[67716] in Cypherpunks
Re: BBS generator
daemon@ATHENA.MIT.EDU (Perry E. Metzger)
Wed Oct 9 18:52:56 1996
To: paul@fatmans.demon.co.uk
Cc: cypherpunks@toad.com
In-Reply-To: Your message of "Tue, 08 Oct 1996 17:25:01 -0000."
<844888870.2598.0@fatmans.demon.co.uk>
Reply-To: perry@piermont.com
Date: Wed, 09 Oct 1996 18:20:12 -0400
From: "Perry E. Metzger" <perry@piermont.com>
paul@fatmans.demon.co.uk writes:
> Does anyone here know the approximate ammount of output from a BBS
> PRNG needed to predict with some certainty the next bit or bits? - is
> the generator totally secure, ie. do you need to factor to predict or
> is there an attack using the output?
The whole point of a BBS generator is that you have to factor in order
to predict -- I'm sure that Schneier has a discussion on this.
Perry