Matthew, there is my personal collection of entropy sources for your reference. That stuff is addictive! - True quantum source: http://whitewoodsecurity.com/pr

Matthew, there is my personal collection of entropy sources for your reference. That stuff is addictive! - True quantum source: http://whitewoodsecurity.com/products/entropy-engine/ http://whitewoodsecurity.com/products/entropy-engine/ - Atmospheric noise: https://www.random.org/randomness/ https://www.random.org/randomness/ - Avalanche Effect Generators http://holdenc.altervista.org/avalanche/ http://holdenc.altervista.org/avalanche/ http://ubld.it/truerng_v3 http://ubld.it/truerng_v3 - Great deck about overall entropy engineering https://www.blackhat.com/docs/us-15/materials/us-15-Potter-Understanding-And-Managing-Entropy-Usage.pdf https://www.blackhat.com/docs/us-15/materials/us-15-Potter-U... And of course "lave wall" we mentioned just takes the cake: https://sploid.gizmodo.com/one-of-the-secrets-guarding-the-secure-internet-is-a-wa-1820188866 https://sploid.gizmodo.com/one-of-the-secrets-guarding-the-s...