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Demoiselle Signature Core project
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/*
 * Demoiselle Framework
 * Copyright (C) 2016 SERPRO
 * ----------------------------------------------------------------------------
 * This file is part of Demoiselle Framework.
 *
 * Demoiselle Framework is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License version 3
 * as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License version 3
 * along with this program; if not,  see 
 * or write to the Free Software Foundation, Inc., 51 Franklin Street,
 * Fifth Floor, Boston, MA  02110-1301, USA.
 * ----------------------------------------------------------------------------
 * Este arquivo é parte do Framework Demoiselle.
 *
 * O Framework Demoiselle é um software livre; você pode redistribuí-lo e/ou
 * modificá-lo dentro dos termos da GNU LGPL versão 3 como publicada pela Fundação
 * do Software Livre (FSF).
 *
 * Este programa é distribuído na esperança que possa ser útil, mas SEM NENHUMA
 * GARANTIA; sem uma garantia implícita de ADEQUAÇÃO a qualquer MERCADO ou
 * APLICAÇÃO EM PARTICULAR. Veja a Licença Pública Geral GNU/LGPL em português
 * para maiores detalhes.
 *
 * Você deve ter recebido uma cópia da GNU LGPL versão 3, sob o título
 * "LICENCA.txt", junto com esse programa. Se não, acesse 
 * ou escreva para a Fundação do Software Livre (FSF) Inc.,
 * 51 Franklin St, Fifth Floor, Boston, MA 02111-1301, USA.
 */
package org.demoiselle.signer.core.timestamp;

import org.demoiselle.signer.core.exception.CertificateCoreException;

import java.security.PrivateKey;
import java.security.cert.Certificate;

/**
 * Methods for generate a TimeStamp based on  Timestamping Authority (TSA) service 
 * RFC 3161 
 * @author 07721825741
 */
public interface TimeStampGenerator {

	/**
	 * 
	 * @param content to be sign, if it is the parameter hash must to be null
	 * @param privateKey authorized to use a TSA service
	 * @param certificates trusted chain
	 * @param hash to be sign, if it is assigned the parameter content must to be null
	 * @throws CertificateCoreException exception
	 */
    void initialize(byte[] content, PrivateKey privateKey, Certificate[] certificates, byte[] hash) throws CertificateCoreException;

    /**
     * 
     * @return timestamp
     * @throws CertificateCoreException exception
     */
    byte[] generateTimeStamp() throws CertificateCoreException;

    /**
     * 
     * @param content to be sign, if it is the parameter hash must to be null
     * @param response signed timestamp from TSA
     *  @param hash to be sign, if it is assigned the parameter content must to be null
     * @throws CertificateCoreException exception
     */
    void validateTimeStamp(byte[] content, byte[] response, byte[] hash) throws CertificateCoreException;

}