Article View: sci.crypt
Article #2046Re: LUC Public-key Encryption
From: Robert D. Silverman
Date: Fri, 11 Dec 1992 17:16
Date: Fri, 11 Dec 1992 17:16
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In article <1992Dec11.134309.29150@msuinfo.cl.msu.edu> mrr@scss3.cl.msu.edu (Mark Riordan) writes: >The January 1993 issue of Dr. Dobb's Journal has an article by >Peter Smith on a new public-key encryption algorithm called LUC. >This algorithm, based on "Lucas sequences", resembles RSA in >that it involves modular arithmetic based on N, the product of two >large primes, and a second number, e. > >A Lucas sequence, V[i](P,Q), is defined as follows. P is the message This is nothing new. A 'Lucas Sequence' is nothing more than a disguised way of doing exponentiation in the twisted sub-group of a finite field with p^2 elements. This is the sub-group that has order p+1, as opposed to p-1, which is the group that RSA is based upon. This has been well known for a long time among number theorists. >The author, who is also the inventor of the LUC algorithm, While I won't cry 'plagiarism', since the author may be unaware of prior developments, for him to claim to be the 'inventor' is bogus at best. It is NOT new. >Not surprisingly, the author is attempting to patent the system >and is looking for people to license it to. A provisional patent He should not be able to patent this, since what he has done was all known before. -- Bob Silverman These are my opinions and not MITRE's. Mitre Corporation, Bedford, MA 01730 "You can lead a horse's ass to knowledge, but you can't make him think"
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Newsgroups: sci.crypt Path: arc1-ca.pugleaf.net!sparky!uunet!cs.utexas.edu!sdd.hp.com!spool.mu.edu!agate!linus!linus.mitre.org!gauss!bs From: bs@gauss.mitre.org (Robert D. Silverman) Subject: Re: LUC Public-key Encryption Message-ID: <1992Dec11.171631.26834@linus.mitre.org> Sender: news@linus.mitre.org (News Service) Nntp-Posting-Host: gauss.mitre.org Organization: Research Computer Facility, MITRE Corporation, Bedford, MA References: <1992Dec11.134309.29150@msuinfo.cl.msu.edu> Date: Fri, 11 Dec 1992 17:16:31 GMT Lines: 32