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using System;
using Org.BouncyCastle.Utilities;
namespace Org.BouncyCastle.Asn1.X509
{
public class AttributeCertificateInfo
: Asn1Encodable
{
internal readonly DerInteger version;
internal readonly Holder holder;
internal readonly AttCertIssuer issuer;
internal readonly AlgorithmIdentifier signature;
internal readonly DerInteger serialNumber;
internal readonly AttCertValidityPeriod attrCertValidityPeriod;
internal readonly Asn1Sequence attributes;
internal readonly DerBitString issuerUniqueID;
internal readonly X509Extensions extensions;
public static AttributeCertificateInfo GetInstance(
Asn1TaggedObject obj,
bool isExplicit)
{
return GetInstance(Asn1Sequence.GetInstance(obj, isExplicit));
}
public static AttributeCertificateInfo GetInstance(
object obj)
{
if (obj is AttributeCertificateInfo)
{
return (AttributeCertificateInfo) obj;
}
if (obj is Asn1Sequence)
{
return new AttributeCertificateInfo((Asn1Sequence) obj);
}
throw new ArgumentException("unknown object in factory: " + Platform.GetTypeName(obj), "obj");
}
private AttributeCertificateInfo(
Asn1Sequence seq)
{
if (seq.Count < 6 || seq.Count > 9)
{
throw new ArgumentException("Bad sequence size: " + seq.Count);
}
int start;
if (seq[0] is DerInteger) // in version 1 certs version is DEFAULT v1(0)
{
this.version = DerInteger.GetInstance(seq[0]);
start = 1;
}
else
{
this.version = DerInteger.Zero;
start = 0;
}
this.holder = Holder.GetInstance(seq[start]);
this.issuer = AttCertIssuer.GetInstance(seq[start + 1]);
this.signature = AlgorithmIdentifier.GetInstance(seq[start + 2]);
this.serialNumber = DerInteger.GetInstance(seq[start + 3]);
this.attrCertValidityPeriod = AttCertValidityPeriod.GetInstance(seq[start + 4]);
this.attributes = Asn1Sequence.GetInstance(seq[start + 5]);
for (int i = start + 6; i < seq.Count; i++)
{
Asn1Encodable obj = seq[i];
if (obj is DerBitString bitString)
{
this.issuerUniqueID = bitString;
}
else if (obj is Asn1Sequence || obj is X509Extensions)
{
this.extensions = X509Extensions.GetInstance(seq[i]);
}
}
}
public DerInteger Version
{
get { return version; }
}
public Holder Holder
{
get { return holder; }
}
public AttCertIssuer Issuer
{
get { return issuer; }
}
public AlgorithmIdentifier Signature
{
get { return signature; }
}
public DerInteger SerialNumber
{
get { return serialNumber; }
}
public AttCertValidityPeriod AttrCertValidityPeriod
{
get { return attrCertValidityPeriod; }
}
public Asn1Sequence Attributes
{
get { return attributes; }
}
public DerBitString IssuerUniqueID
{
get { return issuerUniqueID; }
}
public X509Extensions Extensions
{
get { return extensions; }
}
/**
* Produce an object suitable for an Asn1OutputStream.
* <pre>
* AttributeCertificateInfo ::= Sequence {
* version AttCertVersion -- version is v2,
* holder Holder,
* issuer AttCertIssuer,
* signature AlgorithmIdentifier,
* serialNumber CertificateSerialNumber,
* attrCertValidityPeriod AttCertValidityPeriod,
* attributes Sequence OF Attr,
* issuerUniqueID UniqueIdentifier OPTIONAL,
* extensions Extensions OPTIONAL
* }
*
* AttCertVersion ::= Integer { v2(1) }
* </pre>
*/
public override Asn1Object ToAsn1Object()
{
Asn1EncodableVector v = new Asn1EncodableVector(9);
if (!version.HasValue(0))
{
v.Add(version);
}
v.Add(holder, issuer, signature, serialNumber, attrCertValidityPeriod, attributes);
v.AddOptional(issuerUniqueID, extensions);
return new DerSequence(v);
}
}
}
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