---
name: "gnutls_kx_get"
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_kx_get"
---

# gnutls\_kx\_get(3)

API function

## NAME

gnutls\_kx\_get - API function

## SYNOPSIS

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

**gnutls\_kx\_algorithm\_t gnutls\_kx\_get(gnutls\_session\_t** *session***);**

## ARGUMENTS

- gnutls\_session\_t session

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

## DESCRIPTION

Get the currently used key exchange algorithm.

This function will return **GNUTLS\_KX\_ECDHE\_RSA**, or **GNUTLS\_KX\_DHE\_RSA** under TLS 1.3, to indicate an elliptic curve DH key exchange or a finite field one. The precise group used is available by calling **gnutls\_group\_get()** instead.

## RETURNS

the key exchange algorithm used in the last handshake, a **gnutls\_kx\_algorithm\_t** value.

## 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/