1=pod
2
3=head1 NAME
4
5openssl-pkeyparam,
6pkeyparam - public key algorithm parameter processing tool
7
8=head1 SYNOPSIS
9
10B<openssl> B<pkeyparam>
11[B<-help>]
12[B<-in filename>]
13[B<-out filename>]
14[B<-text>]
15[B<-noout>]
16[B<-engine id>]
17[B<-check>]
18
19=head1 DESCRIPTION
20
21The B<pkeyparam> command processes public key algorithm parameters.
22They can be checked for correctness and their components printed out.
23
24=head1 OPTIONS
25
26=over 4
27
28=item B<-help>
29
30Print out a usage message.
31
32=item B<-in filename>
33
34This specifies the input filename to read parameters from or standard input if
35this option is not specified.
36
37=item B<-out filename>
38
39This specifies the output filename to write parameters to or standard output if
40this option is not specified.
41
42=item B<-text>
43
44Prints out the parameters in plain text in addition to the encoded version.
45
46=item B<-noout>
47
48Do not output the encoded version of the parameters.
49
50=item B<-engine id>
51
52Specifying an engine (by its unique B<id> string) will cause B<pkeyparam>
53to attempt to obtain a functional reference to the specified engine,
54thus initialising it if needed. The engine will then be set as the default
55for all available algorithms.
56
57=item B<-check>
58
59This option checks the correctness of parameters.
60
61=back
62
63=head1 EXAMPLES
64
65Print out text version of parameters:
66
67 openssl pkeyparam -in param.pem -text
68
69=head1 NOTES
70
71There are no B<-inform> or B<-outform> options for this command because only
72PEM format is supported because the key type is determined by the PEM headers.
73
74=head1 SEE ALSO
75
76L<genpkey(1)>, L<rsa(1)>, L<pkcs8(1)>,
77L<dsa(1)>, L<genrsa(1)>, L<gendsa(1)>
78
79=head1 COPYRIGHT
80
81Copyright 2006-2019 The OpenSSL Project Authors. All Rights Reserved.
82
83Licensed under the OpenSSL license (the "License").  You may not use
84this file except in compliance with the License.  You can obtain a copy
85in the file LICENSE in the source distribution or at
86L<https://www.openssl.org/source/license.html>.
87
88=cut
89