(A) study on location-based authentiated key agreement scheme in wireless sensor and actor networks

Abstract

Wireless Sensor and Actor Network (WSAN) refers to a group of sensors and actors linked by wireless medium to perform distributed sensing and acting tasks. In WSAN, sensors gather useful information about the physical world, while actors take decisions and then perform appropriate actions upon the environment. The coexistence of sensors and actors introduces new challenges to realize WSAN. For securing WSAN, the new challenge is to provide the security mechanisms between actors and sensors because this problem is not addressed by the previous work for Wireless Sensor Network (WSN). In this thesis, we focus on providing security mechanisms between actors and sensors. Specifically, we propose location-based Authenticated Key Agreement (AKA) scheme, operated over ID-based cryptosystem. The proposed scheme provides authentication and key establishment between actors and sensors and further offer the countermeasure against Denial of Service (DoS) attack of routing layer by utilizing the location information of sensors to generate location-based public and private key pair of sensors. We also analyze the security and performance of the proposed scheme. The proposed scheme provides the stronger security than other schemes for WASN in terms of resilience to node compromise and DoS attack. Although we try to assign smaller overhead to sensors to make sensors compute no pairing operation, the consumption of the energy of sensors is about twice than that of Yu et al.`s scheme.