Anonymous and provably secure authentication protocol using self-certified cryptography for wireless sensor networks

摘要

The rapid development of wireless sensor networks (WSNs) has brought great convenience to people's lives, as well as huge security challenges. Recently, Kaur et al. proposed an improved user authentication protocol for WSNs. However, we find that their protocol cannot provide user untraceability and perfect forward security, and it fails to resist the privileged insider attack because it only uses lightweight cryptographic primitive to ensure the security of the scheme. To overcome the weaknesses in Kaur et al.'s protocol, we propose a secure anonymous authentication with key agreement protocol for WSNs. It uses self-certified public key cryptography to guarantee confidentiality, security and availability in public channels. Additionally, through formal and informal security proofs, we demonstrate that the proposed scheme can achieve the expected security properties. By comparing with other related protocols on execution time and communication cost, we find that our protocol is more secure and efficient.