Proposed Posting to Evangelist (Mac mailing list)

David Weingart (
Wed, 7 May 1997 15:23:12 -0400 (EDT)

What follows is the proposed text of a posting to the Evangelist, the
Macintosh mailing list (there are at least 40,000 people who get this list
on a daily basis). I noticed that the RC5 cracking effort had gotten a
mention in the list, but I hadn't seen anything regarding DESchall. If
there already has been a post to evangelist, I apologize. I did search the
evagelist website for DESchall, and it came up empty.

If you want more information about the Evagelist, this is the URL:


I've read with interest the recent Evangelist postings regarding the RSA
Secret Key Challenge Effort.

It should be noted, however, that cracking RC5 encryption is not the only
RSA challenge. There is also another effort afoot to crack DES encryption.
These are separate endeavors, and should not be confused. RSA is running
several contests to prove that the government's restriction on cryptography
is dangerous.

The effort is being coordinated by Rocke Verser. They just recently added
Mac clients, PPC and 68K (there is also a client for mklinux). In order to
participate, you need to have a net connection. As with the effort to break
the RC5 algorithm, the client does it's job in the background, while you
work on something else. It just needs your spare CPU cycles.

The person whose computer finds the key will receive $4,000 of the $10,000

You can pick up the client, and a whole lot more information about this
effort, and why it is important, at this URL:


The download link is here:


p.s. There should be a more heavily optimized Mac client soon.

Well, what do you think? Let me know!


David Weingart | |
"The foot can split wood....but it can't split a watermelon"