---
name: "gnutls_handshake_set_private_extensions"
section: "3"
platform: "linux"
package: "gnutls"
version: "3.8.13-3"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/gnutls_handshake_set_private_extensions"
---

# gnutls\_handshake\_set\_private\_extensions(3)

API function

## NAME

gnutls\_handshake\_set\_private\_extensions - API function

## SYNOPSIS

**#include \<gnutls/gnutls.h\>**

**void gnutls\_handshake\_set\_private\_extensions(gnutls\_session\_t** *session***, int** *allow***);**

## ARGUMENTS

- gnutls\_session\_t session

  is a **gnutls\_session\_t** type.

- int allow

  is an integer (0 or 1)

## DESCRIPTION

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 advertised nor used.

Currently GnuTLS does not include such cipher-suites or compression algorithms.

Enabling the private ciphersuites when talking to other than gnutls servers and clients may cause interoperability problems.

## REPORTING BUGS

Report bugs to \<bugs@gnutls.org\>.\
 Home page: https://www.gnutls.org

## COPYRIGHT

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.

## 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

- https://www.gnutls.org/manual/