NAME

       gnutls_dh_get_prime_bits - API function

SYNOPSIS

       #include <gnutls/gnutls.h>

       int gnutls_dh_get_prime_bits(gnutls_session_t session);

ARGUMENTS

       gnutls_session_t session
                   is a gnutls session

DESCRIPTION

       This  function  will  return  the  bits  of  the prime used in the last Diffie-Hellman key
       exchange with the peer.  Should be used for both anonymous and  ephemeral  Diffie-Hellman.
       Note  that  some  ciphers,  like  RSA and DSA without DHE, do not use a Diffie-Hellman key
       exchange, and then this function will return 0.

RETURNS

       The Diffie-Hellman bit strength is returned, or 0 if no Diffie-Hellman  key  exchange  was
       done, or a negative error code on failure.

REPORTING BUGS

       Report bugs to <bugs@gnutls.org>.
       Home page: http://www.gnutls.org

COPYRIGHT

       Copyright © 2001-2021 Free Software Foundation, Inc., and others.
       Copying  and distribution of this file, with or without modification, are permitted in any
       medium without royalty provided the copyright notice and this notice are preserved.

SEE ALSO

       The  full  documentation  for  gnutls  is  maintained  as  a  Texinfo  manual.    If   the
       /usr/share/doc/gnutls/ directory does not contain the HTML form visit

       http://www.gnutls.org/manual/