CryptoThrowHelper.cs

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using System.Security.Cryptography;
 
namespace Internal.Cryptography;
 
internal static class CryptoThrowHelper
{
    private sealed class WindowsCryptographicException : CryptographicException
    {
        public WindowsCryptographicException(int hr, string message)
            : base(message)
        {
            base.HResult = hr;
        }
    }
 
    public static CryptographicException ToCryptographicException(this int hr)
    {
        string message = global::Interop.Kernel32.GetMessage(hr);
        if ((hr & 0x80000000u) != 2147483648u)
        {
            hr = (hr & 0xFFFF) | -2147024896;
        }
        return new WindowsCryptographicException(hr, message);
    }
}