oracular (3) gnutls_session_get_id2.3.gz

Provided by: gnutls-doc_3.8.6-2ubuntu1.1_all bug

NAME
       gnutls_session_get_id2 - API function


SYNOPSIS
       #include <gnutls/gnutls.h>

       int gnutls_session_get_id2(gnutls_session_t session, gnutls_datum_t * session_id);


ARGUMENTS
       gnutls_session_t session
                   is a gnutls_session_t type.

       gnutls_datum_t * session_id
                   will point to the session ID.


DESCRIPTION
       Returns  the  TLS  session identifier. The session ID is selected by the server, and in older versions of
       TLS was a unique identifier shared between client and server which was persistent across resumption.   In
       the  latest  version  of  TLS (1.3) or TLS 1.2 with session tickets, the notion of session identifiers is
       undefined and cannot be relied for uniquely identifying sessions across client and server.

       In client side this function returns the identifier returned by the server, and cannot be assumed to have
       any  relation  to  session resumption.  In server side this function is guaranteed to return a persistent
       identifier of the session since GnuTLS 3.6.4, which may not necessarily  map  into  the  TLS  session  ID
       value.  Prior to that version the value could only be considered a persistent identifier, under TLS1.2 or
       earlier and when no session tickets were in use.

       The session identifier value returned is  always  less  than  GNUTLS_MAX_SESSION_ID_SIZE  and  should  be
       treated as constant.


RETURNS
       On success, GNUTLS_E_SUCCESS (0) is returned, otherwise an error code is returned.


SINCE
       3.1.4


REPORTING BUGS
       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.


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/