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Some more ideas on how to harden the DHT.

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irungentoo 2013-07-11 08:41:24 -04:00
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docs/DHT_hardening.txt
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@ -14,4 +14,21 @@ Each client_id is the public key of the peer so it would be trivial to encrypt
the DHT requests with crypto_box(). This would completely defeat the first
attack.
Make each peer send the information of at least one of his online friends in
every send nodes response. (Might be bad as any node can now know who our
friends are)
Limit the maximum number of peers with identical ips that we keep connected to
in our DHT. (Not a real solution)
Require each node to solve some kind of captcha in order to connect to the
network. (Bad idea.)
Require nodes to crack hashes or solve other computationally intensive
problems in order to be accepted in the network. (Kind of like bitcoin)(This is
probably a bad idea as our application needs to work on phones which are low
power devices)
Make each node test other nodes to see if they respond correctly before sending
them as part of their send nodes response.
...