Raw sensor readings

Jean Delvare khali at linux-fr.org
Tue Apr 12 09:50:05 CEST 2005


Hi John,

> Instead of trying to code everything myself using lm_sensors (which I was
> informed wasn't possible, thank you), I decided to use FreeBSD and the
> code from the previous semester's project. Now I can simply call a method
> brand() and retrieve a supposedly random number based on the sensors. My
> job for this semester is to test it for randomness and perhaps make a
> webpage for it. Chi-squared analysis yields that 5/10 groups of readings
> are random. Not bad for a start.

I don't know if this is of any interest to you, but some computers have
hardware random number generators, and Linux (and I suspect BSD) has
drivers to handle a couple of these. Andrew E. Schulman set up a nice
(although slightly outdated) page about these:
  http://home.comcast.net/~andrex/hardware-RNG/
But it might not be of any help for your specific project. Up to you.

> lm_sensors is quite extensive and easy to use, kudos to that.

Thanks :')

--
Jean Delvare



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