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//
// ProtectedMemoryCas.cs
// - CAS unit tests for System.Security.Cryptography.ProtectedMemory
//
// Author:
// Sebastien Pouliot <sebastien@ximian.com>
//
// Copyright (C) 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.
//
#if !MOBILE
using NUnit.Framework;
using System;
using System.Reflection;
using System.Security;
using System.Security.Cryptography;
using System.Security.Permissions;
using MonoTests.System.Security.Cryptography;
namespace MonoCasTests.System.Security.Cryptography {
[TestFixture]
[Category ("CAS")]
// problem with CSC when an assembly use permissions defined within itself
[Category ("NotWorking")]
public class ProtectedMemoryCas {
[SetUp]
public virtual void SetUp ()
{
if (!SecurityManager.SecurityEnabled)
Assert.Ignore ("SecurityManager.SecurityEnabled is OFF");
}
private bool IsEmpty (byte[] array)
{
int total = 0;
for (int i = 0; i < array.Length; i++)
total += array[i];
return (total == 0);
}
[Test]
[DataProtectionPermission (SecurityAction.PermitOnly, ProtectMemory = true, UnprotectMemory = true)]
public void UnitTestReuse ()
{
ProtectedMemoryTest unit = new ProtectedMemoryTest ();
unit.ProtectSameProcess ();
unit.ProtectSameLogon ();
unit.ProtectCrossProcess ();
unit.MemoryProtectionScope_All ();
}
[Test]
[DataProtectionPermission (SecurityAction.PermitOnly, ProtectMemory = true)]
// note: this implies that UnmanagedCode isn't allowed
public void Protect_PermitOnly_Protect ()
{
try {
byte[] data = new byte[16];
ProtectedMemory.Protect (data, MemoryProtectionScope.SameProcess);
Assert.IsFalse (IsEmpty (data), "SameProcess");
data = new byte[16];
ProtectedMemory.Protect (data, MemoryProtectionScope.SameLogon);
Assert.IsFalse (IsEmpty (data), "SameLogon");
data = new byte[16];
ProtectedMemory.Protect (data, MemoryProtectionScope.CrossProcess);
Assert.IsFalse (IsEmpty (data), "CrossProcess");
}
catch (PlatformNotSupportedException) {
Assert.Ignore ("Only supported under Windows 2000 SP3 and later");
}
}
[Test]
[DataProtectionPermission (SecurityAction.Deny, ProtectMemory = true)]
[ExpectedException (typeof (SecurityException))]
public void Protect_Deny_Protect ()
{
try {
ProtectedMemory.Protect (new byte[16], MemoryProtectionScope.SameProcess);
}
catch (PlatformNotSupportedException) {
Assert.Ignore ("Only supported under Windows 2000 SP3 and later");
}
}
[Test]
[DataProtectionPermission (SecurityAction.PermitOnly, UnprotectMemory = true)]
// note: this implies that UnmanagedCode isn't allowed
public void Unprotect_PermitOnly_Unprotect ()
{
try {
byte[] data = new byte[16];
ProtectedMemory.Unprotect (data, MemoryProtectionScope.SameProcess);
Assert.IsFalse (IsEmpty (data), "Unprotect unprotected");
}
catch (PlatformNotSupportedException) {
Assert.Ignore ("Only supported under Windows 2000 SP3 and later");
}
}
[Test]
[DataProtectionPermission (SecurityAction.Deny, UnprotectMemory = true)]
[ExpectedException (typeof (SecurityException))]
public void Unprotect_Deny_Unprotect ()
{
try {
ProtectedMemory.Unprotect (new byte[16], MemoryProtectionScope.SameProcess);
}
catch (PlatformNotSupportedException) {
Assert.Ignore ("Only supported under Windows 2000 SP3 and later");
}
}
[Test]
[DataProtectionPermission (SecurityAction.PermitOnly, ProtectMemory = true, UnprotectMemory = true)]
public void LinkDemand_PermitOnly_DataProtection ()
{
Type pm = typeof (ProtectedMemory);
byte[] data = new byte[16];
object[] parameters = new object[2] { data, MemoryProtectionScope.SameProcess };
try {
MethodInfo mi = pm.GetMethod ("Protect");
Assert.IsNotNull (mi, "Protect");
mi.Invoke (null, parameters);
Assert.IsFalse (IsEmpty (data), "Encrypted");
mi = pm.GetMethod ("Unprotect");
Assert.IsNotNull (mi, "Unprotect");
mi.Invoke (null, parameters);
Assert.IsTrue (IsEmpty (data), "Decrypted");
// so no LinkDemand are required (Demand are enough) and
// no check for UnmanagedCode are required
}
catch (TargetInvocationException tie) {
if (tie.InnerException is PlatformNotSupportedException)
Assert.Ignore ("Only supported under Windows 2000 SP 3 and later");
}
}
}
}
#endif
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