GENDSA(1SSL) OpenSSL GENDSA(1SSL)
NAME
openssl-gendsa, gendsa - generate a DSA private key from a set of
parameters
SYNOPSIS
openssl gendsa [-help] [-out filename] [-aes128] [-aes192] [-aes256]
[-aria128] [-aria192] [-aria256] [-camellia128] [-camellia192]
[-camellia256] [-des] [-des3] [-idea] [-rand file...] [-writerand
file] [-engine id] [paramfile]
DESCRIPTION
The gendsa command generates a DSA private key from a DSA parameter
file (which will be typically generated by the openssl dsaparam
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.
-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.
-rand file...
A file or files containing random data used to seed the random
number generator. Multiple files can be specified separated by an
OS-dependent character. The separator is ; for MS-Windows, , for
OpenVMS, and : for all others.
[-writerand file]
Writes random data to the specified file upon exit. This can be
used with a subsequent -rand flag.
-engine id
Specifying an engine (by its unique id string) will cause gendsa 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.
paramfile
This option specifies 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 command.
NOTES
DSA key generation is little more than random number generation so it
is much quicker that RSA key generation for example.
SEE ALSO
dsaparam(1), dsa(1), genrsa(1), rsa(1)
COPYRIGHT
Copyright 2000-2018 The OpenSSL Project Authors. All Rights Reserved.
Licensed under the OpenSSL license (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>.
1.1.1g 2020-04-21 GENDSA(1SSL)