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.security.SecureRandom;

import org.bouncycastle.crypto.KeyGenerationParameters;

public class X448KeyGenerationParameters
    extends KeyGenerationParameters
{
    public X448KeyGenerationParameters(SecureRandom random)
    {
        super(random, 448);
    }
}