A year ago I researched DHTs quite extensively. I found them vastly
interesting for a long time dream of mine. A time-shared cooperative
storage network. A system, where public files can be stored.
At the time i was thinking a gigantic music storage service which would
let people stream songs from other peers as long as they contributed back.
I implemented Chord in Haskell and with it a replicated and fault
tolerant storage layer, but then I realized that I had no knowledge of
securing this DHT. I didn't even know what security would mean on such a
network. How do you prevent malicious nodes from destroying all the
data, or creating a million peers. How do you enforce good behavior so
that people share their disk space and bandwidth? All these questions
popped up in my head.
TLDR; I'm wondering if anyone here have experience with, or know of,
techniques for securing the function of structured overlay networks with
no central authority. I find this problem really really hard.
I would be really for any advise, research literature, concrete
implementation or anything in between that you guys think would be relevant.
--
Morten
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