RecipientKeyIdentifier
using System;
namespace Org.BouncyCastle.Asn1.Cms
{
public class RecipientKeyIdentifier : Asn1Encodable
{
private readonly Asn1OctetString m_subjectKeyIdentifier;
private readonly Asn1GeneralizedTime m_date;
private readonly OtherKeyAttribute m_other;
public Asn1OctetString SubjectKeyIdentifier => m_subjectKeyIdentifier;
public Asn1GeneralizedTime Date => m_date;
public OtherKeyAttribute OtherKeyAttribute => m_other;
public static RecipientKeyIdentifier GetInstance(object obj)
{
if (obj == null)
return null;
RecipientKeyIdentifier recipientKeyIdentifier = obj as RecipientKeyIdentifier;
if (recipientKeyIdentifier != null)
return recipientKeyIdentifier;
return new RecipientKeyIdentifier(Asn1Sequence.GetInstance(obj));
}
public static RecipientKeyIdentifier GetInstance(Asn1TaggedObject ato, bool explicitly)
{
return new RecipientKeyIdentifier(Asn1Sequence.GetInstance(ato, explicitly));
}
public static RecipientKeyIdentifier GetTagged(Asn1TaggedObject taggedObject, bool declaredExplicit)
{
return new RecipientKeyIdentifier(Asn1Sequence.GetTagged(taggedObject, declaredExplicit));
}
public RecipientKeyIdentifier(Asn1OctetString subjectKeyIdentifier, Asn1GeneralizedTime date, OtherKeyAttribute other)
{
if (subjectKeyIdentifier == null)
throw new ArgumentNullException("subjectKeyIdentifier");
m_subjectKeyIdentifier = subjectKeyIdentifier;
m_date = date;
m_other = other;
}
public RecipientKeyIdentifier(byte[] subjectKeyIdentifier)
: this(subjectKeyIdentifier, null, null)
{
}
public RecipientKeyIdentifier(byte[] subjectKeyIdentifier, Asn1GeneralizedTime date, OtherKeyAttribute other)
{
m_subjectKeyIdentifier = DerOctetString.FromContents(subjectKeyIdentifier);
m_date = date;
m_other = other;
}
[Obsolete("Use 'GetInstance' instead")]
public RecipientKeyIdentifier(Asn1Sequence seq)
{
int count = seq.Count;
int sequencePosition = 0;
if (count < 1 || count > 3)
throw new ArgumentException("Bad sequence size: " + count.ToString(), "seq");
m_subjectKeyIdentifier = Asn1OctetString.GetInstance(seq[sequencePosition++]);
m_date = Asn1Utilities.ReadOptional(seq, ref sequencePosition, Asn1GeneralizedTime.GetOptional);
m_other = Asn1Utilities.ReadOptional(seq, ref sequencePosition, OtherKeyAttribute.GetOptional);
if (sequencePosition != count)
throw new ArgumentException("Unexpected elements in sequence", "seq");
}
public override Asn1Object ToAsn1Object()
{
Asn1EncodableVector asn1EncodableVector = new Asn1EncodableVector(3);
asn1EncodableVector.Add(m_subjectKeyIdentifier);
asn1EncodableVector.AddOptional(m_date, m_other);
return new DerSequence(asn1EncodableVector);
}
}
}