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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 1.7. Note: this package includes the IDEA and NTRU encryption algorithms.

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package org.bouncycastle.pqc.crypto.xmss;

import java.security.SecureRandom;

/**
 * Implementation of null PRNG returning zeroes only. For testing purposes
 * only(!).
 *
 */
public final class NullPRNG extends SecureRandom {

	private static final long serialVersionUID = 1L;

	public NullPRNG() {
		super();
	}

	@Override
	public void nextBytes(byte[] bytes) {
		for (int i = 0; i < bytes.length; i++) {
			bytes[i] = 0x00;
		}
	}
}