The following technical report is available from
http://aib.informatik.rwth-aachen.de:
Tampering with Motes: Real-World Physical Attacks on Wireless Sensor Networks
Alexander Becher, Zinaida Benenson, Maximillian Dornseif
AIB 2005-24
Most security protocols for wireless sensor networks (WSN) assume that
the adversary can gain full control over a sensor node through direct
physical access (node capture attack). But so far the amount of effort
an attacker has to undertake in a node capture attack is unknown. In
our project we evaluate different physical attacks against sensor node
hardware. Detailed knowledge about the effort needed for physical attacks
allows to fine tune security protocols in WSNs so they provide optimal
protection at minimal cost.