Energy efficient secret aggregation for wireless sensor networks

Abstract

Sensor networks involves large amount of nodes spread over a region. Data aggre¬gation is an important technique for reducing the amount of data to be transmitted in the networks. Data confidentiality is a crucial requirement in many applications. Many existing protocol for secure aggregation do not provide confidentiality. To re¬duce the computations, it is desirable to have a protocol in which aggregation can be done without decrypting the data at intermediate nodes. This thesis proposes a protocol in which nodes can do data aggregation without learning the neighboring nodes data. The scheme is based on Processing Over Encrypted Data. Much work has been already done in various fields using this cryptographic construct but to the best of our knowledge the field of sensor networks is still untouched. Using this con¬struct in the field of sensor network will be a novel idea because it leads to energy efficient secure aggregation and can open new directions of research in the field of wireless sensor networks.