109 lines
2.8 KiB
C#
109 lines
2.8 KiB
C#
//
|
|
// System.Security.Cryptography CryptoAPITransform.cs
|
|
//
|
|
// Authors:
|
|
// Thomas Neidhart (tome@sbox.tugraz.at)
|
|
// Sebastien Pouliot (sebastien@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 System.Runtime.InteropServices;
|
|
using System.Security.Permissions;
|
|
|
|
namespace System.Security.Cryptography {
|
|
|
|
// Note: This class isn't used by Mono as all algorithms are provided with
|
|
// 100% managed implementations.
|
|
|
|
[ComVisible (true)]
|
|
public sealed class CryptoAPITransform : ICryptoTransform {
|
|
|
|
private bool m_disposed;
|
|
|
|
internal CryptoAPITransform ()
|
|
{
|
|
m_disposed = false;
|
|
}
|
|
|
|
|
|
public bool CanReuseTransform {
|
|
get { return true; }
|
|
}
|
|
|
|
public bool CanTransformMultipleBlocks {
|
|
get { return true; }
|
|
}
|
|
|
|
public int InputBlockSize {
|
|
get { return 0; }
|
|
}
|
|
|
|
public IntPtr KeyHandle {
|
|
[SecurityPermission (SecurityAction.Demand, UnmanagedCode = true)]
|
|
get { return IntPtr.Zero; }
|
|
}
|
|
|
|
public int OutputBlockSize {
|
|
get { return 0; }
|
|
}
|
|
|
|
public void Dispose ()
|
|
{
|
|
Dispose (true);
|
|
GC.SuppressFinalize (this); // Finalization is now unnecessary
|
|
}
|
|
|
|
public void Clear ()
|
|
{
|
|
Dispose (false);
|
|
}
|
|
|
|
private void Dispose (bool disposing)
|
|
{
|
|
if (!m_disposed) {
|
|
// dispose unmanaged objects
|
|
if (disposing) {
|
|
// dispose managed objects
|
|
}
|
|
m_disposed = true;
|
|
}
|
|
}
|
|
|
|
public int TransformBlock (byte[] inputBuffer, int inputOffset, int inputCount, byte[] outputBuffer, int outputOffset)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
public byte[] TransformFinalBlock (byte[] inputBuffer, int inputOffset, int inputCount)
|
|
{
|
|
// Reset (); should be called here before returning final data
|
|
return null;
|
|
}
|
|
|
|
[ComVisible (false)]
|
|
public void Reset ()
|
|
{
|
|
}
|
|
}
|
|
}
|