DsaPublicBcpgKey.cs :  » PDF » iTextSharp » Org » BouncyCastle » Bcpg » C# / CSharp Open Source

using System;

using Org.BouncyCastle.Math;

namespace Org.BouncyCastle.Bcpg{
  /// <remarks>Base class for a DSA public key.</remarks>
  public class DsaPublicBcpgKey
    : BcpgObject, IBcpgKey
    {
        private readonly MPInteger p, q, g, y;

    /// <param name="bcpgIn">The stream to read the packet from.</param>
    public DsaPublicBcpgKey(
      BcpgInputStream bcpgIn)
    {
      this.p = new MPInteger(bcpgIn);
      this.q = new MPInteger(bcpgIn);
      this.g = new MPInteger(bcpgIn);
      this.y = new MPInteger(bcpgIn);
    }

    public DsaPublicBcpgKey(
      BigInteger  p,
      BigInteger  q,
      BigInteger  g,
      BigInteger  y)
    {
      this.p = new MPInteger(p);
      this.q = new MPInteger(q);
      this.g = new MPInteger(g);
      this.y = new MPInteger(y);
    }

    /// <summary>The format, as a string, always "PGP".</summary>
    public string Format
    {
      get { return "PGP"; }
    }

    /// <summary>Return the standard PGP encoding of the key.</summary>
        public override byte[] GetEncoded()
        {
            try
            {
              return base.GetEncoded();
            }
            catch (Exception)
            {
                return null;
            }
        }

    public override void Encode(
      BcpgOutputStream bcpgOut)
    {
      bcpgOut.WriteObjects(p, q, g, y);
    }

    public BigInteger G
    {
      get { return g.Value; }
    }

    public BigInteger P
    {
      get { return p.Value; }
    }

    public BigInteger Q
    {
      get { return q.Value; }
    }

    public BigInteger Y
    {
      get { return y.Value; }
    }
    }
}