rn NULL. When there is no key logging callback, or if SSL_CTX_set_keylog_callback is called with NULL as the value of cb, no logging of key material will be done.</p>

<p>The key logging callback is called with two items: the <b>ssl</b> object associated with the connection, and <b>line</b>, a string containing the key material in the format used by NSS for its <b>SSLKEYLOGFILE</b> debugging output. To recreate that file, the key logging callback should log <b>line</b>, followed by a newline. <b>line</b> wi