OtherCertID.cs :  » PDF » iTextSharp » Org » BouncyCastle » Asn1 » Esf » C# / CSharp Open Source

using System;

using Org.BouncyCastle.Asn1.X509;

namespace Org.BouncyCastle.Asn1.Esf{
  /// <remarks>
  /// <code>
  /// OtherCertID ::= SEQUENCE {
  ///   otherCertHash  OtherHash,
  ///   issuerSerial  IssuerSerial OPTIONAL
  /// }
  /// </code>
  /// </remarks>
  public class OtherCertID
    : Asn1Encodable
  {
    private readonly OtherHash    otherCertHash;
    private readonly IssuerSerial  issuerSerial;

    public static OtherCertID GetInstance(
      object obj)
    {
      if (obj == null || obj is OtherCertID)
        return (OtherCertID) obj;

      if (obj is Asn1Sequence)
        return new OtherCertID((Asn1Sequence) obj);

      throw new ArgumentException(
        "Unknown object in 'OtherCertID' factory: "
          + obj.GetType().Name,
        "obj");
    }

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

      this.otherCertHash = OtherHash.GetInstance(seq[0].ToAsn1Object());

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

    public OtherCertID(
      OtherHash otherCertHash)
      : this(otherCertHash, null)
    {
    }

    public OtherCertID(
      OtherHash    otherCertHash,
      IssuerSerial  issuerSerial)
    {
      if (otherCertHash == null)
        throw new ArgumentNullException("otherCertHash");

      this.otherCertHash = otherCertHash;
      this.issuerSerial = issuerSerial;
    }

    public OtherHash OtherCertHash
    {
      get { return otherCertHash; }
    }

    public IssuerSerial IssuerSerial
    {
      get { return issuerSerial; }
    }

    public override Asn1Object ToAsn1Object()
    {
      Asn1EncodableVector v = new Asn1EncodableVector(
        otherCertHash.ToAsn1Object());

      if (issuerSerial != null)
      {
        v.Add(issuerSerial.ToAsn1Object());
      }

      return new DerSequence(v);
    }

  }
}