NAME

       openssl-pkeyparam, pkeyparam - public key algorithm parameter processing tool

SYNOPSIS

       openssl pkeyparam [-help] [-in filename] [-out filename] [-text] [-noout] [-engine id] [-check]

DESCRIPTION

       The pkeyparam command processes public key algorithm parameters.  They can be checked for correctness and
       their components printed out.

OPTIONS

       -help
           Print out a usage message.

       -in filename
           This  specifies  the  input  filename to read parameters from or standard input if this option is not
           specified.

       -out filename
           This specifies the output filename to write parameters to or standard output if this  option  is  not
           specified.

       -text
           Prints out the parameters in plain text in addition to the encoded version.

       -noout
           Do not output the encoded version of the parameters.

       -engine id
           Specifying an engine (by its unique id string) will cause pkeyparam to attempt to obtain a functional
           reference to the specified engine, thus initialising it if needed. The engine will then be set as the
           default for all available algorithms.

       -check
           This option checks the correctness of parameters.

EXAMPLE

       Print out text version of parameters:

        openssl pkeyparam -in param.pem -text

NOTES

       There  are  no  -inform or -outform options for this command because only PEM format is supported because
       the key type is determined by the PEM headers.

SEE ALSO

       genpkey(1), rsa(1), pkcs8(1), dsa(1), genrsa(1), gendsa(1)

COPYRIGHT

       Copyright 2006-2018 The OpenSSL Project Authors. All Rights Reserved.

       Licensed under the OpenSSL license (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
       <https://www.openssl.org/source/license.html>.

1.1.1                                              2023-05-24                                    PKEYPARAM(1SSL)