Secure and Self-Stabilizing Clock Synchronization in Sensor Networks
Paper i proceeding, 2007

In sensor networks, correct clocks have arbitrary starting offsets and nondeterministic fluctuating skews. We consider an adversary that aims at tampering with the clock synchronization by intercepting messages, replaying intercepted messages (after the adversary’s choice of delay), and capturing nodes (i.e., revealing their secret keys and impersonating them). We present the first self-stabilizing algorithm for secure clock synchronization in sensor networks that is resilient to such an adversary’s attacks. Our algorithm tolerates random media noise, guarantees with high probability efficient communication overheads, and facilitates a variety of masking techniques against pulse-delay attacks in the presence of captured nodes.

Clock-synchronization

Secure and Resilient Computer Systems

Sensor-Network Systems

Self-Stabilization

Författare

Jaap-Henk Hoepman

Andreas Larsson

Chalmers, Data- och informationsteknik, Datavetenskap, Datavetenskap, Datakommunikation och distribuerade system (Chalmers)

Elad Schiller

Chalmers, Data- och informationsteknik, Datavetenskap, Datavetenskap, Datakommunikation och distribuerade system (Chalmers)

Philippas Tsigas

Chalmers, Data- och informationsteknik, Datavetenskap, Datavetenskap, Datakommunikation och distribuerade system (Chalmers)

Lecture Notes in Computer Science

0302-9743 (ISSN)

Vol. 4838/2007 340-356

Ämneskategorier

Telekommunikation

Programvaruteknik

Datavetenskap (datalogi)

ISBN

978-3-540-76626-1