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using System;
using Org.BouncyCastle.Asn1.X509;
using Org.BouncyCastle.Utilities;
namespace Org.BouncyCastle.Asn1.Cms
{
public class OriginatorIdentifierOrKey
: Asn1Encodable, IAsn1Choice
{
public static OriginatorIdentifierOrKey GetInstance(
object o)
{
if (o == null)
return null;
if (o is OriginatorIdentifierOrKey originatorIdentifierOrKey)
return originatorIdentifierOrKey;
if (o is IssuerAndSerialNumber issuerAndSerialNumber)
return new OriginatorIdentifierOrKey(issuerAndSerialNumber);
if (o is SubjectKeyIdentifier subjectKeyIdentifier)
return new OriginatorIdentifierOrKey(subjectKeyIdentifier);
if (o is OriginatorPublicKey originatorPublicKey)
return new OriginatorIdentifierOrKey(originatorPublicKey);
if (o is Asn1TaggedObject taggedObject)
return new OriginatorIdentifierOrKey(Asn1Utilities.CheckTagClass(taggedObject, Asn1Tags.ContextSpecific));
throw new ArgumentException("Invalid OriginatorIdentifierOrKey: " + Platform.GetTypeName(o));
}
public static OriginatorIdentifierOrKey GetInstance(Asn1TaggedObject o, bool explicitly)
{
return Asn1Utilities.GetInstanceFromChoice(o, explicitly, GetInstance);
}
private readonly Asn1Encodable id;
public OriginatorIdentifierOrKey(IssuerAndSerialNumber id)
{
this.id = id;
}
public OriginatorIdentifierOrKey(SubjectKeyIdentifier id)
{
this.id = new DerTaggedObject(false, 0, id);
}
public OriginatorIdentifierOrKey(OriginatorPublicKey id)
{
this.id = new DerTaggedObject(false, 1, id);
}
private OriginatorIdentifierOrKey(Asn1TaggedObject id)
{
// TODO Add validation
this.id = id;
}
public Asn1Encodable ID
{
get { return id; }
}
public IssuerAndSerialNumber IssuerAndSerialNumber
{
get
{
if (id is IssuerAndSerialNumber)
{
return (IssuerAndSerialNumber)id;
}
return null;
}
}
public SubjectKeyIdentifier SubjectKeyIdentifier
{
get
{
if (id is Asn1TaggedObject && ((Asn1TaggedObject)id).TagNo == 0)
{
return SubjectKeyIdentifier.GetInstance((Asn1TaggedObject)id, false);
}
return null;
}
}
public OriginatorPublicKey OriginatorPublicKey
{
get
{
if (id is Asn1TaggedObject && ((Asn1TaggedObject)id).TagNo == 1)
{
return OriginatorPublicKey.GetInstance((Asn1TaggedObject)id, false);
}
return null;
}
}
/**
* Produce an object suitable for an Asn1OutputStream.
* <pre>
* OriginatorIdentifierOrKey ::= CHOICE {
* issuerAndSerialNumber IssuerAndSerialNumber,
* subjectKeyIdentifier [0] SubjectKeyIdentifier,
* originatorKey [1] OriginatorPublicKey
* }
*
* SubjectKeyIdentifier ::= OCTET STRING
* </pre>
*/
public override Asn1Object ToAsn1Object()
{
return id.ToAsn1Object();
}
}
}
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