uccessfully and ensure that <b>*sess</b> is NULL.</p>

<p>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>NUL</b>-terminated PSK identity hint <b>hint</b> for SSL context object <b>ctx</b>. SSL_use_psk_identity_hint() sets the given <b>NUL</b>-terminated PSK identity hint <b>hint</b> for the SSL connection object <b>ssl</b>. If <b>hint</b> is <b>NULL</b> the current hint from 