90 lines
2.2 KiB
C#
90 lines
2.2 KiB
C#
using System;
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using Org.BouncyCastle.Utilities;
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namespace Org.BouncyCastle.Asn1.Cms;
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public class RecipientKeyIdentifier : Asn1Encodable
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{
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private Asn1OctetString subjectKeyIdentifier;
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private DerGeneralizedTime date;
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private OtherKeyAttribute other;
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public Asn1OctetString SubjectKeyIdentifier => subjectKeyIdentifier;
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public DerGeneralizedTime Date => date;
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public OtherKeyAttribute OtherKeyAttribute => other;
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public RecipientKeyIdentifier(Asn1OctetString subjectKeyIdentifier, DerGeneralizedTime date, OtherKeyAttribute other)
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{
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this.subjectKeyIdentifier = subjectKeyIdentifier;
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this.date = date;
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this.other = other;
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}
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public RecipientKeyIdentifier(byte[] subjectKeyIdentifier)
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: this(subjectKeyIdentifier, null, null)
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{
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}
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public RecipientKeyIdentifier(byte[] subjectKeyIdentifier, DerGeneralizedTime date, OtherKeyAttribute other)
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{
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this.subjectKeyIdentifier = new DerOctetString(subjectKeyIdentifier);
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this.date = date;
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this.other = other;
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}
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public RecipientKeyIdentifier(Asn1Sequence seq)
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{
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subjectKeyIdentifier = Asn1OctetString.GetInstance(seq[0]);
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switch (seq.Count)
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{
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case 2:
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if (seq[1] is DerGeneralizedTime)
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{
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date = (DerGeneralizedTime)seq[1];
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}
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else
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{
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other = OtherKeyAttribute.GetInstance(seq[2]);
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}
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break;
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case 3:
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date = (DerGeneralizedTime)seq[1];
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other = OtherKeyAttribute.GetInstance(seq[2]);
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break;
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default:
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throw new ArgumentException("Invalid RecipientKeyIdentifier");
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case 1:
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break;
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}
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}
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public static RecipientKeyIdentifier GetInstance(Asn1TaggedObject ato, bool explicitly)
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{
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return GetInstance(Asn1Sequence.GetInstance(ato, explicitly));
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}
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public static RecipientKeyIdentifier GetInstance(object obj)
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{
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if (obj == null || obj is RecipientKeyIdentifier)
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{
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return (RecipientKeyIdentifier)obj;
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}
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if (obj is Asn1Sequence)
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{
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return new RecipientKeyIdentifier((Asn1Sequence)obj);
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}
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throw new ArgumentException("Invalid RecipientKeyIdentifier: " + Platform.GetTypeName(obj));
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}
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public override Asn1Object ToAsn1Object()
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{
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Asn1EncodableVector asn1EncodableVector = new Asn1EncodableVector(subjectKeyIdentifier);
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asn1EncodableVector.AddOptional(date, other);
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return new DerSequence(asn1EncodableVector);
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}
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}
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