System.Security.Cryptography.OidGroup public enum OidGroup Documentation All = 0 Attribute = 5 EncryptionAlgorithm = 2 EnhancedKeyUsage = 7 ExtensionOrAttribute = 6 HashAlgorithm = 1 KeyDerivationFunction = 10 Policy = 8 PublicKeyAlgorithm = 3 SignatureAlgorithm = 4 Template = 9