<PackageReference Include="System.Security.Cryptography.Cng" Version="5.0.0-preview.8.20407.11" />

Microsoft.Win32.SafeHandles.SafeNCryptSecretHandle

Provides a safe handle that represents a secret agreement value (NCRYPT_SECRET_HANDLE).
namespace Microsoft.Win32.SafeHandles { public sealed class SafeNCryptSecretHandle : SafeNCryptHandle { public SafeNCryptSecretHandle(); } }