Reverse engineering CRC?

[Aahz]

In article <4B9E0C1F.9020003 at canterbury.ac.nz>,
Gregory Ewing  <greg.ewing at canterbury.ac.nz> wrote:
>
>It turned out to be a very standard CRC algorithm, complicated
>by the presence of a few extra bytes of data being checked that
>didn't appear explicitly in the file anywhere.
>
>In the process I developed some very general techniques for
>solving this kind of problem, which I've written about here
>if anyone's interested:
>
>http://www.cosc.canterbury.ac.nz/greg.ewing/essays/CRC-Reverse-Engineering.html

Excellent essay!
-- 
Aahz (aahz at pythoncraft.com)           <*>         http://www.pythoncraft.com/

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