Confidential aggregation for wireless transmissions

Wireless sensor network would like to act a secure data aggregation in a cluster. In the previous scheme, there was no efficient data aggregation considering encrypted-data aggregation in multi-layer cluster environment. More specifically, the scheme doesn´t provide multi-layer cluster environment due to one-hop to the base station and it pre-installs keys for verification and data aggregation in the Cluster Head before deployment, so it limits the flexibility of system deployment and aggregation. Besides, it doesn´t support dynamic key management to bring more flexibility in data aggregation. Therefore, this paper proposes data confidentiality for wireless sensor transmission with three layers. Three layers which are composed of public, Sensor Key Translation, and confidential layers operate to solve these problems. The paper extends privacy homomorphism functions to support dynamic data aggregation and the sensors can be moved to another cluster using three layers.