<PackageReference Include="BouncyCastle.Cryptography" Version="2.3.0" />

KekIdentifier

public class KekIdentifier : Asn1Encodable
using System; namespace Org.BouncyCastle.Asn1.Cms { public class KekIdentifier : Asn1Encodable { private Asn1OctetString keyIdentifier; private Asn1GeneralizedTime date; private OtherKeyAttribute other; public Asn1OctetString KeyIdentifier => keyIdentifier; public Asn1GeneralizedTime Date => date; public OtherKeyAttribute Other => other; public static KekIdentifier GetInstance(object obj) { if (obj == null) return null; KekIdentifier kekIdentifier = obj as KekIdentifier; if (kekIdentifier != null) return kekIdentifier; return new KekIdentifier(Asn1Sequence.GetInstance(obj)); } public static KekIdentifier GetInstance(Asn1TaggedObject obj, bool explicitly) { return new KekIdentifier(Asn1Sequence.GetInstance(obj, explicitly)); } public KekIdentifier(byte[] keyIdentifier, Asn1GeneralizedTime date, OtherKeyAttribute other) { this.keyIdentifier = new DerOctetString(keyIdentifier); this.date = date; this.other = other; } public KekIdentifier(Asn1Sequence seq) { keyIdentifier = (Asn1OctetString)seq[0]; switch (seq.Count) { case 1: break; case 2: { Asn1GeneralizedTime asn1GeneralizedTime = seq[1] as Asn1GeneralizedTime; if (asn1GeneralizedTime != null) date = asn1GeneralizedTime; else other = OtherKeyAttribute.GetInstance(seq[2]); break; } case 3: date = (Asn1GeneralizedTime)seq[1]; other = OtherKeyAttribute.GetInstance(seq[2]); break; default: throw new ArgumentException("Invalid KekIdentifier"); } } public override Asn1Object ToAsn1Object() { Asn1EncodableVector asn1EncodableVector = new Asn1EncodableVector(keyIdentifier); asn1EncodableVector.AddOptional(date, other); return new DerSequence(asn1EncodableVector); } } }