PinAndClear.cs

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using System;
using System.Runtime.InteropServices;
 
namespace Internal.Cryptography;
 
internal struct PinAndClear : IDisposable
{
    private byte[] _data;
 
    private GCHandle _gcHandle;
 
    internal static PinAndClear Track(byte[] data)
    {
        PinAndClear result = default(PinAndClear);
        result._gcHandle = GCHandle.Alloc(data, GCHandleType.Pinned);
        result._data = data;
        return result;
    }
 
    public void Dispose()
    {
        Array.Clear(_data);
        _gcHandle.Free();
    }
}