[B<-out filename>]
[B<-serial>]
[B<-hash>]
+[B<-subject_hash>]
+[B<-issuer_hash>]
[B<-subject>]
[B<-issuer>]
[B<-nameopt option>]
outputs the certificate serial number.
-=item B<-hash>
+=item B<-subject_hash>
outputs the "hash" of the certificate subject name. This is used in OpenSSL to
form an index to allow certificates in a directory to be looked up by subject
name.
+=item B<-issuer_hash>
+
+outputs the "hash" of the certificate issuer name.
+
+=item B<-hash>
+
+synonym for "-hash" for backward compatibility reasons.
+
=item B<-subject>
outputs the subject name.