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- From: mrr@scss3.cl.msu.edu (Mark Riordan)
- Newsgroups: sci.crypt
- Subject: Re: LUC vs. RSA
- Message-ID: <1i52a2INNds7@msuinfo.cl.msu.edu>
- Date: 2 Jan 93 21:43:30 GMT
- References: <Jan.1.20.35.11.1993.2766@pilot.njin.net>
- Organization: Michigan State University
- Lines: 50
- NNTP-Posting-Host: scss3.cl.msu.edu
- X-Newsreader: TIN [version 1.1 PL6]
-
- Sean Casey (csc@pilot.njin.net) wrote:
- : Could someone please post a few details of LUC instead of bickering
- : over where it's exportable/importable or not.
-
- Here is a repost of my original posting on LUC.
- Note that rpub.cl.msu.edu now has an archive of past sci.crypt
- postings.
-
- Subject: LUC Public-key Encryption
- Newsgroups: sci.crypt
- Summary: New public-key algorithm from New Zealand
- Keywords:
-
- 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
- to encrypt. Q is an integer that is always set to 1 for our purposes.
-
- V[0] = 2
- V[1] = P
- V[n+1] = P*V[n] - Q*V[n-1]
-
- The ciphertext P' = V[e](P,1) mod N.
- The plaintext P = V[d](P',1) mod N.
-
- The public key component is [N, e]. The secret component is d,
- which is computed based on e and the prime factorization of N.
-
- The author, who is also the inventor of the LUC algorithm,
- claims that it is at least as fast as RSA and is more secure
- because it is more resistant to adaptive chosen-message forgery.
-
- Not surprisingly, the author is attempting to patent the system
- and is looking for people to license it to. A provisional patent
- has been obtained. It is not clear whether this patent applies
- to New Zealand or to the United States, or both.
-
- The author's American partner can be contacted as:
-
- Horace R. Moore
- 101 E. Bonita
- Sierra Madre, CA 91024
-
- For more information, see the article.
-
- Mark R.
-