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PKEYPARAM(1)                        OpenSSL                       PKEYPARAM(1)



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

LIBRARY
       libcrypto, -lcrypto

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), openssl_rsa(1), openssl_pkcs8(1), openssl_dsa(1),
       openssl_genrsa(1), openssl_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                             2018-09-17                      PKEYPARAM(1)