| 1 | =pod
|
|---|
| 2 |
|
|---|
| 3 | =head1 NAME
|
|---|
| 4 |
|
|---|
| 5 | DSA_size, DSA_bits, DSA_security_bits - get DSA signature size, key bits or security bits
|
|---|
| 6 |
|
|---|
| 7 | =head1 SYNOPSIS
|
|---|
| 8 |
|
|---|
| 9 | #include <openssl/dsa.h>
|
|---|
| 10 |
|
|---|
| 11 | int DSA_size(const DSA *dsa);
|
|---|
| 12 | int DSA_bits(const DSA *dsa);
|
|---|
| 13 | int DSA_security_bits(const DSA *dsa);
|
|---|
| 14 |
|
|---|
| 15 | =head1 DESCRIPTION
|
|---|
| 16 |
|
|---|
| 17 | DSA_size() returns the maximum size of an ASN.1 encoded DSA signature
|
|---|
| 18 | for key B<dsa> in bytes. It can be used to determine how much memory must
|
|---|
| 19 | be allocated for a DSA signature.
|
|---|
| 20 |
|
|---|
| 21 | B<dsa-E<gt>q> must not be B<NULL>.
|
|---|
| 22 |
|
|---|
| 23 | DSA_bits() returns the number of bits in key B<dsa>: this is the number
|
|---|
| 24 | of bits in the B<p> parameter.
|
|---|
| 25 |
|
|---|
| 26 | DSA_security_bits() returns the number of security bits of the given B<dsa>
|
|---|
| 27 | key. See L<BN_security_bits(3)>.
|
|---|
| 28 |
|
|---|
| 29 | =head1 RETURN VALUES
|
|---|
| 30 |
|
|---|
| 31 | DSA_size() returns the signature size in bytes.
|
|---|
| 32 |
|
|---|
| 33 | DSA_bits() returns the number of bits in the key.
|
|---|
| 34 |
|
|---|
| 35 | =head1 SEE ALSO
|
|---|
| 36 |
|
|---|
| 37 | L<DSA_new(3)>, L<DSA_sign(3)>
|
|---|
| 38 |
|
|---|
| 39 | =head1 COPYRIGHT
|
|---|
| 40 |
|
|---|
| 41 | Copyright 2000-2018 The OpenSSL Project Authors. All Rights Reserved.
|
|---|
| 42 |
|
|---|
| 43 | Licensed under the OpenSSL license (the "License"). You may not use
|
|---|
| 44 | this file except in compliance with the License. You can obtain a copy
|
|---|
| 45 | in the file LICENSE in the source distribution or at
|
|---|
| 46 | L<https://www.openssl.org/source/license.html>.
|
|---|
| 47 |
|
|---|
| 48 | =cut
|
|---|
