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.
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package org.bouncycastle.pqc.crypto.gmss;

import java.security.SecureRandom;

import org.bouncycastle.crypto.KeyGenerationParameters;

public class GMSSKeyGenerationParameters
    extends KeyGenerationParameters
{

    private GMSSParameters params;

    public GMSSKeyGenerationParameters(
        SecureRandom random,
        GMSSParameters params)
    {
        // XXX key size?
        super(random, 1);
        this.params = params;
    }

    public GMSSParameters getParameters()
    {
        return params;
    }
}