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 © 2001-2022 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/