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From Ben Laurie <...@algroup.co.uk>
Subject Re: /dev/urandom vs /dev/random [was Re: 2.0.36 hangs on linux on startup]
Date Mon, 27 May 2002 14:25:12 GMT
Cliff Woolley wrote:
> On Sun, 26 May 2002, Ben Laurie wrote:
>>>What about a --with-devrandom=<path> option for people who do want to go
>>>the /dev/urandom route?
> I'm starting to prefer this option I think.
>>Surely its configurable anyway? Changing the default strikes me as
>>something that will bite you if you aren't careful!
> Nope.  Currently /dev/random is strictly preferred over /dev/urandom which
> is strictly preferred over EGD over truerand.  I'd think if the user asks
> for EGD, we should ignore /dev/random even if it exists.  And if the user
> asks for /dev/urandom or /some/other/device, we should prefer that over
> /dev/random even if it exists.  I'm not sure how truerand should fit in,
> since it's currently just tested for as a last resort and not specifically
> requested by the user.

Hmmm. Well, IMO it should be configurable at runtime, especially since 
some other OSes have yet more sources of entropy (/dev/arandom for example).



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