1*e71b7053SJung-uk Kim=pod 2*e71b7053SJung-uk Kim 3*e71b7053SJung-uk Kim=head1 NAME 4*e71b7053SJung-uk Kim 5*e71b7053SJung-uk KimDSA_dup_DH - create a DH structure out of DSA structure 6*e71b7053SJung-uk Kim 7*e71b7053SJung-uk Kim=head1 SYNOPSIS 8*e71b7053SJung-uk Kim 9*e71b7053SJung-uk Kim #include <openssl/dsa.h> 10*e71b7053SJung-uk Kim 11*e71b7053SJung-uk Kim DH *DSA_dup_DH(const DSA *r); 12*e71b7053SJung-uk Kim 13*e71b7053SJung-uk Kim=head1 DESCRIPTION 14*e71b7053SJung-uk Kim 15*e71b7053SJung-uk KimDSA_dup_DH() duplicates DSA parameters/keys as DH parameters/keys. q 16*e71b7053SJung-uk Kimis lost during that conversion, but the resulting DH parameters 17*e71b7053SJung-uk Kimcontain its length. 18*e71b7053SJung-uk Kim 19*e71b7053SJung-uk Kim=head1 RETURN VALUES 20*e71b7053SJung-uk Kim 21*e71b7053SJung-uk KimDSA_dup_DH() returns the new B<DH> structure, and NULL on error. The 22*e71b7053SJung-uk Kimerror codes can be obtained by L<ERR_get_error(3)>. 23*e71b7053SJung-uk Kim 24*e71b7053SJung-uk Kim=head1 NOTE 25*e71b7053SJung-uk Kim 26*e71b7053SJung-uk KimBe careful to avoid small subgroup attacks when using this. 27*e71b7053SJung-uk Kim 28*e71b7053SJung-uk Kim=head1 SEE ALSO 29*e71b7053SJung-uk Kim 30*e71b7053SJung-uk KimL<DH_new(3)>, L<DSA_new(3)>, L<ERR_get_error(3)> 31*e71b7053SJung-uk Kim 32*e71b7053SJung-uk Kim=head1 COPYRIGHT 33*e71b7053SJung-uk Kim 34*e71b7053SJung-uk KimCopyright 2000-2018 The OpenSSL Project Authors. All Rights Reserved. 35*e71b7053SJung-uk Kim 36*e71b7053SJung-uk KimLicensed under the OpenSSL license (the "License"). You may not use 37*e71b7053SJung-uk Kimthis file except in compliance with the License. You can obtain a copy 38*e71b7053SJung-uk Kimin the file LICENSE in the source distribution or at 39*e71b7053SJung-uk KimL<https://www.openssl.org/source/license.html>. 40*e71b7053SJung-uk Kim 41*e71b7053SJung-uk Kim=cut 42