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/**
* DSS - Digital Signature Services
* Copyright (C) 2015 European Commission, provided under the CEF programme
*
* This file is part of the "DSS - Digital Signature Services" project.
*
* This library 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 (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
package eu.europa.esig.dss.crl;
import eu.europa.esig.dss.model.x509.CertificateToken;
import java.io.IOException;
import java.math.BigInteger;
import java.security.cert.X509CRLEntry;
import java.util.Iterator;
import java.util.ServiceLoader;
/**
* The utils for dealing with CRLs
*/
public class CRLUtils {
private CRLUtils() {
// empty
}
/**
* The provided implementation of CRL utils
*/
private static ICRLUtils impl;
static {
ServiceLoader loader = ServiceLoader.load(ICRLUtils.class);
Iterator iterator = loader.iterator();
if (!iterator.hasNext()) {
throw new ExceptionInInitializerError(
"No implementation found for ICRLUtils in classpath, please choose between dss-crl-parser-stream or dss-crl-parser-x509crl");
}
impl = iterator.next();
}
/**
* Takes binaries and returns DER encoded {@code CRLBinary}
*
* @param binaries byte array representing an encoded CRL
* @return DER encoded {@link CRLBinary}
*/
public static CRLBinary buildCRLBinary(final byte[] binaries) {
return impl.buildCRLBinary(binaries);
}
/**
* This method verifies and creates: the signature of the CRL, the key usage of its signing certificate and the coherence
* between the subject names of the CRL signing certificate and the issuer name of the certificate for which the
* verification of the revocation data is carried out. A dedicated object based on {@code CRLValidity} is created
* and accordingly updated.
*
* @param crlBinary
* {@code CRLBinary} of the CRL to be created (cannot be null)
* @param issuerToken
* {@code CertificateToken} used to sign the {@code X509CRL} (cannot be null)
* @return {@code CRLValidity}
* @throws IOException
* if an IO error occurred
*/
public static CRLValidity buildCRLValidity(final CRLBinary crlBinary, final CertificateToken issuerToken) throws IOException {
return impl.buildCRLValidity(crlBinary, issuerToken);
}
/**
* This method verifies the revocation status for a given serial number
*
* @param crlValidity
* the CRL Validity
* @param serialNumber
* the certificate serial number to search
* @return the X509CRLEntry with the revocation date, the reason, or null if the serial number is not found
*/
public static X509CRLEntry getRevocationInfo(CRLValidity crlValidity, BigInteger serialNumber) {
return impl.getRevocationInfo(crlValidity, serialNumber);
}
}