/a> and <a href="../man3/RAND_seed.html">RAND_seed(3)</a> calls are treated as additional data.</p>

<h2 id="Reseeding-the-primary-DRBG-with-automatic-seeding-disabled">Reseeding the primary DRBG with automatic seeding disabled</h2>

<p>Calling RAND_poll() will always fail.</p>

<p>RAND_add() needs to be called for initial seeding and periodic reseeding. At least 48 bytes (384 bits) of randomness have to be provided, otherwise the (re-)seeding of the DRBG will fail. This corresponds to one and a half times 