2 // System.Security.Cryptography CryptoAPITransform.cs
5 // Thomas Neidhart (tome@sbox.tugraz.at)
6 // Sebastien Pouliot (sebastien@ximian.com)
8 // Copyright (C) 2004-2005 Novell, Inc (http://www.novell.com)
10 // Permission is hereby granted, free of charge, to any person obtaining
11 // a copy of this software and associated documentation files (the
12 // "Software"), to deal in the Software without restriction, including
13 // without limitation the rights to use, copy, modify, merge, publish,
14 // distribute, sublicense, and/or sell copies of the Software, and to
15 // permit persons to whom the Software is furnished to do so, subject to
16 // the following conditions:
18 // The above copyright notice and this permission notice shall be
19 // included in all copies or substantial portions of the Software.
21 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
22 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
23 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
24 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
25 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
26 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
27 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
30 using System.Runtime.InteropServices;
31 using System.Security.Permissions;
33 namespace System.Security.Cryptography {
35 // Note: This class isn't used by Mono as all algorithms are provided with
36 // 100% managed implementations.
39 public sealed class CryptoAPITransform : ICryptoTransform {
41 private bool m_disposed;
43 internal CryptoAPITransform ()
49 public bool CanReuseTransform {
53 public bool CanTransformMultipleBlocks {
57 public int InputBlockSize {
61 public IntPtr KeyHandle {
62 [SecurityPermission (SecurityAction.Demand, UnmanagedCode = true)]
63 get { return IntPtr.Zero; }
66 public int OutputBlockSize {
70 public void Dispose ()
73 GC.SuppressFinalize (this); // Finalization is now unnecessary
81 private void Dispose (bool disposing)
84 // dispose unmanaged objects
86 // dispose managed objects
92 public int TransformBlock (byte[] inputBuffer, int inputOffset, int inputCount, byte[] outputBuffer, int outputOffset)
97 public byte[] TransformFinalBlock (byte[] inputBuffer, int inputOffset, int inputCount)
99 // Reset (); should be called here before returning final data