| =pod |
| |
| =head1 NAME |
| |
| DSA_size, DSA_bits, DSA_security_bits - get DSA signature size, key bits or security bits |
| |
| =head1 SYNOPSIS |
| |
| #include <openssl/dsa.h> |
| |
| int DSA_size(const DSA *dsa); |
| int DSA_bits(const DSA *dsa); |
| int DSA_security_bits(const DSA *dsa); |
| |
| =head1 DESCRIPTION |
| |
| DSA_size() returns the maximum size of an ASN.1 encoded DSA signature |
| for key B<dsa> in bytes. It can be used to determine how much memory must |
| be allocated for a DSA signature. |
| |
| B<dsa-E<gt>q> must not be B<NULL>. |
| |
| DSA_bits() returns the number of bits in key B<dsa>: this is the number |
| of bits in the B<p> parameter. |
| |
| DSA_security_bits() returns the number of security bits of the given B<dsa> |
| key. See L<BN_security_bits(3)>. |
| |
| =head1 RETURN VALUES |
| |
| DSA_size() returns the signature size in bytes. |
| |
| DSA_bits() returns the number of bits in the key. |
| |
| =head1 SEE ALSO |
| |
| L<DSA_new(3)>, L<DSA_sign(3)> |
| |
| =head1 COPYRIGHT |
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| Copyright 2000-2018 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 |
| L<https://www.openssl.org/source/license.html>. |
| |
| =cut |
