[Cryptography] Proper Entropy Source

[Ryan Carboni]

>If A and B are independent then H(B|A) = H(B) and H(AB) = H(A) + H(B)

Processors/circuit operate slightly differently under different types
of load. Measuring ram latency vs MMU latency is slightly different.
Measuring the latency of a single load is different than the latency
of multiple loads from ram.