# phpman > man > openssl-gendsa(1)

[OPENSSL-GENDSA(1SSL)](https://www.chedong.com/phpMan.php/man/OPENSSL-GENDSA/1SSL/markdown)                           OpenSSL                          [OPENSSL-GENDSA(1SSL)](https://www.chedong.com/phpMan.php/man/OPENSSL-GENDSA/1SSL/markdown)



## NAME
       openssl-gendsa - generate a DSA private key from a set of parameters

## SYNOPSIS
       **openssl** **gendsa** [**-help**] [**-out** _filename_] [**-passout** _arg_] [**-aes128**] [**-aes192**] [**-aes256**]
       [**-aria128**] [**-aria192**] [**-aria256**] [**-camellia128**] [**-camellia192**] [**-camellia256**] [**-des**] [**-des3**]
       [**-idea**] [**-verbose**] [**-rand** _files_] [**-writerand** _file_] [**-engine** _id_] [**-provider** _name_]
       [**-provider-path** _path_] [**-propquery** _propq_] [_paramfile_]

## DESCRIPTION
       This command generates a DSA private key from a DSA parameter file (which will be typically
       generated by the [**openssl-dsaparam**(1)](https://www.chedong.com/phpMan.php/man/openssl-dsaparam/1/markdown) command).

## OPTIONS
### -help
           Print out a usage message.

### -out
           Output the key to the specified file. If this argument is not specified then standard
           output is used.

### -passout
           The passphrase used for the output file.  See [**openssl-passphrase-options**(1)](https://www.chedong.com/phpMan.php/man/openssl-passphrase-options/1/markdown).

### -aes128 -aes192 -aes256 -aria128 -aria192 -aria256 -camellia128 -camellia192
### -camellia256 -des -des3 -idea
           These options encrypt the private key with specified cipher before outputting it. A pass
           phrase is prompted for.  If none of these options is specified no encryption is used.

### -verbose
           Print extra details about the operations being performed.

### -rand -writerand
           See "Random State Options" in [**openssl**(1)](https://www.chedong.com/phpMan.php/man/openssl/1/markdown) for details.

### -engine
           See "Engine Options" in [**openssl**(1)](https://www.chedong.com/phpMan.php/man/openssl/1/markdown).  This option is deprecated.

       _paramfile_
           The DSA parameter file to use. The parameters in this file determine the size of the
           private key. DSA parameters can be generated and examined using the [**openssl-dsaparam**(1)](https://www.chedong.com/phpMan.php/man/openssl-dsaparam/1/markdown)
           command.

### -provider
### -provider-path
### -propquery
           See "Provider Options" in [**openssl**(1)](https://www.chedong.com/phpMan.php/man/openssl/1/markdown), [**provider**(7)](https://www.chedong.com/phpMan.php/man/provider/7/markdown), and [**property**(7)](https://www.chedong.com/phpMan.php/man/property/7/markdown).

## NOTES
       DSA key generation is little more than random number generation so it is much quicker that
       RSA key generation for example.

## SEE ALSO
       [**openssl**(1)](https://www.chedong.com/phpMan.php/man/openssl/1/markdown), [**openssl-genpkey**(1)](https://www.chedong.com/phpMan.php/man/openssl-genpkey/1/markdown), [**openssl-dsaparam**(1)](https://www.chedong.com/phpMan.php/man/openssl-dsaparam/1/markdown), [**openssl-dsa**(1)](https://www.chedong.com/phpMan.php/man/openssl-dsa/1/markdown), [**openssl-genrsa**(1)](https://www.chedong.com/phpMan.php/man/openssl-genrsa/1/markdown),
       [**openssl-rsa**(1)](https://www.chedong.com/phpMan.php/man/openssl-rsa/1/markdown)

## HISTORY
       The **-engine** option was deprecated in OpenSSL 3.0.

## COPYRIGHT
       Copyright 2000-2021 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 <<https://www.openssl.org/source/license.html>>.



3.0.2                                        2026-06-02                         [OPENSSL-GENDSA(1SSL)](https://www.chedong.com/phpMan.php/man/OPENSSL-GENDSA/1SSL/markdown)