The SoC datasheet has this to say about the RNG http://pastehtml.com/view/crkxyo... | Hacker News

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		__alexs on July 18, 2013 \| parent \| context \| favorite \| on: The Raspberry Pi’s Hardware Random Number Generato... The SoC datasheet has this to say about the RNG http://pastehtml.com/view/crkxyohmp.rtxt Which is not particularly helpful. How it works is basically undocumented although I hear the RPi engineers believe it uses some sort of thermal noise as the source for entropy. Broadcom do have HWRNG patents though... https://www.google.co.uk/patents/US6748495 https://www.google.co.uk/patents/US8229108

TerraHertz on July 18, 2013 [–]

Bah. Both those patents are just basically traditional linear feedback shift register systems, plus some fudging to try and make the results better.

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