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Re: Newbie Crypto question: MOD?
At 8:39 PM 9/16/95, Childers James wrote:
>Ok folks, I recently received "Applied Cryptography" as a gift, and just
>have one question: How does the MOD function work in crypto functions? It
>seems to work differently than what I've seen before, i.e.: C/C++ MOD. I
>also didn't see anything in TCM's FAQ...
>
>If this is considered noise, I apologize in advance.
I didn't put anything in my FAQ about "mod" because my FAQ was not a crypto
FAQ per se, of which there are at least two. (Cf. sci.crypt for regular
pointers.)
And I doubt that either of these FAQs discusses the mod function, though I
haven't checked.
In any case, Schneier devotes several pages to mod, starting with "You all
learned modular arithmetic in school; it was called "clock arithmetic"" (p.
198).
After defining it, Schneier goes on to discuss its use in modern cryptography.
If this isn't enough of an explanation, I don't know what more to say.
--Tim May
---------:---------:---------:---------:---------:---------:---------:----
Timothy C. May | Crypto Anarchy: encryption, digital money,
[email protected] 408-728-0152 | anonymous networks, digital pseudonyms, zero
Corralitos, CA | knowledge, reputations, information markets,
Higher Power: 2^756839 | black markets, collapse of governments.
"National borders are just speed bumps on the information superhighway."