Manual: openssl-pkeyparam

OPENSSL-PKEYPARAM(1SSL)				   OpenSSL			     OPENSSL-PKEYPARAM(1SSL)

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] [-provparam [name:]key=value] [-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	file 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.   The  output  filename  can	 be  the  same as the input filename, which leads to
	   replacing the file contents.	 Note that file I/O is not atomic. The output file is truncated	 and
	   then written.

       -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
       -provparam [name:]key=value
       -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 .

3.5.5						 2026-01-27			     OPENSSL-PKEYPARAM(1SSL)