RecipientIdentifier.cs
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using System;
using Org.BouncyCastle.Utilities;
namespace Org.BouncyCastle.Asn1.Cms
{
public class RecipientIdentifier
: Asn1Encodable, IAsn1Choice
{
private Asn1Encodable id;
public RecipientIdentifier(
IssuerAndSerialNumber id)
{
this.id = id;
}
public RecipientIdentifier(
Asn1OctetString id)
{
this.id = new DerTaggedObject(false, 0, id);
}
public RecipientIdentifier(
Asn1Object id)
{
this.id = id;
}
/**
* return a RecipientIdentifier object from the given object.
*
* @param o the object we want converted.
* @exception ArgumentException if the object cannot be converted.
*/
public static RecipientIdentifier GetInstance(
object o)
{
if (o == null || o is RecipientIdentifier)
return (RecipientIdentifier)o;
if (o is IssuerAndSerialNumber)
return new RecipientIdentifier((IssuerAndSerialNumber) o);
if (o is Asn1OctetString)
return new RecipientIdentifier((Asn1OctetString) o);
if (o is Asn1Object)
return new RecipientIdentifier((Asn1Object) o);
throw new ArgumentException(
"Illegal object in RecipientIdentifier: " + Platform.GetTypeName(o));
}
public bool IsTagged
{
get { return (id is Asn1TaggedObject); }
}
public Asn1Encodable ID
{
get
{
if (id is Asn1TaggedObject)
{
return Asn1OctetString.GetInstance((Asn1TaggedObject) id, false);
}
return IssuerAndSerialNumber.GetInstance(id);
}
}
/**
* Produce an object suitable for an Asn1OutputStream.
* <pre>
* RecipientIdentifier ::= CHOICE {
* issuerAndSerialNumber IssuerAndSerialNumber,
* subjectKeyIdentifier [0] SubjectKeyIdentifier
* }
*
* SubjectKeyIdentifier ::= OCTET STRING
* </pre>
*/
public override Asn1Object ToAsn1Object()
{
return id.ToAsn1Object();
}
}
}