Provided by: gnutls-doc_3.0.11+really2.12.14-5ubuntu3_all
gnutls_handshake_set_private_extensions - API function
#include <gnutls/gnutls.h> void gnutls_handshake_set_private_extensions(gnutls_session_t session, int allow);
gnutls_session_t session is a gnutls_session_t structure. int allow is an integer (0 or 1)
This function will enable or disable the use of private cipher suites (the ones that start with 0xFF). By default or if allow is 0 then these cipher suites will not be advertized nor used. Unless this function is called with the option to allow (1), then no compression algorithms, like LZO. That is because these algorithms are not yet defined in any RFC or even internet draft. Enabling the private ciphersuites when talking to other than gnutls servers and clients may cause interoperability problems.
Report bugs to <firstname.lastname@example.org>. GnuTLS home page: http://www.gnu.org/software/gnutls/ General help using GNU software: http://www.gnu.org/gethelp/
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The full documentation for gnutls is maintained as a Texinfo manual. If the info and gnutls programs are properly installed at your site, the command info gnutls should give you access to the complete manual.