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- Newsgroups: sci.crypt
- Path: sparky!uunet!wupost!zaphod.mps.ohio-state.edu!malgudi.oar.net!chemabs!jac54
- From: jac54@cas.org ()
- Subject: Another aspect of DNA and cryptology
- Message-ID: <1992Jul22.102455.28674@cas.org>
- Sender: usenet@cas.org
- Organization: Chemical Abstracts Service, Columbus, Ohio
- Date: Wed, 22 Jul 1992 10:24:55 GMT
- Lines: 35
-
- In the most recent issue of Nature (9 July '92) John Maddox
- discusses a paper from Physical Review Letters (vol. 68, 3805)
- in which a mysterious property of the information content of
- DNA is studied: long-range correlations in nucleotide sequences.
- To put it another way, pieces of information separated by a lot of
- other (related) information affect one another.
-
- The correlations were found using a random walk model in four
- dimensions and they have a '1/f noise' character.
-
- This reminded this amateur cryptologist of looking for repeated
- n-graphs to identify the period in a polyalphabetic cipher. So the
- following questions come to mind:
-
- Could such an approach be used to identify large numbers used as
- superencipherments?
-
- Any particular reason why not?
-
- If you have technical questions, please check the original
- documents, the analysis is certainly is not my field.
-
- Alec Chambers.
-
- If these are my organization's opinions, I'd be extremely surprised.
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