Security and privacy are critical points in sensors and actuators.
A malicious node can easily intercept transmitted
information or impersonate a receiver. Furthermore, privacy
seems to be quite challenging because of the inability of the
sensors to anticipate and sense possible eavesdroppers. If the
messages exchanged between the nodes have an MIC in the
headers and payload, it is impossible for an attacker to launch
a successful impersonation attack but it is possible to become
a passive listener or launch Denial of Service (DoS) attack. On
the other hand, if the payload message is encrypted then
a malicious node that has the encryption key can launch an
impersonation attack but not to become a passive listener.
The disclosure of sensitive information about the location,
track and identity of a user may cause significant problems for
him and his interconnected network and users.