From: "Z.B." <zachb@netcom.com>
Date: Tue, 28 Jan 1997 22:40:46 -0800 (PST)
To: stewarts@ix.netcom.com
Subject: Re: Last nail for US crypto export policy?
Message-ID: <199701290640.WAA21235@toad.com>
MIME-Version: 1.0
Content-Type: text/plain


On Tue, 28 Jan 1997 stewarts@ix.netcom.com wrote:
[snip]
> >EXPORTABLE CRYPTOGRAPHY TOTALLY INSECURE: CHALLENGE CIPHER BROKEN IMMEDIATELY
> >
> >January 28, 1997 - Ian Goldberg, a UC Berkeley graduate student, 
> >announced today that he had successfully cracked RSA Data Security 
> >Inc.'s 40-bit challenge cipher in just under 3.5 hours.
> ....
> >Goldberg used UC Berkeley's Network of Workstations (known as the NOW) 
> >to harness the computational resources of about 250 idle machines.  
> >This allowed him to test 100 billion possible "keys" per hour -- 
> 
Good grief...I just remembered that this challenge started today when I 
read this letter.  A question - how does DES differ from the RC5 cyphers 
that are also up for breaking?  Where can I find some software to use on 
these?  



Zach Babayco 

zachb@netcom.com <-------finger for PGP public key

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