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 org.bouncycastle.crypto.KeyGenerationParameters;

import java.security.SecureRandom;

public class GOST3410KeyGenerationParameters
        extends KeyGenerationParameters
{
        private GOST3410Parameters    params;

        public GOST3410KeyGenerationParameters(
            SecureRandom    random,
            GOST3410Parameters   params)
        {
            super(random, params.getP().bitLength() - 1);

            this.params = params;
        }

        public GOST3410Parameters getParameters()
        {
            return params;
        }
}