using Org.BouncyCastle.Asn1; using System.Collections.Generic; namespace Org.BouncyCastle.X509 { public interface IX509Extension { ISet<string> GetCriticalExtensionOids(); ISet<string> GetNonCriticalExtensionOids(); Asn1OctetString GetExtensionValue(DerObjectIdentifier oid); } }