Messages in this thread | | | From | Arnd Bergmann <> | Subject | Re: [RFC][PATCH] Pseudo-random number generator | Date | Thu, 7 Dec 2006 19:43:13 +0100 |
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On Thursday 07 December 2006 16:19, Jan Glauber wrote: > Hm, why is /dev/urandom implemented in the kernel? > > It could be done completely in user-space (like libica already does) > but I think having a device node where you can read from is the simplest > implementation. Also, if we can solve the security flaw we could use it > as replacement for /dev/urandom.
urandom is more useful, because can't be implemented in user space at all. /dev/urandom will use the real randomness from the kernel as a seed without depleting the entropy pool. How does your /dev/prandom device compare to /dev/urandom performance-wise? If it can be made to use the same input data and it turns out to be significantly faster, I can see some use for it.
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