NAME

       DSA_dup_DH - create a DH structure out of DSA structure

SYNOPSIS

        #include <openssl/dsa.h>

        DH *DSA_dup_DH(const DSA *r);

DESCRIPTION

       DSA_dup_DH() duplicates DSA parameters/keys as DH parameters/keys. q is lost during that
       conversion, but the resulting DH parameters contain its length.

RETURN VALUES

       DSA_dup_DH() returns the new DH structure, and NULL on error. The error codes can be
       obtained by ERR_get_error(3).

NOTE

       Be careful to avoid small subgroup attacks when using this.

SEE ALSO

       DH_new(3), DSA_new(3), ERR_get_error(3)

COPYRIGHT

       Copyright 2000-2018 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 <https://www.openssl.org/source/license.html>.