ElGamalParameter.cs :  » PDF » iTextSharp » Org » BouncyCastle » Asn1 » Oiw » C# / CSharp Open Source

using System;
using System.Collections;

using Org.BouncyCastle.Asn1;
using Org.BouncyCastle.Math;

namespace Org.BouncyCastle.Asn1.Oiw{
    public class ElGamalParameter
        : Asn1Encodable
    {
        internal DerInteger p, g;

    public ElGamalParameter(
            BigInteger  p,
            BigInteger  g)
        {
            this.p = new DerInteger(p);
            this.g = new DerInteger(g);
        }

    public ElGamalParameter(
            Asn1Sequence seq)
        {
      if (seq.Count != 2)
        throw new ArgumentException("Wrong number of elements in sequence", "seq");

      p = DerInteger.GetInstance(seq[0]);
      g = DerInteger.GetInstance(seq[1]);
        }

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

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

    public override Asn1Object ToAsn1Object()
        {
      return new DerSequence(p, g);
        }
    }
}