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using System;
using Org.BouncyCastle.Asn1;
namespace Org.BouncyCastle.Asn1.X509
{
public class AttributeCertificate
: Asn1Encodable
{
private readonly AttributeCertificateInfo acinfo;
private readonly AlgorithmIdentifier signatureAlgorithm;
private readonly DerBitString signatureValue;
/**
* @param obj
* @return
*/
public static AttributeCertificate GetInstance(
object obj)
{
if (obj is AttributeCertificate)
return (AttributeCertificate) obj;
if (obj != null)
return new AttributeCertificate(Asn1Sequence.GetInstance(obj));
return null;
}
public AttributeCertificate(
AttributeCertificateInfo acinfo,
AlgorithmIdentifier signatureAlgorithm,
DerBitString signatureValue)
{
this.acinfo = acinfo;
this.signatureAlgorithm = signatureAlgorithm;
this.signatureValue = signatureValue;
}
private AttributeCertificate(
Asn1Sequence seq)
{
if (seq.Count != 3)
throw new ArgumentException("Bad sequence size: " + seq.Count);
this.acinfo = AttributeCertificateInfo.GetInstance(seq[0]);
this.signatureAlgorithm = AlgorithmIdentifier.GetInstance(seq[1]);
this.signatureValue = DerBitString.GetInstance(seq[2]);
}
public AttributeCertificateInfo ACInfo
{
get { return acinfo; }
}
public AlgorithmIdentifier SignatureAlgorithm
{
get { return signatureAlgorithm; }
}
public DerBitString SignatureValue
{
get { return signatureValue; }
}
public byte[] GetSignatureOctets()
{
return signatureValue.GetOctets();
}
/**
* Produce an object suitable for an Asn1OutputStream.
* <pre>
* AttributeCertificate ::= Sequence {
* acinfo AttributeCertificateInfo,
* signatureAlgorithm AlgorithmIdentifier,
* signatureValue BIT STRING
* }
* </pre>
*/
public override Asn1Object ToAsn1Object()
{
return new DerSequence(acinfo, signatureAlgorithm, signatureValue);
}
}
}
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