An Efficient User Authentication and Session Key Agreement in Wireless Sensor Network Using Smart Card

Securely accessing the information from sensor nodes is the premier need and becomes the challenging area in wireless sensor networks (WSNs) and internet of things environment (IoT). Consequently, keeping up the protection of shared information, authentication assumes a vital role. Where after the mutual authentication, it makes the agreement of the session key among the participants. In this regard, Kalra et al.’s proposed a mechanism for client authentication and session key agreement, and guaranteed, their scheme is highly secured against many possible and well-known threats. However, in this paper, it has been demonstrated that their scheme can suffer from sensor node capturing attack, leakage of gateway node’s secret key and also impractical for session key agreement. Further, an improved scheme has been proposed to conquer the security flaws of Kalra et al.’s scheme. In addition, to check the security properties and to prove the mutual authentication among the participant, the proposed scheme has been verified by ProVerif protocol verification tools. Finally, a comparative study with the other related schemes has also been defined to prove the efficiency of the proposed scheme.