<PackageReference Include="System.Security.Cryptography.Cng" Version="5.0.0-preview.2.20160.6" />

System.Security.Cryptography.CngUIProtectionLevels

public enum CngUIProtectionLevels
namespace System.Security.Cryptography { public enum CngUIProtectionLevels { ForceHighProtection = 2, None = 0, ProtectKey = 1 } }