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iText, a free Java-PDF library
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/*
 * $Id: 7c242e25b17e08bee2ef3ccd09b418c915438fa9 $
 *
 * This file is part of the iText (R) project.
 * Copyright (c) 1998-2015 iText Group NV
 * Authors: Bruno Lowagie, Paulo Soares, et al.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License version 3
 * as published by the Free Software Foundation with the addition of the
 * following permission added to Section 15 as permitted in Section 7(a):
 * FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY
 * ITEXT GROUP. ITEXT GROUP DISCLAIMS THE WARRANTY OF NON INFRINGEMENT
 * OF THIRD PARTY RIGHTS
 *
 * 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 Affero General Public License for more details.
 * You should have received a copy of the GNU Affero General Public License
 * along with this program; if not, see http://www.gnu.org/licenses or write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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 * http://itextpdf.com/terms-of-use/
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 * The interactive user interfaces in modified source and object code versions
 * of this program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU Affero General Public License.
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 * In accordance with Section 7(b) of the GNU Affero General Public License,
 * a covered work must retain the producer line in every PDF that is created
 * or manipulated using iText.
 *
 * You can be released from the requirements of the license by purchasing
 * a commercial license. Buying such a license is mandatory as soon as you
 * develop commercial activities involving the iText software without
 * disclosing the source code of your own applications.
 * These activities include: offering paid services to customers as an ASP,
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 * For more information, please contact iText Software Corp. at this
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 */
package com.itextpdf.text.pdf.security;

import java.security.cert.X509Certificate;

/**
 * Interface for the OCSP Client
 */
public interface OcspClient {

	/**
	 * Gets an encoded byte array with OCSP validation. The method should not throw an exception.
     * @param checkCert to certificate to check
     * @param rootCert the parent certificate
     * @param url the url to get the verification. It it's null it will be taken
     * from the check cert or from other implementation specific source
	 * @return	a byte array with the validation or null if the validation could not be obtained
	 */
    byte[] getEncoded(X509Certificate checkCert, X509Certificate rootCert, String url);
}