#39;backend&#39;, connecting the former with the operating systems&#39;s entropy sources and providing access to deterministic random bit generators (DRBG) and their configuration parameters. A DRBG is a certain type of cryptographically-secure pseudo-random number generator (CSPRNG), which is described in [NIST SP 800-90A Rev. 1].</p>

<h2 id="Disclaimer">Disclaimer</h2>

<p>Unless you have very specific requirements for your random generator, it is in general not necessary to utilize the EVP_RAND API dire