gnutls_dh_get_prime_bits(3) — Linux manual page


gnutls_dh_get_prime_bits(3)        gnutls        gnutls_dh_get_prime_bits(3)

NAME         top

       gnutls_dh_get_prime_bits - API function

SYNOPSIS         top

       #include <gnutls/gnutls.h>

       int gnutls_dh_get_prime_bits(gnutls_session_t session);

ARGUMENTS         top

       gnutls_session_t session
                   is a gnutls session

DESCRIPTION         top

       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         top

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

REPORTING BUGS         top

       Report bugs to <>.
       Home page:

COPYRIGHT         top

       Copyright © 2001-2019 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         top

       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 

COLOPHON         top

       This page is part of the GnuTLS (GnuTLS Transport Layer Security
       Library) project.  Information about the project can be found at 
       ⟨⟩.  If you have a bug report for this manual
       page, send it to  This page was obtained from the
       tarball gnutls-3.6.9.tar.xz fetched from
       ⟨⟩ on 2020-09-18.  If you discover
       any rendering problems in this HTML version of the page, or you
       believe there is a better or more up-to-date source for the page, or
       you have corrections or improvements to the information in this
       COLOPHON (which is not part of the original manual page), send a mail

gnutls                              3.6.9        gnutls_dh_get_prime_bits(3)