Re: Prof Shamir arrested
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. --- | "Remember: You can't have BSDM without BSD." - alan@ctrl-alt-del.com | |"The moral PGP Diffie taught Zimmermann unites all| Disclaimer: | | mankind free in one-key-steganography-privacy!" | Ignore the man | |`finger -l alano@teleport.com` for PGP 2.6.2 key | behind the keyboard.| | http://www.teleport.com/~alano/ | alano@teleport.com |
Tue, 22 Oct 1996, Alan Olsen wrote:
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.
I have the book but unfortunately I gave it to a friend for some time to read it :) Anyway I personally use F-Secure Desktop which uses Blowfish and I am happy with that. Just that I thought the product Teamware Crypto is not as secure as the marketing materials say. Jüri Kaljundi AS Stallion jk@stallion.ee WWW ja andmeturva teenused http://www.stallion.ee/
participants (2)
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Alan Olsen -
Jüri Kaljundi