lue returned is an internal pointer which <b>MUST NOT</b> be freed up after the call.</p>

<p>X509_get0_serialNumber() is the same as X509_get_serialNumber() except it accepts a const parameter and returns a const result.</p>

<p>X509_set_serialNumber() sets the serial number of certificate <b>x</b> to <b>serial</b>. A copy of the serial number is used internally so <b>serial</b> should be freed up after use.</p>

<p>X509_ACERT_get0_serialNumber() performs the same operation as X509_get_serialNumber() for a