From: =?ISO-8859-1?Q?J=FCri_Kaljundi?= <jk@stallion.ee>
Date: Tue, 16 Jul 1996 09:06:18 +0800
To: cypherpunks@toad.com
Subject: random numbers reverse-engineering
Message-ID: <Pine.GSO.3.93.960715201623.25388F-100000@nebula.online.ee>
MIME-Version: 1.0
Content-Type: text/plain



Is there somewhere where I could find more information on finding out RNG
algorithms or reverse-engineering RNG's, once you have some quantity of
random numbers generated by some RNG?

For example a local bank is giving each customer a list with 600 one-time
passwords (6-digit decimal numbers), and I believe they use the account
number as (one of the) seeds for the RNG. Is there some program that I
could use, together with the numbers and possible seed, to try to break
the RNG?

Jüri Kaljundi
AS Stallion
jk@stallion.ee