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Privacy In BitTorrent By Hiding In the Crowd

pinguin-geek writes "Researchers at the McCormick School of Engineering and Applied Science at Northwestern University have identified a new 'guilt-by-association' threat to privacy in peer-to-peer (P2P) systems that would enable an eavesdropper to accurately classify groups of users with similar download behavior. While many have pointed out that the data exchanged over these connections can reveal personal information about users, the researchers shows that only the patterns of connections — not the data itself — is sufficient to create a powerful threat to user privacy. To thwart this threat, they have released SwarmScreen, a publicly available, open source software that restores privacy by masking a user's real download activity in such a manner as to disrupt classification."

32 of 240 comments (clear)

  1. only works with by esocid · · Score: 3, Insightful

    Vuze (azureus), which I dropped because of how bloated it is. Why java? utorrent is the way to go.

    --
    Absolute power corrupts absolutely. indymedia
    1. Re:only works with by Akido37 · · Score: 5, Insightful

      Vuze (azureus), which I dropped because of how bloated it is. Why java? utorrent is the way to go.

      Vuze's bloat problem isn't Java.

      It's feature creep. Sometimes I just want to download a torrent.

    2. Re:only works with by 0100010001010011 · · Score: 5, Funny

      Utorrent, which I dropped because of how bloated it is. Why GUI? rtorrent is the way to go.

    3. Re:only works with by talz13 · · Score: 3, Insightful

      Since it runs on every platform that supports java? Since it has useful plugins? Since taking up 1% of my CPU and 300MB of ram to seed 10 torrents doesn't bother me much on a quad core with 4GB of RAM?

    4. Re:only works with by Rip+Dick · · Score: 5, Funny

      Yeah, it's 4,500K memory footprint is ridiculous.

    5. Re:only works with by courseofhumanevents · · Score: 4, Funny

      I wish there was a +1 Correct mod. This isn't exactly insightful or interesting.

    6. Re:only works with by drchoffnes · · Score: 4, Informative

      (From the one of the software authors) UTorrent doesn't support plugins and is closed source. If that were to change, we'd happily develop for it.

    7. Re:only works with by KenMcM · · Score: 5, Informative

      That'd be +1 Informative.

    8. Re:only works with by Kjella · · Score: 3, Insightful

      Vuze's bloat problem isn't Java.

      While I know some stunning things done in java, the four most bloated applications I know are also written in java. I guess it's like C/C++ and buffer overflows, those who like the langauge say good developers don't do that but in practise java seems to lend itself easily to bloat. In theory any developer can do anything in any language that's Turing-complete, it all comes down to how productive real developers are in practise...

      --
      Live today, because you never know what tomorrow brings
    9. Re:only works with by AliasMarlowe · · Score: 4, Funny

      Vuze's bloat problem isn't Java.
      It's feature creep. Sometimes I just want to download a torrent.

      I'd call it malfeature creep with a commercial bent, in an unnatural union with a hideously malformed GUI.
      I installed Vuze innocently and optimistically enough, but as soon as I started it and saw the abomination appear, its days - nay, minutes - on my system were numbered. It was utterly expunged after a quick kill.

      --
      Those who can make you believe absurdities can make you commit atrocities. - Voltaire
    10. Re:only works with by Ilgaz · · Score: 3, Insightful

      Well, it seems to be open source and gives the developers all the stuff they need to code such a plugin. Except memory usage (which I got plenty to use), I don't see it uses more than 2-5% CPU too. As a person who wants to use P2P technology but in a way that I can pay for the content, their "Vuze Guide" gives me what I need too.

      and uTorrent? The one acquired by DRM loving Bittorrent.com because it was way too popular compared to their junk client and nobody knows what is inside it anymore? Before attacking an application as "bloated", pick your other suggestion well.

      Even if it supported plugins, releasing such a privacy enhancing plugin for uTorrent would be the irony of the month.

    11. Re:only works with by Ilgaz · · Score: 3, Informative

      Set it to Run in "Advanced Mode" on startup. And for "just downloading a torrent", I don't think anything will beat rtorrent from console.

    12. Re:only works with by Mister+Whirly · · Score: 5, Funny

      Exactly. What is the point of having your CPU idle? Wouldn't the ideal be to use as much resources as you can all the time? I have never understood why people build these massive computing machines and then never do any serious computing.

