[p2p-hackers] network coding put to practical p2p content dist. use

coderman coderman at gmail.com
Mon Jun 20 19:24:13 UTC 2005


On 6/16/05, Gregory P. Smith <greg at electricrain.com> wrote:
> This paper on using network coding for p2p content distribution swarm
> speedups is interesting.
> 
>  http://www.research.microsoft.com/~pablo/papers/nc_contentdist.pdf

Bram has responded to this paper via:
http://www.livejournal.com/users/bramcohen/20140.html

it looks like he has not considered it in detail as of yet:

"some people will point out that 'error correcting codes' isn't the
right term for the latest and greatest of this sort of technology, to
which I say 'whatever'"

also:

"The really big unfixable problem with error correction is that peers
can't verify data with a secure hash before they pass it on to other
peers. As a result, it's quite straightforward for a malicious peer to
poison an entire swarm just by uploading a little bit of data. The
Avalanche paper conveniently doesn't mention that problem."

as mentioned this is one of the previously discussed but not disclosed
in detail techniques that makes network coding trustworthy in this
context.  you can be sure this is patented in Avalanche.  (has anyone
seen a relevant USPTO app for it yet?)



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