1OPENSSL-DSAPARAM(1ossl)             OpenSSL            OPENSSL-DSAPARAM(1ossl)
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NAME

6       openssl-dsaparam - DSA parameter manipulation and generation
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SYNOPSIS

9       openssl dsaparam [-help] [-inform DER|PEM] [-outform DER|PEM] [-in
10       filename] [-out filename] [-noout] [-text] [-genkey] [-verbose] [-rand
11       files] [-writerand file] [-engine id] [-provider name] [-provider-path
12       path] [-propquery propq] [numbits]
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DESCRIPTION

15       This command is used to manipulate or generate DSA parameter files.
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17       DSA parameter generation can be a slow process and as a result the same
18       set of DSA parameters is often used to generate several distinct keys.
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OPTIONS

21       -help
22           Print out a usage message.
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24       -inform DER|PEM
25           The DSA parameters input format; unspecified by default.  See
26           openssl-format-options(1) for details.
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28       -outform DER|PEM
29           The DSA parameters output format; the default is PEM.  See
30           openssl-format-options(1) for details.
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32           Parameters are a sequence of ASN.1 INTEGERs: p, q, and g.  This is
33           compatible with RFC 2459 DSS-Parms structure.
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35       -in filename
36           This specifies the input filename to read parameters from or
37           standard input if this option is not specified. If the numbits
38           parameter is included then this option will be ignored.
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40       -out filename
41           This specifies the output filename parameters to. Standard output
42           is used if this option is not present. The output filename should
43           not be the same as the input filename.
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45       -noout
46           This option inhibits the output of the encoded version of the
47           parameters.
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49       -text
50           This option prints out the DSA parameters in human readable form.
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52       -genkey
53           This option will generate a DSA either using the specified or
54           generated parameters.
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56       -verbose
57           Print extra details about the operations being performed.
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59       -rand files, -writerand file
60           See "Random State Options" in openssl(1) for details.
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62       -engine id
63           See "Engine Options" in openssl(1).  This option is deprecated.
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65       numbits
66           This option specifies that a parameter set should be generated of
67           size numbits. It must be the last option. If this option is
68           included then the input file (if any) is ignored.
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70       -provider name
71       -provider-path path
72       -propquery propq
73           See "Provider Options" in openssl(1), provider(7), and property(7).
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SEE ALSO

76       openssl(1), openssl-pkeyparam(1), openssl-gendsa(1), openssl-dsa(1),
77       openssl-genrsa(1), openssl-rsa(1)
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HISTORY

80       The -engine option was deprecated in OpenSSL 3.0.
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82       The -C option was removed in OpenSSL 3.0.
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85       Copyright 2000-2021 The OpenSSL Project Authors. All Rights Reserved.
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87       Licensed under the Apache License 2.0 (the "License").  You may not use
88       this file except in compliance with the License.  You can obtain a copy
89       in the file LICENSE in the source distribution or at
90       <https://www.openssl.org/source/license.html>.
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943.0.5                             2022-11-01           OPENSSL-DSAPARAM(1ossl)
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