alternative random device

Janusz A . Urbanowicz alex at
Sun Feb 9 19:57:01 CET 2003

Jacob Perkins napisał[a]/wrote/schrieb:
> I'm not sure how common this is, but I am using gentoo, which provides a
> /dev/urandom device, which seems to have much better performance than
> /dev/random. I actually had to restart earlier because /dev/random
> stopped working, and gnupg couldn't generate any keys, though
> /dev/urandom worked fine.  Is it possible to configure gnupg to use
> /dev/urandom instead of /dev/random?  How? --enable-static-rnd doesn't
> seem to allow specifying the device.  If it current isn't possible, I
> think a configure time option should be added, maybe --random-device=.
> This is all with gnupg-1.2.1

This is a feature. 

/dev/random is assumed to be a source of cryptographically safe random bits
source, while /dev/urandom is not. No one should use /dev/urandom for crypto.


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