<div dir="ltr"><div class="gmail_default" style="font-family:verdana,sans-serif;color:#000000">There are 3 functions you need:</div><div class="gmail_default" style="font-family:verdana,sans-serif;color:#000000"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif;color:#000000">
EntropyRegisterSource, EntropyProvideData and EntropyUnregisterSource

</div><div class="gmail_default" style="font-family:verdana,sans-serif;color:#000000"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif;color:#000000"><a href="https://docs.microsoft.com/en-us/windows-hardware/drivers/ddi/systemrng/nf-systemrng-entropyregistersource">https://docs.microsoft.com/en-us/windows-hardware/drivers/ddi/systemrng/nf-systemrng-entropyregistersource</a></div><div class="gmail_default" style="font-family:verdana,sans-serif;color:#000000"><a href="https://docs.microsoft.com/en-us/windows-hardware/drivers/ddi/systemrng/nf-systemrng-entropyprovidedata">https://docs.microsoft.com/en-us/windows-hardware/drivers/ddi/systemrng/nf-systemrng-entropyprovidedata</a></div><div class="gmail_default" style="font-family:verdana,sans-serif;color:#000000"><a href="https://docs.microsoft.com/en-us/windows-hardware/drivers/ddi/systemrng/nf-systemrng-entropyunregistersource">https://docs.microsoft.com/en-us/windows-hardware/drivers/ddi/systemrng/nf-systemrng-entropyunregistersource</a></div><div class="gmail_default" style="font-family:verdana,sans-serif;color:#000000"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif;color:#000000">As you see, the parameters aren't really documented apart from the argument type.<br></div></div>