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using System;
using System.Collections;
using Org.BouncyCastle.Asn1;
using Org.BouncyCastle.Asn1.X509;
using Org.BouncyCastle.Security;
using Org.BouncyCastle.Utilities;
using Org.BouncyCastle.X509.Store;
namespace Org.BouncyCastle.X509
{
/**
* Carrying class for an attribute certificate issuer.
*/
public class AttributeCertificateIssuer
//: CertSelector, Selector
: IX509Selector
{
internal readonly Asn1Encodable form;
/**
* Set the issuer directly with the ASN.1 structure.
*
* @param issuer The issuer
*/
public AttributeCertificateIssuer(
AttCertIssuer issuer)
{
form = issuer.Issuer;
}
public AttributeCertificateIssuer(
X509Name principal)
{
// form = new V2Form(GeneralNames.GetInstance(new DerSequence(new GeneralName(principal))));
form = new V2Form(new GeneralNames(new GeneralName(principal)));
}
private object[] GetNames()
{
GeneralNames name;
if (form is V2Form)
{
name = ((V2Form)form).IssuerName;
}
else
{
name = (GeneralNames)form;
}
GeneralName[] names = name.GetNames();
int count = 0;
for (int i = 0; i != names.Length; i++)
{
if (names[i].TagNo == GeneralName.DirectoryName)
{
++count;
}
}
object[] result = new object[count];
int pos = 0;
for (int i = 0; i != names.Length; i++)
{
if (names[i].TagNo == GeneralName.DirectoryName)
{
result[pos++] = X509Name.GetInstance(names[i].Name);
}
}
return result;
}
/// <summary>Return any principal objects inside the attribute certificate issuer object.</summary>
/// <returns>An array of IPrincipal objects (usually X509Principal).</returns>
public X509Name[] GetPrincipals()
{
object[] p = this.GetNames();
int count = 0;
for (int i = 0; i != p.Length; i++)
{
if (p[i] is X509Name)
{
++count;
}
}
X509Name[] result = new X509Name[count];
int pos = 0;
for (int i = 0; i != p.Length; i++)
{
if (p[i] is X509Name)
{
result[pos++] = (X509Name)p[i];
}
}
return result;
}
private bool MatchesDN(
X509Name subject,
GeneralNames targets)
{
GeneralName[] names = targets.GetNames();
for (int i = 0; i != names.Length; i++)
{
GeneralName gn = names[i];
if (gn.TagNo == GeneralName.DirectoryName)
{
try
{
if (X509Name.GetInstance(gn.Name).Equivalent(subject))
{
return true;
}
}
catch (Exception)
{
}
}
}
return false;
}
public object Clone()
{
return new AttributeCertificateIssuer(AttCertIssuer.GetInstance(form));
}
public bool Match(
X509Certificate x509Cert)
{
if (form is V2Form)
{
V2Form issuer = (V2Form) form;
if (issuer.BaseCertificateID != null)
{
return issuer.BaseCertificateID.Serial.HasValue(x509Cert.SerialNumber)
&& MatchesDN(x509Cert.IssuerDN, issuer.BaseCertificateID.Issuer);
}
return MatchesDN(x509Cert.SubjectDN, issuer.IssuerName);
}
return MatchesDN(x509Cert.SubjectDN, (GeneralNames) form);
}
public override bool Equals(
object obj)
{
if (obj == this)
{
return true;
}
if (!(obj is AttributeCertificateIssuer))
{
return false;
}
AttributeCertificateIssuer other = (AttributeCertificateIssuer)obj;
return this.form.Equals(other.form);
}
public override int GetHashCode()
{
return this.form.GetHashCode();
}
public bool Match(
object obj)
{
if (!(obj is X509Certificate))
{
return false;
}
//return Match((Certificate)obj);
return Match((X509Certificate)obj);
}
}
}
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