Abstract
AbstractThe wireless body area network in the smart medical systems uses wearable devices to remotely monitor the patient’s physiological information and transmits the information to the medical center through an open channel. To prevent security issues such as privacy leakage and malicious attacks in the wireless body area network, anonymous authentication and key negotiation are required between the sensor and the server. The protocol must not only satisfy confidentiality and security but also provide anonymity and untraceability for sensor nodes. In response to this problem, this paper proposes an authentication and key agreement protocol for sensors and servers based on blockchain technology in the wireless body area network, with the help of session keys for subsequent access and data transmission. The safety of our scheme was evaluated through an informal safety analysis. In addition, our scheme was also simulated by using ProVerif. The experimental results showed that the scheme is safe. KeywordsWBANKey agreementMutual authenticationBlockchain
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