... layer SNEP & µTESLA Data and Information spoofing, Message Replay Attack Traditional wireless sensor network Semantic security, Data authentication, Replay protection, Weak freshness, ... antenna and hence they can affect much more than an attacker with only ordinary sensor nodes. A single laptop-class attacker might be able to eavesdrop on an entire network. B. Attacks Wireless ... synchronization between all communicating parties, implements temporal leashes Random Kay Pre-distribution Data and information spoofing, Attacks in information in Transit Traditional wireless...