gnutls_session_key_update(3)

NAME
gnutls_session_key_update - API function

SYNOPSIS
#include <gnutls/gnutls.h>

int gnutls_session_key_update(gnutls_session_t session, unsigned flags);

ARGUMENTS

gnutls_session_t session
    is a gnutls_session_t type.

unsigned flags
    zero of GNUTLS_KU_PEER

DESCRIPTION
This function will update/refresh the session keys when the TLS protocol is 1.3 or better. The peer is notified of the update by sending a message, so this function should be treated similarly to gnutls_record_send() --i.e., it may return GNUTLS_E_AGAIN or GNUTLS_E_INTERRUPTED.

When this flag GNUTLS_KU_PEER is specified, this function in addition to updating the local keys, will ask the peer to refresh its keys too.

If the negotiated version is not TLS 1.3 or better this function will return GNUTLS_E_INVALID_REQUEST.

RETURNS
GNUTLS_E_SUCCESS on success, otherwise a negative error code.

SINCE
3.6.3

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

COPYRIGHT
Copyright © 2001- 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/