1=pod 2 3=head1 NAME 4 5DH_new_by_nid, DH_get_nid - get or find DH named parameters 6 7=head1 SYNOPSIS 8 9 #include <openssl/dh.h> 10 DH *DH_new_by_nid(int nid); 11 int *DH_get_nid(const DH *dh); 12 13=head1 DESCRIPTION 14 15DH_new_by_nid() creates and returns a DH structure containing named parameters 16B<nid>. Currently B<nid> must be B<NID_ffdhe2048>, B<NID_ffdhe3072>, 17B<NID_ffdhe4096>, B<NID_ffdhe6144> or B<NID_ffdhe8192>. 18 19DH_get_nid() determines if the parameters contained in B<dh> match 20any named set. It returns the NID corresponding to the matching parameters or 21B<NID_undef> if there is no match. 22 23=head1 RETURN VALUES 24 25DH_new_by_nid() returns a set of DH parameters or B<NULL> if an error occurred. 26 27DH_get_nid() returns the NID of the matching set of parameters or 28B<NID_undef> if there is no match. 29 30=head1 COPYRIGHT 31 32Copyright 2017 The OpenSSL Project Authors. All Rights Reserved. 33 34Licensed under the OpenSSL license (the "License"). You may not use 35this file except in compliance with the License. You can obtain a copy 36in the file LICENSE in the source distribution or at 37L<https://www.openssl.org/source/license.html>. 38 39=cut 40