org.bouncycastle.crypto.params.ElGamalParameters Maven / Gradle / Ivy
package org.bouncycastle.crypto.params;
import java.math.BigInteger;
import org.bouncycastle.crypto.CipherParameters;
public class ElGamalParameters
implements CipherParameters
{
private BigInteger g;
private BigInteger p;
private int l;
public ElGamalParameters(
BigInteger p,
BigInteger g)
{
this(p, g, 0);
}
public ElGamalParameters(
BigInteger p,
BigInteger g,
int l)
{
this.g = g;
this.p = p;
this.l = l;
}
public BigInteger getP()
{
return p;
}
/**
* return the generator - g
*/
public BigInteger getG()
{
return g;
}
/**
* return private value limit - l
*/
public int getL()
{
return l;
}
public boolean equals(
Object obj)
{
if (!(obj instanceof ElGamalParameters))
{
return false;
}
ElGamalParameters pm = (ElGamalParameters)obj;
return pm.getP().equals(p) && pm.getG().equals(g) && pm.getL() == l;
}
public int hashCode()
{
return (getP().hashCode() ^ getG().hashCode()) + l;
}
}