<PackageReference Include="NETStandard.Library" Version="2.0.0" />

System.Security.Cryptography.X509Certificates.X509EnhancedKeyUsageExtension

namespace System.Security.Cryptography.X509Certificates { public enum X509KeyStorageFlags { DefaultKeySet = 0, Exportable = 4, MachineKeySet = 2, PersistKeySet = 16, UserKeySet = 1, UserProtected = 8 } } namespace System.Security.Cryptography.X509Certificates { public enum X509KeyUsageFlags { CrlSign = 2, DataEncipherment = 16, DecipherOnly = 32768, DigitalSignature = 128, EncipherOnly = 1, KeyAgreement = 8, KeyCertSign = 4, KeyEncipherment = 32, None = 0, NonRepudiation = 64 } }