import java.io.FileInputStream;
import java.security.cert.CertificateFactory;
import java.security.cert.X509CRL;
import java.security.cert.X509CRLEntry;
import java.util.Iterator;
import java.util.Set;
public class MainClass {
public static void main(String[] args) throws Exception {
CertificateFactory cf = CertificateFactory.getInstance("X.509");
FileInputStream in = new FileInputStream(args[0]);
X509CRL crl = (X509CRL) cf.generateCRL(in);
Set s = crl.getRevokedCertificates();
if (s != null && s.isEmpty() == false) {
Iterator t = s.iterator();
while (t.hasNext()) {
X509CRLEntry entry = (X509CRLEntry) t.next();
System.out.println("serial number = " + entry.getSerialNumber().toString(16));
System.out.println("revocation date = " + entry.getRevocationDate());
System.out.println("extensions = " + entry.hasExtensions());
}
}
in.close();
}
}