, 0x3b,
0x7c, 0xfc, 0x95, 0x1a, 0x51, 0xec, 0xd1, 0xdd, 0xe6, 0x12, 0x64 };
AssertEquals ("PKCS1v21TestVector 1", expectedDBMask, dbMask);
// maskedDB = DB xor dbMask
byte[] DB = { 0xda, 0x39, 0xa3, 0xee, 0x5e, 0x6b, 0x4b, 0x0d, 0x32, 0x55, 0xbf, 0xef, 0x95, 0x60, 0x18, 0x90,
0xaf, 0xd8, 0x07, 0x09, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xd4, 0x36, 0xe9, 0x95, 0x69,
0xfd, 0x32, 0xa7, 0xc8, 0xa0, 0x5b, 0xbc, 0x90, 0xd3, 0x2c, 0x49 };
byte[] maskedDB = new byte [dbMask.Length];
for (int i = 0; i < dbMask.Length; i++)
maskedDB [i] = Convert.ToByte (DB [i] ^ dbMask [i]);
// seedMask = MGF(maskedDB, length(seed))
byte[] seedMask = pkcs1.GenerateMask (maskedDB, seed.Length);
byte[] expectedSeedMask = { 0x41, 0x87, 0x0b, 0x5a, 0xb0, 0x29, 0xe6, 0x57, 0xd9, 0x57, 0x50, 0xb5, 0x4c, 0x28, 0x3c, 0x08, 0x72, 0x5d, 0xbe, 0xa9 };
AssertEquals ("PKCS1v21TestVector 2", expectedSeedMask, seedMask);
}
}
}
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