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Collapsing P2P Networks

Andrew writes "I'm a undergraduate at the University of Washington, and after seeing this article on Salon, I dusted off a paper I had written last year. I examined P2P networks under a model usually used in describing animal populations, and found that it may be possible to cause a collapse in the network based on the intrinsic nature of the technology. Just as in animal populations, P2P networks require a sizable "critical mass" of users, and overharvesting can cause a systemic collapse - what if this were done on purpose? Quite ominously, my second recommendation on disruption was carrying damaged or incorrectly named files. You can read theabstract and the actual paper"

4 of 210 comments (clear)

  1. Re:Start of a bad trend by oakbox · · Score: 5, Interesting

    Isn't that the point though? You can't go to court suing Sony because they created a lot of damaged versions of their songs. How does this sound?

    "I was trying to download an illegal copy of their copyrighted music and it was damaged!"

    I think this is one case where they could simply set up some distributed PC's (different IP's in different class C's) and just have P2P clients serving 'bad' versions of their own copyrighted music. Set up a little consortium of several different records companies, and it becomes DAMN hard to apply an effective filter.

    You might counter by setting up a central key list of 'correct' MD5 checksums, but then THAT list becomes a target of litigation from the RIAA.

    I don't like it, but it is an elegant solution. Use the power of P2P against itself. Anonymity works both ways.

    --
    Not just answers, the correct questions.
  2. Re:Well, atleast we know who skipped maths lessons by LordLucless · · Score: 5, Interesting

    Yes, you can probably counter all these tactics, but they would still do their job.

    If the labels can force p2p networks into a more complex model, it culls the less technically able users. I think if the p2p music sharing networks evolved into systems requiring md5 hash lookups, trust networks and other countermeasures, Joe Schmoe wouldn't be bothered using them. He wants something he can just hook up to, grab stuff, and leave.

    Music piracy has always happened. Its just booming now. They just want to stop the boom, not eradicate it entirely.

    --
    Just because you're paranoid doesn't mean there isn't an invisible demon about to eat your face
  3. Re:MD5, etc. by jawtheshark · · Score: 4, Interesting
    The main issue is so-called leaching.

    While I agree entirely with the fact that leeching is a problem, you should consider these facts:

    • Not many people have the bandwith to share. I don't, I share nevertheless but restrict upload speed to 3KByte/second and 2 allowed connections. Why? I have only DSL 256/64kbps, which means I have about 8Kbyte/second upload and I give away a potential 6. I find that generous. This is however not enough! People do not have the patience to wait at these speeds, most of the time uploads that start on my machine (I check that from time to time) about 99% are cancelled by the remote side.
      Yet, I download! Most of the time pr0n, and from time to time music (usually when I heard a good song on the radio).
    • Firewalls. I have a firewall... and I will not in any case turn it of because I want to run Gnucleus. This effectively reduces my own choices to download: anyone who runs a firewall too is not able to communicate with my machines. If everyone runs a firewall, P2P networks like Gnutella would become useless. PUSH only works when the receiver does not have a firewall.
    So technically this makes me a leech: I want to share files but due to bandwidth restrictions and due to firewall issues my sharing-abilities are clearly diminished. I have the goodwill but not the resources.
    It wouldn't be the first time a P2P client advertising T1 performance aborts me and I find that very frustrating. Probably people using the tools you mentioned, and considering me a leech. Nice... :-(

    Oh, and one thing about the whole P2P thing I don't like are the insanely large filenames filled with idiot keywords. Keywords in filenames....tsss.... Better would be a kind of database that associates keywords with files you chose on your harddisk. At least that way your files could have halfway decent-length filenames. Of course maintaining that would be a bit of work, but maintaining a filesystem filled with junk-filenames isn't any better.

    Finally a little question for the P2P junks out there: many people claim they get to learn new kinds of music by P2P sharing. I won't say it isn't true, but how? You still need a handle to search new stuff? You just type in random keywords, or what? Just curious, because I'd like to broaden my musical horizonts a bit.

    --
    Ahhh...the great dumpster continuum. Many a free computer will be found there. -- sowth (748135)
  4. Compare to the Tsetse fly approach by iiii · · Score: 4, Interesting
    The comparison of P2P use and animal populations is fascinating, and although the parallels will be limited it might yield some useful ideas.

    The most interesting parallel animal model has got to be the experiment designed to reduce (or eliminate) Tsetse fly (and other insects ) populations by releasing large numbers of sterilized males into the natural population.

    The process of P2P sharing would correspond to mating, since you have to have two participants. A successful mating would correspond to a user getting the file they wanted, and therefore being more likely to use the service in the future. Getting a dud file is like a wild female mating with a sterilized male. Yields no offspring, user is less likely to continue using service. One or two cases of sterile matings have no impact, but when it is a significant percentage the population will decline, I'm sure the parallel with P2P holds.

    The author seems focused on studying the best way to eliminate P2P, though, so he's probably hoping to get research grant money from RIAA.

    --
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