Gets a Set of the OID strings for the extension(s) marked
CRITICAL in the certificate/CRL managed by the object
implementing this interface.
Here is sample code to get a Set of critical extensions from an
X509Certificate and print the OIDs:
<pre>{@code
X509Certificate cert = null;
try (InputStream inStrm = new FileInputStream("DER-encoded-Cert")) {
CertificateFactory cf = CertificateFactory.getInstance("X.509");
cert = (X509Certificate)cf.generateCertificate(inStrm);
}
Set!string critSet = cert.getCriticalExtensionOIDs();
if (critSet != null && !critSet.isEmpty()) {
System.out.println("Set of critical extensions:");
for (string oid : critSet) {
System.out.println(oid);
}
}
}</pre>
@return a Set (or an empty Set if none are marked critical) of
the extension OID strings for extensions that are marked critical.
If there are no extensions present at all, then this method returns
null.
Gets a Set of the OID strings for the extension(s) marked CRITICAL in the certificate/CRL managed by the object implementing this interface.
Here is sample code to get a Set of critical extensions from an X509Certificate and print the OIDs: <pre>{@code X509Certificate cert = null; try (InputStream inStrm = new FileInputStream("DER-encoded-Cert")) { CertificateFactory cf = CertificateFactory.getInstance("X.509"); cert = (X509Certificate)cf.generateCertificate(inStrm); }
Set!string critSet = cert.getCriticalExtensionOIDs(); if (critSet != null && !critSet.isEmpty()) { System.out.println("Set of critical extensions:"); for (string oid : critSet) { System.out.println(oid); } } }</pre> @return a Set (or an empty Set if none are marked critical) of the extension OID strings for extensions that are marked critical. If there are no extensions present at all, then this method returns null.