Refactor -engine documentation

Common wording courtesy Richard Levitte.

Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com>
Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/10128)

1 files changed, 94 insertions, 0 deletions

diff --git a/doc/man1/openssl-pkeyparam.pod.in b/doc/man1/openssl-pkeyparam.pod.in
new file mode 100644
index 0000000000..4488119121
--- /dev/null
+++ b/doc/man1/openssl-pkeyparam.pod.in
@@ -0,0 +1,94 @@
+=pod
+
+=begin comment
+{- join("\n", @autowarntext) -}
+
+=end comment
+
+=head1 NAME
+
+openssl-pkeyparam - public key algorithm parameter processing tool
+
+=head1 SYNOPSIS
+
+B<openssl> B<pkeyparam>
+[B<-help>]
+[B<-in> I<filename>]
+[B<-out> I<filename>]
+[B<-text>]
+[B<-noout>]
+[B<-check>]
+{- $OpenSSL::safe::opt_engine_synopsis -}
+
+=for openssl ifdef engine
+
+=head1 DESCRIPTION
+
+This command processes public key algorithm parameters.
+They can be checked for correctness and their components printed out.
+
+=head1 OPTIONS
+
+=over 4
+
+=item B<-help>
+
+Print out a usage message.
+
+=item B<-in> I<filename>
+
+This specifies the input filename to read parameters from or standard input if
+this option is not specified.
+
+=item B<-out> I<filename>
+
+This specifies the output filename to write parameters to or standard output if
+this option is not specified.
+
+=item B<-text>
+
+Prints out the parameters in plain text in addition to the encoded version.
+
+=item B<-noout>
+
+Do not output the encoded version of the parameters.
+
+=item B<-check>
+
+This option checks the correctness of parameters.
+
+{- $OpenSSL::safe::opt_engine_item -}
+
+=back
+
+=head1 EXAMPLES
+
+Print out text version of parameters:
+
+ openssl pkeyparam -in param.pem -text
+
+=head1 NOTES
+
+There are no B<-inform> or B<-outform> options for this command because only
+PEM format is supported because the key type is determined by the PEM headers.
+
+=head1 SEE ALSO
+
+L<openssl(1)>,
+L<openssl-genpkey(1)>,
+L<openssl-rsa(1)>,
+L<openssl-pkcs8(1)>,
+L<openssl-dsa(1)>,
+L<openssl-genrsa(1)>,
+L<openssl-gendsa(1)>
+
+=head1 COPYRIGHT
+
+Copyright 2006-2019 The OpenSSL Project Authors. All Rights Reserved.
+
+Licensed under the Apache License 2.0 (the "License").  You may not use
+this file except in compliance with the License.  You can obtain a copy
+in the file LICENSE in the source distribution or at
+L<https://www.openssl.org/source/license.html>.
+
+=cut