Lightweight Multi-party Authentication and Key Agreement Protocol in IoT-based E-Healthcare Service

Abstract

Internet of Things(IoT) is playing a promising role in e-Healthcare applications in the current era; nevertheless, security is one amongst the significant challenges in its success. The requirement of resource constraint security mechanism makes the design and implementation of it more challenging. Existing security mechanisms concentrate on two-party mutual authentication; but, a scenario, for example, Healthcare requires multi-party authentication where secure communication is essential amongst a patient, e-healthcare test-devices and doctors. Many attacks from an eavesdropper possibly endanger authentication and lunch further attacks to the IoT system. This paper proposed a lightweight multi-party authentication and key-establishment protocol in IoT based e-Healthcare service access network to counter such attacks in resource constraint devices. The protocol has used lattice-based cryptographic constructs such as Identity-based Encryption(IBE) to acquire security, privacy and efficiency. The protocol is tested by a formal security tool, Scyther, for its security verification. It testifies the security properties of the protocol to withstand all practical attacks concerning authentication. In addition, a practical setup of the proposed scheme using IBE cryptographic constructs is provided. Further, the power consumption of the scheme is evaluated using Contiki-Cooja simulation platform. Further, security analysis for various attacks and comparison with other existing work are also provided to show the robust security characteristics of the protocol.

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