gendsa - generate a DSA private key from a set of parameters
] [ -out filename
] [ -aes192
] [ -aes256
] [ -camellia128
] [ -camellia256
] [ -des
] [ -des3
] [ -rand file(s)
] [ -engine id
] [ paramfile
command generates a DSA private key from a DSA parameter file
(which will be typically generated by the openssl dsaparam
- 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.
- 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(s)
- a file or files containing random data used to seed the
random number generator, or an EGD socket (see RAND_egd(3)).
Multiple files can be specified separated by an OS-dependent character.
The separator is ; for MS-Windows, , for OpenVMS, and
: for all others.
- -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.
- 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
DSA key generation is little more than random number generation so it is much
quicker that RSA key generation for example.
Copyright 2000-2016 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