3.0 Specific P2P Attacks and Defenses

We will consider two different planes of attack in this section: the data plane
and the control plane. Attacking the data plane means attacking the data used
by the P2P application itself, for example by poisoning it or rendering it in any
way unavailable. On the other hand, attacking the control plane means directly
attacking the functionality of the P2P application, trying to render it slower
or as inefficient as possible. This is generally done by using weaknesses in the
routing protocol. Depending on the attacker’s goal, he will choose to attack in
one plane or the other, or both.
These two planes are not completely independent. For instance by attacking
on the data plane and corrupting many files, users will tend to download more
instances of a file thus slowing down the traffic which is typically the aim of a
control plane attack. Vice versa, eclipse attacks which are in the control plane
can render data unaccessible, which is the primary objective of a data plane
attack.
The possibilities of attacks are enormous in P2P networks. Now follows an
analysis of the most common attacks as well as some appropriate defense mechanisms.

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