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262c00882a
The manual pages require for some API functions that the 'random number generator must be seeded' before calling the function. Initially, this was meant literally, i.e. the OpenSSL CSPRNG had to be seeded manually before calling these functions. Since version 1.1.1, the CSPRNG is seeded automatically on first use, so it's not the responsibility of the programmer anymore. Still, he needs to be aware that the seeding might fail. Reviewed-by: Paul Dale <paul.dale@oracle.com> Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org> (Merged from https://github.com/openssl/openssl/pull/9257)
42 lines
1.1 KiB
Plaintext
42 lines
1.1 KiB
Plaintext
=pod
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=head1 NAME
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DSA_generate_key - generate DSA key pair
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=head1 SYNOPSIS
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#include <openssl/dsa.h>
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int DSA_generate_key(DSA *a);
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=head1 DESCRIPTION
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DSA_generate_key() expects B<a> to contain DSA parameters. It generates
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a new key pair and stores it in B<a-E<gt>pub_key> and B<a-E<gt>priv_key>.
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The random generator must be seeded prior to calling DSA_generate_key().
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If the automatic seeding or reseeding of the OpenSSL CSPRNG fails due to
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external circumstances (see L<RAND(7)>), the operation will fail.
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=head1 RETURN VALUES
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DSA_generate_key() returns 1 on success, 0 otherwise.
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The error codes can be obtained by L<ERR_get_error(3)>.
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=head1 SEE ALSO
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L<DSA_new(3)>, L<ERR_get_error(3)>, L<RAND_bytes(3)>,
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L<DSA_generate_parameters_ex(3)>
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=head1 COPYRIGHT
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Copyright 2000-2018 The OpenSSL Project Authors. All Rights Reserved.
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Licensed under the Apache License 2.0 (the "License"). You may not use
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this file except in compliance with the License. You can obtain a copy
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in the file LICENSE in the source distribution or at
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L<https://www.openssl.org/source/license.html>.
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=cut
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