<PackageReference Include="System.Security.Permissions" Version="10.0.0-preview.5.25277.114" />

KeyContainerPermissionFlags

Specifies the type of key container access allowed.
namespace System.Security.Permissions { public enum KeyContainerPermissionFlags { NoFlags = 0, Create = 1, Open = 2, Delete = 4, Import = 16, Export = 32, Sign = 256, Decrypt = 512, ViewAcl = 4096, ChangeAcl = 8192, AllFlags = 13111 } }