[tor-talk] Fwd: Anonymous to attacks Hidden Wiki and othershiddenservice

[Jeroen Massar]

On 2011-10-24 13:34 , hikki at Safe-mail.net wrote:
[..]
> The problem is that they're using denial of service attacks to overload the 
> servers, and parts of the Tor network as a result. Tor doesn't seem to 
> handle this very well.

The internet does not handle (D)DoS attacks either.

> This takes down hidden services and nodes, 
> consequently censors Tor hidden services and makes several circuits halt. If 
> that isn't an attack on Tor, then I'm a fish with wings.

Wow, you are a fish with wings and you can even write emails ;)


DoS attacks by overloading a network are always possible and the only
real solution to that is to add way more capacity than the adversary has.

As with Tor there is no way to identify the source node, implementing a
rate limit on source is impossible. Doing rate limiting on the
intermediate nodes would just cause a network-wide ratelimit and also
impeed other traffic.

And if it was a proper DDoS attack you would run out of filtering
resources before you ran out of capacity.

In other words: not much you can do about it but add more nodes with
more capacity.

Greets,
 Jeroen