gnutls_dh_params_generate2(3) — Linux manual page


gnutls_dh_params_generate2(3)      gnutls      gnutls_dh_params_generate2(3)

NAME         top

       gnutls_dh_params_generate2 - API function

SYNOPSIS         top

       #include <gnutls/gnutls.h>

       int gnutls_dh_params_generate2(gnutls_dh_params_t dparams, unsigned
       int bits);

ARGUMENTS         top

       gnutls_dh_params_t dparams
                   The parameters

       unsigned int bits
                   is the prime's number of bits

DESCRIPTION         top

       This function will generate a new pair of prime and generator for use
       in the Diffie-Hellman key exchange. This may take long time.

       It is recommended not to set the number of bits directly, but use
       gnutls_sec_param_to_pk_bits() instead.  Also note that the DH
       parameters are only useful to servers.  Since clients use the
       parameters sent by the server, it's of no use to call this in client

       The parameters generated are of the DSA form. It also is possible to
       generate provable parameters (following the Shawe-Taylor algorithm),
       using gnutls_x509_privkey_generate2() with DSA option and the
       GNUTLS_PRIVKEY_FLAG_PROVABLE flag set. These can the be imported with

       It is no longer recommended for applications to generate parameters.
       See the "Parameter generation" section in the manual.

RETURNS         top

       On success, GNUTLS_E_SUCCESS (0) is returned, otherwise a negative
       error code is returned.

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_params_generate2(3)