[BitTorrent] bt2 protocol features

Olaf van der Spek OvdSpek at LIACS.NL
Sun Jun 6 08:38:27 EDT 2004


> (Consider the birthdays problem.  The chance that any given person
> shares *your birthday* is very low.  One in 365.  But in a room full of
> people, the chance that there are two of them who share a birthday is
> very high.  You only need 30 people before the chance is 50/50.  Try it!)

I know.
So all you need is 2^80 b data (SHA1 size / 2) on one system and a
collission is likely.

Anyway, I don't like the idea either and the current way of identifying
pieces is fine IMO.



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