Integrated crypto

Rogelio Serrano rogelio at smsglobal.net
Fri Apr 9 07:29:55 PDT 2004


On 2004-04-09 22:14:56 +0800 Ian Molton <spyro at f2s.com> wrote:

> On Fri, 09 Apr 2004 20:04:25 +0800
> Rogelio Serrano <rogelio at smsglobal.net> wrote:
> 
>>> why should it? they are both quartz crystals in a > 
>>> non-temperature 
>>> controlled > environment...
>>> 
>> We can extract some entropy out of it then. Unless its used 
>> in a controlled 
>> temperature environment.
> 
> indeed. (besides, temperature controlled evvironment in this 
> case would
> mean encasing the crystal in a 'mini oven', not just a server 
> room with
> air con...)
> 
> -- 
> Spyros lair: http://www.mnementh.co.uk/   ||||   Maintainer: 
> arm26 linux
> 
> Do not meddle in the affairs of Dragons, for you are tasty and 
> good with
> ketchup.
> 

Thats a practical source of entropy then.
I can try writing a short program to do that. Just a loop that 
increments a counter and an alarm. When the alarm fires return 
the number in the loop. Then maybe run the data through gzip 
then feed to urandom. Or whatever prng.




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