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using System;
namespace Org.BouncyCastle.Asn1.X509
{
/**
* Policy qualifiers, used in the X509V3 CertificatePolicies
* extension.
*
* <pre>
* PolicyQualifierInfo ::= Sequence {
* policyQualifierId PolicyQualifierId,
* qualifier ANY DEFINED BY policyQualifierId }
* </pre>
*/
public class PolicyQualifierInfo
: Asn1Encodable
{
internal readonly DerObjectIdentifier policyQualifierId;
internal readonly Asn1Encodable qualifier;
/**
* Creates a new <code>PolicyQualifierInfo</code> instance.
*
* @param policyQualifierId a <code>PolicyQualifierId</code> value
* @param qualifier the qualifier, defined by the above field.
*/
public PolicyQualifierInfo(
DerObjectIdentifier policyQualifierId,
Asn1Encodable qualifier)
{
this.policyQualifierId = policyQualifierId;
this.qualifier = qualifier;
}
/**
* Creates a new <code>PolicyQualifierInfo</code> containing a
* cPSuri qualifier.
*
* @param cps the CPS (certification practice statement) uri as a
* <code>string</code>.
*/
public PolicyQualifierInfo(
string cps)
{
policyQualifierId = PolicyQualifierID.IdQtCps;
qualifier = new DerIA5String(cps);
}
/**
* Creates a new <code>PolicyQualifierInfo</code> instance.
*
* @param as <code>PolicyQualifierInfo</code> X509 structure
* encoded as an Asn1Sequence.
*/
private PolicyQualifierInfo(
Asn1Sequence seq)
{
if (seq.Count != 2)
throw new ArgumentException("Bad sequence size: " + seq.Count, "seq");
policyQualifierId = DerObjectIdentifier.GetInstance(seq[0]);
qualifier = seq[1];
}
public static PolicyQualifierInfo GetInstance(
object obj)
{
if (obj is PolicyQualifierInfo)
{
return (PolicyQualifierInfo) obj;
}
if (obj is Asn1Sequence)
{
return new PolicyQualifierInfo((Asn1Sequence) obj);
}
throw new ArgumentException("unknown object in GetInstance: " + obj.GetType().FullName, "obj");
}
public virtual DerObjectIdentifier PolicyQualifierId
{
get { return policyQualifierId; }
}
public virtual Asn1Encodable Qualifier
{
get { return qualifier; }
}
/**
* Returns a Der-encodable representation of this instance.
*
* @return a <code>Asn1Object</code> value
*/
public override Asn1Object ToAsn1Object()
{
return new DerSequence(policyQualifierId, qualifier);
}
}
}
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