| =pod |
| |
| =head1 NAME |
| |
| DH_size, DH_bits - get Diffie-Hellman prime size |
| |
| =head1 SYNOPSIS |
| |
| #include <openssl/dh.h> |
| |
| int DH_size(const DH *dh); |
| |
| int DH_bits(const DH *dh); |
| |
| =head1 DESCRIPTION |
| |
| DH_size() returns the Diffie-Hellman prime size in bytes. It can be used |
| to determine how much memory must be allocated for the shared secret |
| computed by DH_compute_key(). |
| |
| DH_bits() returns the number of significant bits. |
| |
| B<dh> and B<dh-E<gt>p> must not be B<NULL>. |
| |
| =head1 RETURN VALUE |
| |
| The size. |
| |
| =head1 SEE ALSO |
| |
| L<DH_new(3)>, L<DH_generate_key(3)>, |
| L<BN_num_bits(3)> |
| |
| =head1 HISTORY |
| |
| DH_bits() was added in OpenSSL 1.1.0. |
| |
| =head1 COPYRIGHT |
| |
| Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved. |
| |
| Licensed under the OpenSSL license (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 |
