ECPublicKeyParameters.cs :  » PDF » iTextSharp » Org » BouncyCastle » Crypto » Parameters » C# / CSharp Open Source

using System;
using System.Globalization;

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

namespace Org.BouncyCastle.Crypto.Parameters{
    public class ECPublicKeyParameters
    : ECKeyParameters
    {
        private readonly ECPoint q;

    public ECPublicKeyParameters(
      ECPoint        q,
      ECDomainParameters  parameters)
      : this("EC", q, parameters)
    {
    }

    [Obsolete("Use version with explicit 'algorithm' parameter")]
    public ECPublicKeyParameters(
      ECPoint        q,
      DerObjectIdentifier publicKeyParamSet)
      : base("ECGOST3410", false, publicKeyParamSet)
    {
      if (q == null)
        throw new ArgumentNullException("q");

      this.q = q;
    }

    public ECPublicKeyParameters(
      string        algorithm,
      ECPoint        q,
      ECDomainParameters  parameters)
      : base(algorithm, false, parameters)
        {
      if (q == null)
        throw new ArgumentNullException("q");

      this.q = q;
    }

    public ECPublicKeyParameters(
      string        algorithm,
      ECPoint        q,
      DerObjectIdentifier publicKeyParamSet)
      : base(algorithm, false, publicKeyParamSet)
        {
      if (q == null)
        throw new ArgumentNullException("q");

      this.q = q;
    }

    public ECPoint Q
        {
      get { return q; }
        }

    public override bool Equals(object obj)
        {
      if (obj == this)
        return true;

      ECPublicKeyParameters other = obj as ECPublicKeyParameters;

      if (other == null)
        return false;

      return Equals(other);
        }

    protected bool Equals(
      ECPublicKeyParameters other)
    {
      return q.Equals(other.q) && base.Equals(other);
    }

    public override int GetHashCode()
        {
            return q.GetHashCode() ^ base.GetHashCode();
        }
    }
}