openssl dsaparam

DSA parameter manipulation and generation 

openssl command

SYNOPSIS

openssl dsaparam [-help] [-inform DER|PEM] [-outform DER|PEM] [-in filename] [-out filename] [-noout] [-text] [-genkey] [-verbose] [-quiet] [-rand file(s)] [-writerand file] [-engine id] [-provider name] [-provider-path path] [-propquery propq] [numbits] [numqbits]

DESCRIPTION

This command is used to manipulate or generate DSA parameter files.

DSA parameter generation can be a slow process and as a result the same set of DSA parameters is often used to generate several distinct keys.

Options

-help 

Print out a usage message.

-inform DER|PEM 

The DSA parameters input format; unspecified by ddefault. See See openssl format-options for deatils;

-outform DER|PEM 

The DSA parameters output format; unspecified by ddefault. See See openssl format-options for deatils;

-in filename 

specifies the input file name to read parameters from or standard input if this option is not specified. If the numbits parameter is included then this option will be ignored.

-out filename 

specifies the output file name parameters to. Standard output is used if this option is not present. The output file name should not be the same as the input file name.

-noout 

inhibits the output of the encoded version of the parameters.

-text 

prints out the DSA parameters in human readable form.

-genkey 

generates a DSA either using the specified or generated parameters.

-verbose 

Print extra details about the operations being performed.

-quiet 

Print fewer details about the operations being performed, which may be handy during batch scripts and pipelines.

-rand files 
-writerand file 

See Random State Options in openssl for details.

-engine id 

See Engine Options in openssl for details. This option is deprecated.

numbits 

this optional argument specifies that a parameter set should be generated of size numbits. If this argument is included, then the input file (if any) is ignored.

numqbits 

This optional argument specifies that a parameter should be generated with a subprime parameter of size numqbits. It must be the last argument. If this argument is included, then the input file (if any) is ignored.

-engine id 

specifying an engine (by its unique id string) will cause dsaparam 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.

-provider name 
-provider-path path 
-propquery propq 

See Provider Options in openssl for details.

NOTES

PEM format DSA parameters use the header and footer lines: 

 -----BEGIN DSA PARAMETERS-----
 -----END DSA PARAMETERS-----

DSA parameter generation is a slow process and as a result the same set of DSA parameters is often used to generate several distinct keys.

COPYRIGHT

Copyright 2000-2023 The OpenSSL Project Authors. All Rights Reserved.

op

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 here: OpenSSL.

AVAILABILITY

PTC MKS Toolkit for System Administrators
PTC MKS Toolkit for Developers
PTC MKS Toolkit for Interoperability
PTC MKS Toolkit for Professional Developers
PTC MKS Toolkit for Professional Developers 64-Bit Edition
PTC MKS Toolkit for Enterprise Developers
PTC MKS Toolkit for Enterprise Developers 64-Bit Edition

SEE ALSO

Commands:
openssl dsa, openssl gendsa, openssl genrsa, openssl rsa

PTC MKS Toolkit 10.5 Documentation Build 40.