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)