http://www.bouncycastle.org/java.html: The Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms. This jar contains JCE provider and lightweight API for the Bouncy Castle Cryptography APIs for JDK 1.5 to JDK 1.8.
  • The Legion of the Bouncy Castle Inc. 
package org.bouncycastle.crypto.params;

import java.math.BigInteger;

public class CramerShoupPublicKeyParameters extends CramerShoupKeyParameters {
	
	private BigInteger c, d, h; // public key group elements

	public CramerShoupPublicKeyParameters(CramerShoupParameters params, BigInteger c, BigInteger d, BigInteger h) {
		super(false, params);

		this.c = c;
		this.d = d;
		this.h = h;
	}

	public BigInteger getC() {
		return c;
	}
	
	public BigInteger getD() {
		return d;
	}
	
	public BigInteger getH() {
		return h;
	}

	public int hashCode() {
		return c.hashCode() ^ d.hashCode() ^ h.hashCode() ^ super.hashCode();
	}

	public boolean equals(Object obj) {
		if (!(obj instanceof CramerShoupPublicKeyParameters)) {
			return false;
		}

		CramerShoupPublicKeyParameters other = (CramerShoupPublicKeyParameters) obj;

		return other.getC().equals(c) && other.getD().equals(d) && other.getH().equals(h) && super.equals(obj);
	}
}