OPENSSL-GENDSA(1ossl)

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) command).

OPTIONS

-help
    Print out a usage message.

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

-passout arg
    The passphrase used for the output file. See openssl-passphrase-options(1).

-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.

    Note that all options must be given before the paramfile argument. Otherwise they are ignored.

-verbose
    Print extra details about the operations being performed.

-rand files, -writerand file
    See "Random State Options" in openssl(1) for details.

-engine id
    See "Engine Options" in openssl(1). 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) command.

-provider name
-provider-path path
-propquery propq
    See "Provider Options" in openssl(1), provider(7), and property(7).

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), openssl-genpkey(1), openssl-dsaparam(1), openssl-dsa(1), openssl-genrsa(1), openssl-rsa(1)

HISTORY
The -engine option was deprecated in OpenSSL 3.0.

COPYRIGHT
Copyright 2000-2023 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>.