SigningCertificateV2.cs :  » PDF » iTextSharp » Org » BouncyCastle » Asn1 » Ess » C# / CSharp Open Source

using System;

using Org.BouncyCastle.Asn1.X509;

namespace Org.BouncyCastle.Asn1.Ess{
  public class SigningCertificateV2
    : Asn1Encodable
  {
    private readonly Asn1Sequence certs;
    private readonly Asn1Sequence policies;

    public static SigningCertificateV2 GetInstance(
      object o)
    {
      if (o == null || o is SigningCertificateV2)
        return (SigningCertificateV2) o;

      if (o is Asn1Sequence)
        return new SigningCertificateV2((Asn1Sequence) o);

      throw new ArgumentException(
        "unknown object in 'SigningCertificateV2' factory : "
        + o.GetType().Name + ".");
    }

    private SigningCertificateV2(
      Asn1Sequence seq)
    {
      if (seq.Count < 1 || seq.Count > 2)
        throw new ArgumentException("Bad sequence size: " + seq.Count, "seq");

      this.certs = Asn1Sequence.GetInstance(seq[0].ToAsn1Object());

      if (seq.Count > 1)
      {
        this.policies = Asn1Sequence.GetInstance(seq[1].ToAsn1Object());
      }
    }

    public SigningCertificateV2(
      EssCertIDv2[] certs)
    {
      this.certs = new DerSequence(certs);
    }

    public SigningCertificateV2(
      EssCertIDv2[]    certs,
      PolicyInformation[]  policies)
    {
      this.certs = new DerSequence(certs);

      if (policies != null)
      {
        this.policies = new DerSequence(policies);
      }
    }

    public EssCertIDv2[] GetCerts()
    {
      EssCertIDv2[] certIds = new EssCertIDv2[certs.Count];
      for (int i = 0; i != certs.Count; i++)
      {
        certIds[i] = EssCertIDv2.GetInstance(certs[i]);
      }
      return certIds;
    }

    public PolicyInformation[] GetPolicies()
    {
      if (policies == null)
        return null;

      PolicyInformation[] policyInformations = new PolicyInformation[policies.Count];
      for (int i = 0; i != policies.Count; i++)
      {
        policyInformations[i] = PolicyInformation.GetInstance(policies[i]);
      }
      return policyInformations;
    }

    /**
     * The definition of SigningCertificateV2 is
     * <pre>
     * SigningCertificateV2 ::=  SEQUENCE {
     *      certs        SEQUENCE OF EssCertIDv2,
     *      policies     SEQUENCE OF PolicyInformation OPTIONAL
     * }
     * </pre>
     * id-aa-signingCertificateV2 OBJECT IDENTIFIER ::= { iso(1)
     *    member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs9(9)
     *    smime(16) id-aa(2) 47 }
     */
    public override Asn1Object ToAsn1Object()
    {
      Asn1EncodableVector v = new Asn1EncodableVector(certs);

      if (policies != null)
      {
        v.Add(policies);
      }

      return new DerSequence(v);
    }
  }
}