      --
      "But this one goes to 11!"
    13. Re:only works with by Anonymous Coward · · Score: 3, Funny

      Correct! :)

      I mean.. informative!

  2. Ahh, great, just what we needed by galorin · · Score: 5, Funny

    Now my downloading of Linux ISO's and pre-release movies is going to be mingled with horse porn. Just what I always wanted.

  3. I Know Where This Is Going by Anonymous Coward · · Score: 5, Insightful

    RIAA Lawyer: We obtained a warrant to search the defendant's home when traffic was identified as being characteristic of SwarmScreen. When the defendant's machine was recovered, we discovered they indeed had SwarmScreen installed--a program only used to subvert our techniques of classifying thieves. That, ladies and gentlemen of the jury, should be enough for indication of guilt.

    The endless cat & mouse game continues ...

  4. Re:So now not only am I guilty being a linux nerd by Ontheotherhand · · Score: 3, Insightful

    The best defence must be to start objecting to the state behaving in such a facist fashion. Probably best to start objecting before they break down the door, though.

  5. Legitimate uses by olddotter · · Score: 5, Insightful

    Can companies that use bit-torrent to do legitimate work speak out in its defense? I fear the "guilty by association" is much more along the lines of "you use bit-torrent, therefore your guilty".

    Frankly if this improves upon that, it might be a help to bit-torrent users that aren't pirates.

  6. Re:Here's an idea... by holychicken · · Score: 5, Insightful

    It does not necessarily have to do with stealing. It is a privacy concern. Do you want someone being able to watch you without you knowing and getting a ton of information about you by doing so? Whether or not I am stealing, I do not want that. I suspect you do not want that either.

  7. Re:So now not only am I guilty being a linux nerd by castironpigeon · · Score: 5, Funny

    Help! Help! I'm being repressed!

    --
    mmmm...forbidden donut
  8. Download random data from BitTorrent by JeffSpudrinski · · Score: 5, Insightful

    Okay...

    According to TFA, their software will download random data from BitTorrent to your system to hide what you really wanted to dowload within a cloud of random downloads.

    Are you SURE you want to allow random data from BitTorrent to be downloaded onto your computer? There's a LOT of stuff out there that I wouldn't want even the remote chance (e.g. being selected randomly) of having it on my computer.

    Just sayin'.

    -JJS

    1. Re:Download random data from BitTorrent by Kjella · · Score: 4, Interesting

      If you actually read the details you will find that it's not really random, but random from a set you give it. So, if you give swarmscreen a site w/, legal software, then it would only download from there.

      Unless there's a significant overlap between both sources causing confusion on whether you're downloading legal or illegal content, I don't see how it can work. If it's as distinct as they say it should be easy to create a signature of legal sites and subtract any connections to them from your total bittorrent presence, effectively dissolving the smoke screen.

      --
      Live today, because you never know what tomorrow brings
  9. Summary of Story by manekineko2 · · Score: 5, Insightful

    Here's a summary of their findings, because the one provided by Slashdot doesn't really do a good job in my opinion of describing it.

    BitTorrent downloaders apparently fall into "communities" that have very similar downloading patterns. In light of this, they think that it would be possible for an argument to be made, that if one member of a community is downloading X, that the behavior can be imputed through guilt-by-association onto all other members of that community. Therefore, you wouldn't necessarily need evidence that a given member of a community actually engaged in the downloading, due to the high degree of correlation between community member downloads.

    This strikes me as a bit of dubious reasoning from a legal standpoint, as just because you hang out with a bunch of mobsters all day, and there's a high correlation of that with committing theft, doesn't mean they can try you for robbery just through guilt-by-association without more evidence that you're a robber. Still, courts have made weird conclusions in the past simply because computers and the Internet are involved.

    For now, their software and idea mostly seems like a neat proof-of-concept. Until someone actually tries to deploy this legal argument in a court somewhere, I don't think I'll be losing too much sleep over this. Might be worthwhile for someone in a totalitarian regime that for some reason needs to be downloading over BitTorrent, but I don't know how realistic a concern that really is.

