title: Does MySQL have a cryptographically secure random number generator?
body: <p>So far I have been using PHP to create cryptographically secure random values, with <a href="http://php.net/manual/en/function.openssl-random-pseudo-bytes.php" rel="noreferrer">openssl_random_pseudo_bytes</a>. I would like to generate a cryptographically secure token within a stored function, is RAND() what I am looking for, or is it not cryptographically secure?</p>