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NAME | SYNOPSIS | ARGUMENTS | DESCRIPTION | RETURNS | REPORTING BUGS | COPYRIGHT | SEE ALSO | COLOPHON |
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gnutls_dh_params_generate2(3) gnutls gnutls_dh_params_generate2(3)
gnutls_dh_params_generate2 - API function
#include <gnutls/gnutls.h>
int gnutls_dh_params_generate2(gnutls_dh_params_t dparams,
unsigned int bits);
gnutls_dh_params_t dparams
The parameters
unsigned int bits
is the prime's number of bits
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 side.
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 gnutls_dh_params_import_dsa().
It is no longer recommended for applications to generate
parameters. See the "Parameter generation" section in the manual.
On success, GNUTLS_E_SUCCESS (0) is returned, otherwise a negative
error code is returned.
Report bugs to <bugs@gnutls.org>.
Home page: https://www.gnutls.org
Copyright © 2001-2023 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.
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
https://www.gnutls.org/manual/
This page is part of the GnuTLS (GnuTLS Transport Layer Security
Library) project. Information about the project can be found at
⟨http://www.gnutls.org/⟩. If you have a bug report for this
manual page, send it to bugs@gnutls.org. This page was obtained
from the tarball fetched from
⟨https://www.gnupg.org/ftp/gcrypt/gnutls/⟩ on 2025-08-11. 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 to man-pages@man7.org
gnutls 3.8.10 gnutls_dh_params_generate2(3)
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HTML rendering created 2025-09-06 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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