  10. .... alright... Why terminal? Raw socket is the wa by SmallFurryCreature · · Score: 5, Funny

    ...alright...why terminal? Raw socket is the way to go!

    --

    MMO Quests are like orgasms:

    You may solo them, I prefer them in a group.

  11. Re:.... alright... Why terminal? Raw socket is the by c0p0n · · Score: 5, Funny

    Unless you can interface directly with the network media using a battery and a metal pin, STFU.

    --

    Your head a splode
  12. Only protects from profiling ISPs by bjamesv · · Score: 5, Insightful

    By firing up random connections, this only protects you from an ISP that is profiling your use. The MPAA can still go fire up a bitorrent client, join a swarm downloading content they claim copyright on and start writing down the IP of everyone who is participating. And then they call up your ISP. this 'masking' technique doesnt actually 'mask' anything very well.

  13. Re:.... alright... Why terminal? Raw socket is the by Mister+Whirly · · Score: 5, Funny

    I can get WiFi on the fillings in my teeth.
    Oh, hang on a sec, downloading an attachment!

    --
    "But this one goes to 11!"
  14. Re:.... alright... Why terminal? Raw socket is the by pbhj · · Score: 3, Funny

    What do you need the battery for? Stick the pin in your brain at one end and use nerve impulses to generate the charge to send the signals with ...

  15. Re:only works with Vuze by memorycardfull · · Score: 3, Informative

    Agreed. The word is adware.

  16. Re:only works with Vuze by YouWantFriesWithThat · · Score: 3, Informative

    what in the devil are you talking about? is that a new version? are you running it in simple mode?

    seriously, i used Vuze last night. there were no ads, no commercials, nothing. i always run in advanced mode. there is a menu bar and 2 windows: uploads, and downloads. i don't use it to play media or manage the files. dump files to the desktop and i move them where i want.

    shit, if there are commercials in the new version i am not going to update.

  17. What's wrong with PeerGuardian? by macraig · · Score: 3, Informative

    If one doesn't like eavesdropping, what's wrong with simply dropping connection attempts from the IPs of known or suspected eavesdroppers? If I'm using PeerGuardian, why do I need SwarmScreen?

  18. Re:Here's a novel idea: Don't FUCKING STEAL !! by mpeskett · · Score: 3, Insightful

    I'll be damned if I'm writing up a whole new response every time someone equates copyright infringement with stealing, so instead you can read what is mostly a comment I posted to a discussion of The Pirate Bay's trial (edited a little to be more universal)

    Copyright infringement is a distinct thing from theft. They are two separately defined legal terms, plain and simple, not the same thing. They are both illegal. They are not the same crime.

    The ethics of whether copyright law should be changed or abolished, whether infringement should be made legal (and hence would no longer be "infringing") and whether illegal copyright infringement can be right or moral are all entirely separate issues. The only thing I'm saying here is that "Theft" and "Copyright Infringement" are two clear and distinct terms with different meanings under the law. There is no reason whatsoever to conflate them, and pretend they mean exactly the same thing.

    Well, not quite true - there is one reason, and as far as I can see it's the only reason, and that's because "Pirates are stealing our music" has more emotional impact then "Our copyright is being infringed". The whole "you wouldn't steal a..." campaign, for example, relies on erasing the difference in people's minds between theft and infringement, to make them feel bad about something they may otherwise have been doing without thinking about it. This doesn't change the legal side of things, only peoples' perceptions, but perceptions can be powerful. The industry are using that to their advantage and I for one don't like their way of doing it, so I'll insist on correct use of the terminology.

    You could even draw parallels with Orwell (although doing so feels cliched) - the 'Newspeak' idea revolved around removing words with similar meanings so that varied and nuanced ideas would be collapsed into a single concept. All forms of political dissent, freedom fighting and the like would be lumped together with terrorism and criminality, under the label "thoughtcrime", making the not-so-bad sound as bad as the very worst. Putting theft and copyright infringement together under "stealing" is the same - suddenly infringement sounds just as bad as theft because you're calling both of them stealing.

    Legally speaking, they're separate, and whether infringement is as morally bad as theft or not is a side issue to be determined separately (and personally) but if we let them convince us that they're just the same thing then the debate will be over without it ever having taken place.