org.bouncycastle.crypto.params.ElGamalParameters.java Source code

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Here is the source code for org.bouncycastle.crypto.params.ElGamalParameters.java

Source

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;
    }
}