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From: WTShaw on 29 Mar 2010 23:17 On Mar 28, 6:50 am, Bruce Stephens <bruce+use...(a)cenderis.demon.co.uk> wrote: > gordonb.je...(a)burditt.org (Gordon Burditt) writes: > >>In my view the interface between humans wanting to communicate in > >>secrecy by means of computer encrypted data is threefold, theres the > >>fundamentally important ASCII to begin with, > > > It's important to have a character set, and it's important for it > > to be standardized. Nowadays, I don't think that character set is > > ASCII, though. > > Ironically, his articles seem to be ISO-8859-1. > > [...] And..it would not include ASCII? Realistically, not so many characters as 95 are really necessary. Some could be reassigned to format functions or some compression can be used to include other characters. The compression idea allows lots of characters to be handled in smaller sets. Base 49 for example allows 47 keys, a space, and a shift character to be inserted before any character to be in Upper Case, caps, shift, etc. Ciphertext could contain a shifted character, and the two case sets need not be linked, even the two sets handled as up to 98 characters. It's perhaps difficult to explain all these possibilities, but almost anything can be made to work.
From: Bruce Stephens on 30 Mar 2010 05:04
WTShaw <lurens1(a)gmail.com> writes: [...] > Realistically, not so many characters as 95 are really necessary. Indeed, we know that 2 is sufficient. That's the point. [...] |