OpenSSL

Cryptography and SSL/TLS Toolkit

DSA_generate_key

NAME

DSA_generate_key - generate DSA key pair

SYNOPSIS

#include <openssl/dsa.h>

The following functions have been deprecated since OpenSSL 3.0, and can be hidden entirely by defining OPENSSL_API_COMPAT with a suitable version value, see openssl_user_macros(7):

int DSA_generate_key(DSA *a);

DESCRIPTION

All of the functions described on this page are deprecated. Applications should instead use EVP_PKEY_keygen_init(3) and EVP_PKEY_keygen(3) as described in EVP_PKEY-DSA(7).

DSA_generate_key() expects a to contain DSA parameters. It generates a new key pair and stores it in a->pub_key and a->priv_key.

The random generator must be seeded prior to calling DSA_generate_key(). If the automatic seeding or reseeding of the OpenSSL CSPRNG fails due to external circumstances (see RAND(7)), the operation will fail.

RETURN VALUES

DSA_generate_key() returns 1 on success, 0 otherwise. The error codes can be obtained by ERR_get_error(3).

SEE ALSO

DSA_new(3), ERR_get_error(3), RAND_bytes(3), DSA_generate_parameters_ex(3)

HISTORY

This function was deprecated in OpenSSL 3.0.

Copyright 2000-2021 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.