DuplicateSafeNCryptKeyHandle.cs

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using System;
using System.Security.Cryptography;
 
namespace Microsoft.Win32.SafeHandles;
 
internal sealed class DuplicateSafeNCryptKeyHandle : SafeNCryptKeyHandle
{
    private readonly SafeNCryptKeyHandle _original;
 
    public DuplicateSafeNCryptKeyHandle(SafeNCryptKeyHandle original)
    {
        bool success = false;
        original.DangerousAddRef(ref success);
        if (!success)
        {
            throw new CryptographicException();
        }
        SetHandle(original.DangerousGetHandle());
        _original = original;
    }
 
    protected override bool ReleaseHandle()
    {
        _original.DangerousRelease();
        SetHandle(IntPtr.Zero);
        return true;
    }
}