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using System;
using Org.BouncyCastle.Utilities;
namespace Org.BouncyCastle.Asn1.Cms
{
public class RecipientKeyIdentifier
: Asn1Encodable
{
public static RecipientKeyIdentifier GetInstance(object obj)
{
if (obj == null)
return null;
if (obj is RecipientKeyIdentifier recipientKeyIdentifier)
return recipientKeyIdentifier;
#pragma warning disable CS0618 // Type or member is obsolete
return new RecipientKeyIdentifier(Asn1Sequence.GetInstance(obj));
#pragma warning restore CS0618 // Type or member is obsolete
}
public static RecipientKeyIdentifier GetInstance(Asn1TaggedObject ato, bool explicitly)
{
#pragma warning disable CS0618 // Type or member is obsolete
return new RecipientKeyIdentifier(Asn1Sequence.GetInstance(ato, explicitly));
#pragma warning restore CS0618 // Type or member is obsolete
}
private Asn1OctetString subjectKeyIdentifier;
private Asn1GeneralizedTime date;
private OtherKeyAttribute other;
public RecipientKeyIdentifier(
Asn1OctetString subjectKeyIdentifier,
Asn1GeneralizedTime date,
OtherKeyAttribute other)
{
this.subjectKeyIdentifier = subjectKeyIdentifier;
this.date = date;
this.other = other;
}
public RecipientKeyIdentifier(
byte[] subjectKeyIdentifier)
: this(subjectKeyIdentifier, null, null)
{
}
public RecipientKeyIdentifier(
byte[] subjectKeyIdentifier,
Asn1GeneralizedTime date,
OtherKeyAttribute other)
{
this.subjectKeyIdentifier = new DerOctetString(subjectKeyIdentifier);
this.date = date;
this.other = other;
}
[Obsolete("Use 'GetInstance' instead")]
public RecipientKeyIdentifier(Asn1Sequence seq)
{
subjectKeyIdentifier = Asn1OctetString.GetInstance(seq[0]);
switch(seq.Count)
{
case 1:
break;
case 2:
if (seq[1] is Asn1GeneralizedTime asn1GeneralizedTime)
{
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 RecipientKeyIdentifier");
}
}
public Asn1OctetString SubjectKeyIdentifier
{
get { return subjectKeyIdentifier; }
}
public Asn1GeneralizedTime Date
{
get { return date; }
}
public OtherKeyAttribute OtherKeyAttribute
{
get { return other; }
}
/**
* Produce an object suitable for an Asn1OutputStream.
* <pre>
* RecipientKeyIdentifier ::= Sequence {
* subjectKeyIdentifier SubjectKeyIdentifier,
* date GeneralizedTime OPTIONAL,
* other OtherKeyAttribute OPTIONAL
* }
*
* SubjectKeyIdentifier ::= OCTET STRING
* </pre>
*/
public override Asn1Object ToAsn1Object()
{
Asn1EncodableVector v = new Asn1EncodableVector(subjectKeyIdentifier);
v.AddOptional(date, other);
return new DerSequence(v);
}
}
}
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