<PackageReference Include="System.Security.Permissions" Version="11.0.0-preview.2.26159.112" />

System.Security.Permissions.RegistryPermissionAccess

Specifies the permitted access to registry keys and values.
namespace System.Security.Permissions { public enum RegistryPermissionAccess { AllAccess = 7, Create = 4, NoAccess = 0, Read = 1, Write = 2 } }