isernogenerator.java

一套JAVA的CA证书签发系统.

/*************************************************************************
 *                                                                       *
 *  EJBCA: The OpenSource Certificate Authority                          *
 *                                                                       *
 *  This software is free software; you can redistribute it and/or       *
 *  modify it under the terms of the GNU Lesser General Public           *
 *  License as published by the Free Software Foundation; either         *
 *  version 2.1 of the License, or any later version.                    *
 *                                                                       *
 *  See terms of license at gnu.org.                                     *
 *                                                                       *
 *************************************************************************/
 
package se.anatom.ejbca.ca.sign;

import java.math.BigInteger;


/**
 * Interface for a serial number generator.
 *
 * @version $Id: ISernoGenerator.java,v 1.5 2004/04/16 07:38:58 anatom Exp $
 */
public interface ISernoGenerator {
    /**
     * Generates a number of serial number bytes.
     *
     * @return an array of serial number bytes.
     */
    public BigInteger getSerno();

    /**
     * Returns the number of serial number bytes generated by this generator.
     *
     * @return The number of serial number bytes generated by this generator.
     */
    public int getNoSernoBytes();

    /**
     * Sets an optional seed needed by the serno generator. This can be different things, for a
     * sequential generator it can for instance be the first number to be generated and for a
     * random generator it can be a random seed. The constructor may seed the generator enough so
     * this method may not be nessecary to call.
     *
     * @param the seed used to initilize the serno generator.
     */
    public void setSeed(long seed);
}