X509Attribute.cs :  » PDF » iTextSharp » Org » BouncyCastle » X509 » C# / CSharp Open Source

using System;

using Org.BouncyCastle.Asn1;
using Org.BouncyCastle.Asn1.X509;

namespace Org.BouncyCastle.X509{
  /**
   * Class for carrying the values in an X.509 Attribute.
   */
  public class X509Attribute
    : Asn1Encodable
  {
    private readonly AttributeX509 attr;

    /**
     * @param at an object representing an attribute.
     */
    internal X509Attribute(
      Asn1Encodable at)
    {
      this.attr = AttributeX509.GetInstance(at);
    }

    /**
     * Create an X.509 Attribute with the type given by the passed in oid and
     * the value represented by an ASN.1 Set containing value.
     *
     * @param oid type of the attribute
     * @param value value object to go into the atribute's value set.
     */
    public X509Attribute(
      string      oid,
      Asn1Encodable  value)
    {
      this.attr = new AttributeX509(new DerObjectIdentifier(oid), new DerSet(value));
    }

    /**
     * Create an X.59 Attribute with the type given by the passed in oid and the
     * value represented by an ASN.1 Set containing the objects in value.
     *
     * @param oid type of the attribute
     * @param value vector of values to go in the attribute's value set.
     */
    public X509Attribute(
      string              oid,
      Asn1EncodableVector value)
    {
      this.attr = new AttributeX509(new DerObjectIdentifier(oid), new DerSet(value));
    }

    public string Oid
    {
      get { return attr.AttrType.Id; }
    }

    public Asn1Encodable[] GetValues()
    {
      Asn1Set s = attr.AttrValues;
      Asn1Encodable[] values = new Asn1Encodable[s.Count];

      for (int i = 0; i != s.Count; i++)
      {
        values[i] = (Asn1Encodable)s[i];
      }

      return values;
    }

    public override Asn1Object ToAsn1Object()
    {
      return attr.ToAsn1Object();
    }
  }
}