The linked PDF: <a href="http:&#x2F;&#x2F;www.chronox.de&#x2F;lrng&#x2F;doc&#x2F;lrng.pdf" rel="nofollow">http:&#x2F;&#x2F;www.chronox.de&#x2F;lrng&#x2F;doc&#x2F;lrng.pdf</a><p>Page 4: &quot;The new approach implements the modeling of a slow noise source within the
LRNG based on the timing of interrupts and allowing other, even fast operating
noise sources to contribute entropy. As discussed above for the legacy &#x2F;dev&#x2F;random,
only the high-resolution time stamps deliver entropy for hardware events
and other information processed by the legacy &#x2F;dev&#x2F;random implementation
hardly have any entropy. This identification is used as a basis that solely the
timing of interrupts is used.&quot;