If you guys don't mind soldering a lot, there's a hardware RNG here: http://hackaday.com/2014/10/31/dual-mode-avalanche-and-rf-random-number-generator/
It says it can generate ~350kbits per second of entropy... I don't know if it's enough for you. Mauro http://mauro.limeiratem.com - registered Linux User: 294521 Scripture is both history, and a love letter from God. 2014-11-12 14:27 GMT-02:00 Stewart Russell <[email protected]>: > > On Nov 12, 2014 10:52 AM, "Christopher Browne" <[email protected]> wrote: > > > > http://www.entropykey.co.uk/tech/ > > Unfortunately, these are no longer available. If you check their shop, > they say that the wait time is effectively indefinite. > > It looks well designed, but it all depends how paranoid you need to be. > Certain ARM Cortex microcontrollers have thermal hardware RNGs built in. > They can pump out a stream of noise at a huge rate. > > The Raspberry Pi's SoC has one too. It's not super-fast and closed, so you > decide if it works for you. Most other artisanal solutions (Geiger counter > timing, clock skew on microcontrollers, detuned radios, avalanche noise, > intentionally mis-wired comparators) don't produce the volume of entropy > you need. They're also open to tampering, and most folks don't have the > knowledge to know what to look for in designing such a thing. I certainly > know I don't ... > > I haven't checked if you still have to build a custom kernel to get RdRand > support on x86. Given past messes over ssh entropy holes, the lack of > support for RdRand because it might be tainted by the NSA was a pot/kettle > situation. > > Cheers > Stewart > > > > --- > GTALUG Talk Mailing List - [email protected] > http://gtalug.org/mailman/listinfo/talk > >
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