From: Alan Olsen <alan@ctrl-alt-del.com>
Date: Tue, 22 Oct 1996 03:46:28 -0700 (PDT)
To: Jüri Kaljundi <jk@stallion.ee>
Subject: Re: Prof Shamir arrested
Message-ID: <3.0b36.32.19961022034515.00e5a308@mail.teleport.com>
MIME-Version: 1.0
Content-Type: text/plain


At 01:00 PM 10/22/96 +0300, Jüri Kaljundi wrote:
> Mon, 21 Oct 1996, Rabid Wombat wrote:
>
>> Or is this the Avi Shamir who broke FEAL-8?
>
>Can you tell more of this? There is an Windows disk encryption utility
>called Teamware Crypto that uses FEAL-8. This program is quite popular in
>Europe, distributed and made by ICL Data.

The attacks on FEAL are pretty lengthy.  _Applied Cryptography_ 2nd edition
by Bruce Schneier has a list of attacks on page 311.  The Shamir attack is
not the one to worry about.  Matsui and Yamagishi have an attack that
breaks it in 2^15 known plaintexts.

If you do not have a copy, I can dig up the references on it.  (It is too
late/early for me to do it clearly at this point...)

Hope that helps.

---
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