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- Path: sparky!uunet!zaphod.mps.ohio-state.edu!usc!news.service.uci.edu!ucivax!ofa123!Erik.Lindano
- From: Erik.Lindano@ofa123.fidonet.org
- Newsgroups: sci.crypt
- Subject: New Encryption - a Challenge!
- X-Sender: newtout 0.02 Nov 17 1992
- Message-ID: <n0ee4t@ofa123.fidonet.org>
- Date: 18 Nov 92 21:29:58
- Lines: 60
-
-
- Wed 11-18-1992
-
- This is a public answer to various e-mail messages addressed to me
- at ofa123.fidonet.org.
- Erik.Lindano@ofa123.fidonet.org
- =================================================================
-
- To those who kindly replied in e-mail regarding the new encryption
- challenge, thanks. Please bear in mind that the e-mail system seems
- little unorthodox here. I am not sure that I can reply reliably.
- I will be providing the materials shortly. All test materials will
- be publicly available.
-
- To those who sent messages telling me to shut up: nothing doing.
-
- I am now authorized to say that NuCrypt relies on the use of
- embedded, 2048-bit shifting keys. In our mind, the encryption seems
- very strong. To those who wondered whether the cyphertext was
- descipherable (!), yes, of course it is :-) NuCrypt encrypts and
- decrypts reliably and unambiguously. It is also very fast in both
- directions and very compact. It could easily fit in cramped
- firmware, for example and could be readily applied to real-time
- encryption in high-speed data transmission links or storage-
- retrieval devices.
-
- To the fellow who said I should just make a posting of the test
- materials, and let those who wanted take a potshot at them, why
- not? I'd be glad to do that. We just wanted to get some input on
- exactly what format people wanted to have - wasn't trying to make
- anyone beg for them. That's the main reason I haven't posted any
- test materials yet. Also, posting in article format might reasonably
- limit the size of the test material, and I wasn't sure whether that
- would be acceptable. Most correspondents have already asked for
- test files larger than I could easily post from here.
-
- To the gentleman who proposed a special testing method involving
- slowly-changing, large text files, OK, you're on. Don't think that
- I should really circulate many such size files over USENET, but we
- might be able to make an ftp upload somewhere and leave the files
- there for anyone who wants them. I'll need some time to prepare the
- materials you described. We do need to make them public, since the
- challenge is open to all.
-
- To the same gentleman, who was wondering whether the various test
- files would always be prepared using exactly the same algorithm,
- without additional user input, yes, they would be. However, out of
- fairness I must add that, because NuCrypt uses embedded keys which
- shift continuously, it might be fair to say that all test files
- (and even all portions of each test file!) will be encrypted in a
- "changeable" fashion. They will be encrypted by the same *program*,
- but the program is designed to shift its embedded key during use
- so, in a way, it modifies itself in use. If you call that the
- "same algorithm", that's fine with us.
-
- Matter of definition, really, but we want to be scrupulously
- fair, although we cannot be as candid as some want.
-
-
- --- Maximus 2.00
-