Hello everybody, I just joined the list.

It looks like one plank of the MPAA and RIAA strategy for dealing with P2P file
transfers is becoming clear. They are asking Congress to give them "the right
to hack" to stop copyright infringement. Here's an article:
http://news.com.com/2100-1023-945923.html?tag=politech

This raises the question of Freenet's robustness to "attack" to a new level.
Has anybody thought seriously about what sort of attacks might be waged against
Freenet and what sort of countermeasures are in place or are needed to survive
such attacks?

In particular, content flooding is one type of attack. A set of bad-guy nodes
could infiltrate and simply request for absurdly large quantities of files to
be inserted.

Another type of attack would be to try to identify and monitor a sufficiently
large or well-chosen portion of the network to use legal and/or technical DOS
techniques against the nodes.

Yet another would be to try to infiltrate a large number of nodes that would
purposefully respond with malicious signals in an attempt to degrade Freenet's
retrieval mechanisms. For example, a "dumb" node could respond to insert
requests by doing nothing but reporting success and to retrieval requests by
always report failure or supplying bogus replies.

Has anybody thought about other attacks or how to defend against the above?

If a bad-guy node can be identified, is there any mechanism to expel or
blackball it? If there is, how do you prevent this mechanism from being
attacked? If there isn't what percent of nodes have to be comprimised before
the network effectively dies?


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