A new protocol for an efficient and green biometric-based security key establishment in WBAN’s

The advancement in Information and Communication Technology (ICT), has led to the emergence of many new services. Like, the healthcare services which are generally based on Wireless Body Area Networks (WBAN). The data processed by WBAN nodes and transmitted over these networks is very sensitive. Thus, to ensure the development of eHealth systems, security must be guaranteed. Due to WBAN’s constraints and limitations (e.g. computation, memory, and energy), a reliable security approach with optimal resource consumption must be established. The main objective of this work is to provide an optimal security approach for WBAN based on the use of biometrics (ECG: ElectroCardioGram). Indeed, the ECG will be used to generate and distribute, reliably and securely, symmetric cryptographic keys, on which the communication security will be based. The proposed approach is based on a time synchronisation method for the ECG signals availability within WBAN’s sensors, and on three entities to create the biometric-key using an error-correcting code and a morphing function. In addition, our approach allows WBANs to optimise their resources consumption.

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