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/* Copyright (c) 2016, Isode Limited, London, England.
* All rights reserved.
*
* Acquisition and use of this software and related materials for any
* purpose requires a written license agreement from Isode Limited,
* or a written license from an organisation licensed by Isode Limited
* to grant such a license.
*
*/
package com.isode.stroke.tls;
import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.util.logging.Logger;
import java.util.logging.Level;
import com.isode.stroke.base.ByteArray;
import com.isode.stroke.tls.java.JavaCertificate;
public class JavaCertificateFactory implements CertificateFactory {
private final Logger logger = Logger.getLogger(this.getClass().getName());
private final java.security.cert.CertificateFactory jvmCertFactory;
public JavaCertificateFactory() {
java.security.cert.CertificateFactory temp = null;
try {
temp = java.security.cert.CertificateFactory.getInstance("X.509");
} catch (CertificateException e) {
logger.log(Level.WARNING,"Unable to generate X509 certificate factory",e);
temp = null;
}
jvmCertFactory = temp;
}
@Override
public Certificate createCertificateFromDER(ByteArray der) {
if (jvmCertFactory == null) {
return null;
}
InputStream derInputStream = new ByteArrayInputStream(der.getData());
try {
X509Certificate x509Cert = (X509Certificate)jvmCertFactory.generateCertificate(derInputStream);
return new JavaCertificate(x509Cert);
} catch (CertificateException e) {
logger.log(Level.WARNING,"Unable to generate certificate from byte array "+der,e);
return null;
} catch (ClassCastException e) {
// Should not get here as factory should return an x509 certificate
logger.log(Level.WARNING,"Unable to generate X509 certificate",e);
return null;
}
}
}
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