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package org.bouncycastle.crypto.params;
import java.math.BigInteger;
import org.bouncycastle.math.ec.ECConstants;
import org.bouncycastle.math.ec.ECCurve;
import org.bouncycastle.math.ec.ECPoint;
import org.bouncycastle.util.Arrays;
public class ECDomainParameters
implements ECConstants
{
private ECCurve curve;
private byte[] seed;
private ECPoint G;
private BigInteger n;
private BigInteger h;
public ECDomainParameters(
ECCurve curve,
ECPoint G,
BigInteger n)
{
this(curve, G, n, ONE, null);
}
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)
{
this.curve = curve;
this.G = G.normalize();
this.n = n;
this.h = h;
this.seed = seed;
}
public ECCurve getCurve()
{
return curve;
}
public ECPoint getG()
{
return G;
}
public BigInteger getN()
{
return n;
}
public BigInteger getH()
{
return h;
}
public byte[] getSeed()
{
return Arrays.clone(seed);
}
public boolean equals(
Object obj)
{
if (this == obj)
{
return true;
}
if ((obj instanceof ECDomainParameters))
{
ECDomainParameters other = (ECDomainParameters)obj;
return this.curve.equals(other.curve) && this.G.equals(other.G) && this.n.equals(other.n) && this.h.equals(other.h);
}
return false;
}
public int hashCode()
{
int hc = curve.hashCode();
hc *= 37;
hc ^= G.hashCode();
hc *= 37;
hc ^= n.hashCode();
hc *= 37;
hc ^= h.hashCode();
return hc;
}
}
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