US Patent 10140095 Collecting entropy from diverse sources

Methods and systems are disclosed for generating more random data or ensuring more random data than provided by single sources. Entropy is gathered among multiple random or pseudo-random sources at different frequencies. The entropy is pushed, pulled, or otherwise presented to a pseudo-random number generator when there is enough entropy. The determination of enough entropy can be through a modified Hamming distance. The frequencies of polling for entropy from the entropy sources can be jittered by a random amount.