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using System;
using Org.BouncyCastle.Math;
using Org.BouncyCastle.Math.EC;
using Org.BouncyCastle.Utilities;
namespace Org.BouncyCastle.Crypto.Parameters
{
public class ECDomainParameters
{
internal ECCurve curve;
internal byte[] seed;
internal ECPoint g;
internal BigInteger n;
internal BigInteger h;
public ECDomainParameters(
ECCurve curve,
ECPoint g,
BigInteger n)
: this(curve, g, n, BigInteger.One)
{
}
public ECDomainParameters(
ECCurve curve,
ECPoint g,
BigInteger n,
BigInteger h)
: this(curve, g, n, h, null)
{
}
public ECDomainParameters(
ECCurve curve,
ECPoint g,
BigInteger n,
BigInteger h,
byte[] seed)
{
if (curve == null)
throw new ArgumentNullException("curve");
if (g == null)
throw new ArgumentNullException("g");
if (n == null)
throw new ArgumentNullException("n");
if (h == null)
throw new ArgumentNullException("h");
this.curve = curve;
this.g = g;
this.n = n;
this.h = h;
this.seed = Arrays.Clone(seed);
}
public ECCurve Curve
{
get { return curve; }
}
public ECPoint G
{
get { return g; }
}
public BigInteger N
{
get { return n; }
}
public BigInteger H
{
get { return h; }
}
public byte[] GetSeed()
{
return Arrays.Clone(seed);
}
public override bool Equals(
object obj)
{
if (obj == this)
return true;
ECDomainParameters other = obj as ECDomainParameters;
if (other == null)
return false;
return Equals(other);
}
protected bool Equals(
ECDomainParameters other)
{
return curve.Equals(other.curve)
&& g.Equals(other.g)
&& n.Equals(other.n)
&& h.Equals(other.h)
&& Arrays.AreEqual(seed, other.seed);
}
public override int GetHashCode()
{
return curve.GetHashCode()
^ g.GetHashCode()
^ n.GetHashCode()
^ h.GetHashCode()
^ Arrays.GetHashCode(seed);
}
}
}
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