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Re: Digest Authentication

From: Simon Spero <ses@tipper.oit.unc.edu>
Date: Sun, 31 Dec 1995 14:00:31 -0800 (PST)
To: Dan Stromberg - OAC-DCS <strombrg@hydra.acs.UCI.EDU>
Cc: "Allan M. Schiffman" <ams@terisa.com>, http-wg%cuckoo.hpl.hp.com@hplb.hpl.hp.com, www-security@ns2.rutgers.edu
Message-Id: <Pine.SOL.3.91.951231135457.902A-100000@chivalry>

Just to reiterate: Keyed-MD5 and in general all technologies that are 
used soley for authentication and not privacy, are not treated as 
munitions under 121.1.XIII.b. I'm not a lawyer, but this is what I've 
been told by lawyers.

 There was a thread on this subject on cypherpunks about 6-8 weeks ago - 
take a look at the archives for more citations on this.


(defun modexpt (x y n)  "computes (x^y) mod n"
  (cond ((= y 0) 1) 	((= y 1) (mod x n))
	((evenp y) (mod (expt (modexpt x (/ y 2) n) 2) n))
	(t (mod (* x (modexpt x (1- y) n)) n))))
Received on Sunday, 31 December 1995 14:00:53 UTC

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