Compromised-node and denial-of-service are 2 keyattacks in wireless sensor networks (WSNs). In this paper, westudy routing mechanisms that circumvent (bypass) black holesformed by these attacks.We have a tendency to argue that existing multi-path routingapproaches are vulnerable to such attacks, mainly due to theirdeterministic nature. Therefore once an adversary acquires the routingalgorithm, it can compute the identical routes known to the source,and hence endanger all data sent over these routes. In thispaper, we have a tendency to develop mechanisms that generate randomized multipath routes. Under our design, the routes taken by the “shares”of various packets amendment over time. So whether or not the routingalgorithm becomes known to the adversary, the adversary stillcannot pinpoint the routes traversed by each packet. Besidesrandomness, the routes generated by our mechanisms are alsohighly dispersive and energy-ef?cient, creating them quite capableof bypassing black holes at low energy value. Extensive simulationsare conducted to verify the validity of our mechanisms.
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