openssl-dsaparam - DSA parameter manipulation and generation
openssl dsaparam [-help] [-inform DER|PEM] [-outform DER|PEM] [-in filename] [-out filename] [-noout] [-text] [-C] [-genkey] [-verbose] [-rand files] [-writerand file] [-engine id] [numbits]
This command has been deprecated. The openssl-pkeyparam(1) command should be used instead.
This command is used to manipulate or generate DSA parameter files.
DSA parameter generation can be a slow process and as a result the same set of DSA parameters is often used to generate several distinct keys.
Print out a usage message.
The input and formats; the default is PEM. See openssl(1)/Format Options for details.
Parameters are a sequence of ASN.1 INTEGERs: p, q, and g. This is compatible with RFC 2459 DSS-Parms structure.
This specifies the input filename to read parameters from or standard input if this option is not specified. If the numbits parameter is included then this option will be ignored.
This specifies the output filename parameters to. Standard output is used if this option is not present. The output filename should not be the same as the input filename.
This option inhibits the output of the encoded version of the parameters.
This option prints out the DSA parameters in human readable form.
This option converts the parameters into C code. The parameters can then
be loaded by calling the get_dsaXXX() function.
This option will generate a DSA either using the specified or generated parameters.
Print extra details about the operations being performed.
See openssl(1)/Random State Options for details.
See openssl(1)/Engine Options.
This option specifies that a parameter set should be generated of size numbits. It must be the last option. If this option is included then the input file (if any) is ignored.
openssl(1), openssl-pkeyparam(1), openssl-gendsa(1), openssl-dsa(1), openssl-genrsa(1), openssl-rsa(1)
This command was deprecated in OpenSSL 3.0.
Copyright 2000-2019 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.