Identity hints are not relevant for TLSv1.3. A server application wishing to use
PSK ciphersuites for TLSv1.2 and below may call SSL_CTX_use_psk_identity_hint()
-to set the given B<NULL>-terminated PSK identity hint B<hint> for SSL context
-object B<ctx>. SSL_use_psk_identity_hint() sets the given B<NULL>-terminated PSK
+to set the given B<NUL>-terminated PSK identity hint B<hint> for SSL context
+object B<ctx>. SSL_use_psk_identity_hint() sets the given B<NUL>-terminated PSK
identity hint B<hint> for the SSL connection object B<ssl>. If B<hint> is
B<NULL> the current hint from B<ctx> or B<ssl> is deleted.
received PSK identity and to fetch the pre-shared key used during the
connection setup phase. The callback is set using the functions
SSL_CTX_set_psk_server_callback() or SSL_set_psk_server_callback(). The callback
-function is given the connection in parameter B<ssl>, B<NULL>-terminated PSK
+function is given the connection in parameter B<ssl>, B<NUL>-terminated PSK
identity sent by the client in parameter B<identity>, and a buffer B<psk> of
length B<max_psk_len> bytes where the pre-shared key is to be stored.
using either SSL_CTX_set_psk_use_session_callback() or
SSL_set_psk_use_session_callback() as appropriate.
-The callback function is given a reference to the SSL connection in B<ssl> and
+The callback function is given a pointer to the SSL connection in B<ssl> and
an identity in B<identity> of length B<identity_len>. The callback function
should identify an SSL_SESSION object that provides the PSK details and store it
in B<*sess>. The SSL_SESSION object should, as a minimum, set the master key,
=head1 RETURN VALUES
-SSL_CTX_use_psk_identity_hint() and SSL_use_psk_identity_hint() return
+B<SSL_CTX_use_psk_identity_hint()> and B<SSL_use_psk_identity_hint()> return
1 on success, 0 otherwise.
Return values from the TLSv1.2 and below server callback are interpreted as
=back
-The SSL_psk_find_session_cb_func callback should return 1 on success or 0 on
+The B<SSL_psk_find_session_cb_func> callback should return 1 on success or 0 on
failure. In the event of failure the connection setup fails.
+=head1 SEE ALSO
+
+L<SSL_CTX_set_psk_use_session_callback(3)>,
+L<SSL_set_psk_use_session_callback(3)>
+
+=head1 HISTORY
+
+SSL_CTX_set_psk_find_session_callback() and SSL_set_psk_find_session_callback()
+were added in OpenSSL 1.1.1.
+
=head1 COPYRIGHT
Copyright 2006-2017 The OpenSSL Project Authors. All Rights Reserved.