Secure data aggregation for sensor networks

Researchers show that data aggregation could save energy and bandwidth of the networks. But the unreliability of wireless links will weaken the performance of network aggregation deeply. Based on homomorphic encryption technology and the non-repudiation transmission protocol, a novel approach to protect sensor data secure is proposed. Because of fully using symmetric encryption algorithm, the protocol is efficient. Security analysis shows that the proposed protocol can guarantee data end-to-end confidentiality and authentication.