Checksum

  • Thread starter Thread starter Evil Peer
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Hey guys, how do you create those checksum functions ? Do you trace through the game-code ?
 
no, all checksum functions work pretty much the same.  They are all pretty much just binary division.  Its what you do with the results that can really mess things up.  That, or choosing a non-standard polynomial.

Do a search on google for checksum and tutorial, or something.  eventually, you'll come across a page that explains how it all works.

---Evil Peer
 
I wrote a program that checks each possible window (of contiguous data) for a matching checksum value.  It completes a few thousand windows per second.  Of course, since each checksum value has several million windows (depending on the data size), it takes quite some time to check even one value.  Its checking 13 suspected values at home on my Athlon 1400 right now, I started it around 23:00 EST.  I'm hoping to have some sort of definitive answer when I get home tonight (on LoM).

---Evil Peer
 
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