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//------------------------------------------------------------------------------
// <copyright file="UnsafeNativeMethods.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//------------------------------------------------------------------------------
namespace Microsoft.Win32 {
using System;
using System.Security.Permissions;
using Microsoft.Win32.SafeHandles;
using System.Configuration;
// Safehandle for crypt context handles
[System.Security.SuppressUnmanagedCodeSecurityAttribute()]
internal sealed class SafeCryptContextHandle : SafeHandleZeroOrMinusOneIsInvalid {
[SecurityPermission(SecurityAction.LinkDemand, UnmanagedCode = true)]
internal SafeCryptContextHandle()
: base(true) {
}
[SecurityPermission(SecurityAction.LinkDemand, UnmanagedCode = true)]
internal SafeCryptContextHandle(IntPtr handle, bool ownsHandle)
: base(ownsHandle) {
SetHandle(handle);
}
override protected bool ReleaseHandle() {
if (handle != IntPtr.Zero) {
UnsafeNativeMethods.CryptReleaseContext(this, 0);
return true;
}
return false;
}
}
}
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