using System; namespace Org.BouncyCastle.Asn1.X509 { public class PrivateKeyUsagePeriod : Asn1Encodable { private readonly Asn1GeneralizedTime m_notBefore; private readonly Asn1GeneralizedTime m_notAfter; public Asn1GeneralizedTime NotBefore => m_notBefore; public Asn1GeneralizedTime NotAfter => m_notAfter; public static PrivateKeyUsagePeriod GetInstance(object obj) { if (obj == null) return null; PrivateKeyUsagePeriod privateKeyUsagePeriod = obj as PrivateKeyUsagePeriod; if (privateKeyUsagePeriod != null) return privateKeyUsagePeriod; X509Extension x509Extension = obj as X509Extension; if (x509Extension != null) return GetInstance(X509Extension.ConvertValueToObject(x509Extension)); return new PrivateKeyUsagePeriod(Asn1Sequence.GetInstance(obj)); } public static PrivateKeyUsagePeriod GetInstance(Asn1TaggedObject taggedObject, bool declaredExplicit) { return new PrivateKeyUsagePeriod(Asn1Sequence.GetInstance(taggedObject, declaredExplicit)); } public static PrivateKeyUsagePeriod GetTagged(Asn1TaggedObject taggedObject, bool declaredExplicit) { return new PrivateKeyUsagePeriod(Asn1Sequence.GetTagged(taggedObject, declaredExplicit)); } private PrivateKeyUsagePeriod(Asn1Sequence seq) { int count = seq.Count; int sequencePosition = 0; if (count < 0 || count > 2) throw new ArgumentException("Bad sequence size: " + count.ToString(), "seq"); m_notBefore = Asn1Utilities.ReadOptionalContextTagged(seq, ref sequencePosition, 0, false, Asn1GeneralizedTime.GetTagged); m_notAfter = Asn1Utilities.ReadOptionalContextTagged(seq, ref sequencePosition, 1, false, Asn1GeneralizedTime.GetTagged); if (sequencePosition != count) throw new ArgumentException("Unexpected elements in sequence", "seq"); } public override Asn1Object ToAsn1Object() { Asn1EncodableVector asn1EncodableVector = new Asn1EncodableVector(2); asn1EncodableVector.AddOptionalTagged(false, 0, m_notBefore); asn1EncodableVector.AddOptionalTagged(false, 1, m_notAfter); return new DerSequence(asn1EncodableVector); } } }