NAME

       openssl-pkeyparam - public key algorithm parameter processing command

SYNOPSIS

       openssl pkeyparam [-help] [-in filename] [-out filename] [-text] [-noout] [-check]
       [-engine id] [-provider name] [-provider-path path] [-propquery propq]

DESCRIPTION

       This 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.

       -check
           This option checks the correctness of parameters.

       -engine id
           See "Engine Options" in openssl(1).  This option is deprecated.

       -provider name
       -provider-path path
       -propquery propq
           See "Provider Options" in openssl(1), provider(7), and property(7).

EXAMPLES

       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

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

HISTORY

       The -engine option was deprecated in OpenSSL 3.0.

COPYRIGHT

       Copyright 2006-2021 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 <https://www.openssl.org/source/license.html>.