[B<-rev>]
[B<-out> I<file>]
[B<-inkey> I<file>]
-[B<-keyform> B<DER>|B<PEM>|B<ENGINE>]
+[B<-keyform> B<DER>|B<PEM>|B<P12>|B<ENGINE>]
[B<-pubin>]
[B<-certin>]
[B<-sign>]
The input key file, by default it should be an RSA private key.
-=item B<-keyform> B<DER>|B<PEM>|B<ENGINE>
+=item B<-keyform> B<DER>|B<PEM>|B<P12>|B<ENGINE>
The key format; the default is B<PEM>.
+The only value with effect is B<ENGINE>; all others have become obsolete.
See L<openssl(1)/Format Options> for details.
=item B<-pubin>
This command was deprecated in OpenSSL 3.0.
+All B<-keyform> values except B<ENGINE> have become obsolete in OpenSSL 3.0.0
+and have no effect.
+
=head1 COPYRIGHT
Copyright 2000-2020 The OpenSSL Project Authors. All Rights Reserved.