public byte[] getExtensionValue(String oid) {
Extension ext = getExtension(new ASN1ObjectIdentifier(oid));
if (ext != null) {
try {
return ext.getExtnValue().getEncoded();
} catch (Exception e) {
throw new RuntimeException("error encoding " + e.toString());
}
}
return null;
}
public String toString() {
StringBuffer buf = new StringBuffer();
String nl = System.getProperty("line.separator");
buf.append(" userCertificate: ").append(this.getSerialNumber()).append(nl);
buf.append(" revocationDate: ").append(this.getRevocationDate()).append(nl);
buf.append(" certificateIssuer: ").append(this.getCertificateIssuer()).append(nl);
Extensions extensions = c.getExtensions();
if (extensions != null) {
Enumeration e = extensions.oids();
if (e.hasMoreElements()) {
buf.append(" crlEntryExtensions:").append(nl);
while (e.hasMoreElements()) {
ASN1ObjectIdentifier oid = (ASN1ObjectIdentifier) e.nextElement();
Extension ext = extensions.getExtension(oid);
if (ext.getExtnValue() != null) {
byte[] octs = ext.getExtnValue().getOctets();
ASN1InputStream dIn = new ASN1InputStream(octs);
buf.append(" critical(").append(ext.isCritical()).append(") ");
try {
if (oid.equals(X509Extension.reasonCode)) {
buf.append(CRLReason.getInstance(ASN1Enumerated.getInstance(dIn.readObject())))
.append(nl);
} else if (oid.equals(X509Extension.certificateIssuer)) {
buf.append("Certificate issuer: ")
.append(GeneralNames.getInstance(dIn.readObject()))
.append(nl);
} else {
buf.append(oid.getId());
buf.append(" value = ").append(ASN1Dump.dumpAsString(dIn.readObject())).append(nl);
}
} catch (Exception ex) {
buf.append(oid.getId());
buf.append(" value = ").append("*****").append(nl);
}
} else {
buf.append(nl);
}
}
}
}
return buf.toString();
}
private Set getExtensionOIDs(boolean critical) {
Extensions extensions = c.getExtensions();
if (extensions != null) {
Set set = new HashSet();
Enumeration e = extensions.oids();
while (e.hasMoreElements()) {
ASN1ObjectIdentifier oid = (ASN1ObjectIdentifier) e.nextElement();
Extension ext = extensions.getExtension(oid);
if (critical == ext.isCritical()) {
set.add(oid.getId());
}
}
return set;
}
return null;
}
private X500Name loadCertificateIssuer(boolean isIndirect, X500Name previousCertificateIssuer) {
if (!isIndirect) {
return null;
}
Extension ext = getExtension(Extension.certificateIssuer);
if (ext == null) {
return previousCertificateIssuer;
}
try {
GeneralName[] names = GeneralNames.getInstance(ext.getParsedValue()).getNames();
for (int i = 0; i < names.length; i++) {
if (names[i].getTagNo() == GeneralName.directoryName) {
return X500Name.getInstance(names[i].getName());
}
}
return null;
} catch (Exception e) {
return null;
}
}