Re: [PATCH] (0/4) Entropy accounting fixes

From: David Wagner (
Date: Wed Aug 21 2002 - 22:25:26 EST

Linus Torvalds wrote:
>On the other hand, if you are _too_ anal you won't consider _anything_
>"truly random", and /dev/random becomes practically useless on things that
>don't have special randomness hardware.

Well, /dev/random never was the right interface for most applications, and
this is arguably the real source of the problem. For most applications,
what you want is something like /dev/urandom (possibly a version that
doesn't deplete all the true randomness available for /dev/random). Very
few applications need true randomness; for most, cryptographic-quality
pseudorandomness should suffice.

1 bit of true randomness a minute should be more than sufficient for most
real applications. (That means you can catastrophically reseed with 128
bits once every two hours, which sounds good to me.)
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

This archive was generated by hypermail 2b29 : Fri Aug 23 2002 - 22:00:24 EST