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.IX Title "DSA_GENERATE_KEY 3ssl"
.TH DSA_GENERATE_KEY 3ssl 2024-10-23 3.4.0 OpenSSL
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
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.nh
.SH NAME
DSA_generate_key \- generate DSA key pair
.SH SYNOPSIS
.IX Header "SYNOPSIS"
.Vb 1
\& #include <openssl/dsa.h>
.Ve
.PP
The following functions have been deprecated since OpenSSL 3.0, and can be
hidden entirely by defining \fBOPENSSL_API_COMPAT\fR with a suitable version value,
see \fBopenssl_user_macros\fR\|(7):
.PP
.Vb 1
\& int DSA_generate_key(DSA *a);
.Ve
.SH DESCRIPTION
.IX Header "DESCRIPTION"
All of the functions described on this page are deprecated.
Applications should instead use \fBEVP_PKEY_keygen_init\fR\|(3) and
\&\fBEVP_PKEY_keygen\fR\|(3) as described in \fBEVP_PKEY\-DSA\fR\|(7).
.PP
\&\fBDSA_generate_key()\fR expects \fBa\fR to contain DSA parameters. It generates
a new key pair and stores it in \fBa\->pub_key\fR and \fBa\->priv_key\fR.
.PP
The random generator must be seeded prior to calling \fBDSA_generate_key()\fR.
If the automatic seeding or reseeding of the OpenSSL CSPRNG fails due to
external circumstances (see \fBRAND\fR\|(7)), the operation will fail.
.SH "RETURN VALUES"
.IX Header "RETURN VALUES"
\&\fBDSA_generate_key()\fR returns 1 on success, 0 otherwise.
The error codes can be obtained by \fBERR_get_error\fR\|(3).
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fBDSA_new\fR\|(3), \fBERR_get_error\fR\|(3), \fBRAND_bytes\fR\|(3),
\&\fBDSA_generate_parameters_ex\fR\|(3)
.SH HISTORY
.IX Header "HISTORY"
This function was deprecated in OpenSSL 3.0.
.SH COPYRIGHT
.IX Header "COPYRIGHT"
Copyright 2000\-2021 The OpenSSL Project Authors. All Rights Reserved.
.PP
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>.