1GENDSA(1)                           OpenSSL                          GENDSA(1)
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NAME

6       openssl-gendsa, gendsa - generate a DSA private key from a set of
7       parameters
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SYNOPSIS

10       openssl gendsa [-help] [-out filename] [-aes128] [-aes192] [-aes256]
11       [-aria128] [-aria192] [-aria256] [-camellia128] [-camellia192]
12       [-camellia256] [-des] [-des3] [-idea] [-rand file...]  [-writerand
13       file] [-engine id] [paramfile]
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DESCRIPTION

16       The gendsa command generates a DSA private key from a DSA parameter
17       file (which will be typically generated by the openssl dsaparam
18       command).
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OPTIONS

21       -help
22           Print out a usage message.
23
24       -out filename
25           Output the key to the specified file. If this argument is not
26           specified then standard output is used.
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28       -aes128, -aes192, -aes256, -aria128, -aria192, -aria256, -camellia128,
29       -camellia192, -camellia256, -des, -des3, -idea
30           These options encrypt the private key with specified cipher before
31           outputting it. A pass phrase is prompted for.  If none of these
32           options is specified no encryption is used.
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34       -rand file...
35           A file or files containing random data used to seed the random
36           number generator.  Multiple files can be specified separated by an
37           OS-dependent character.  The separator is ; for MS-Windows, , for
38           OpenVMS, and : for all others.
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40       [-writerand file]
41           Writes random data to the specified file upon exit.  This can be
42           used with a subsequent -rand flag.
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44       -engine id
45           Specifying an engine (by its unique id string) will cause gendsa to
46           attempt to obtain a functional reference to the specified engine,
47           thus initialising it if needed. The engine will then be set as the
48           default for all available algorithms.
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50       paramfile
51           This option specifies the DSA parameter file to use. The parameters
52           in this file determine the size of the private key. DSA parameters
53           can be generated and examined using the openssl dsaparam command.
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NOTES

56       DSA key generation is little more than random number generation so it
57       is much quicker that RSA key generation for example.
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SEE ALSO

60       dsaparam(1), dsa(1), genrsa(1), rsa(1)
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63       Copyright 2000-2018 The OpenSSL Project Authors. All Rights Reserved.
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65       Licensed under the OpenSSL license (the "License").  You may not use
66       this file except in compliance with the License.  You can obtain a copy
67       in the file LICENSE in the source distribution or at
68       <https://www.openssl.org/source/license.html>.
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721.1.1l                            2021-09-15                         GENDSA(1)
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