PKEYPARAM(1)

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.

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

COPYRIGHT
Copyright 2006-2019 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>.