<PackageReference Include="System.Security.Cryptography.Cng" Version="5.0.0-rc.1.20451.14" />

Microsoft.Win32.SafeHandles.SafeNCryptProviderHandle

Provides a safe handle that represents a key storage provider (NCRYPT_PROV_HANDLE).
namespace Microsoft.Win32.SafeHandles { public sealed class SafeNCryptProviderHandle : SafeNCryptHandle { public SafeNCryptProviderHandle(); } }