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The Internet of Things (IoT) stands as one of the emerging technologies because of its novel innovations and solutions for countless domains. As one of the enabling components for IoT, Wireless Sensor Network (WSN) is utilized for various real-world appliances to collect valuable raw sensed data. Here, valuable data from the sensor nodes are suitable to access with the help of a gateway node through the registered user. However, due to the resource constraints of sensor nodes and the exposed nature of the wireless frequency, security has turned out to a considerable task in WSN. Authentication is a primary security facility that can ensure the legitimacy of data access in WSN. There are numerous 2-factor verification protocols in related work based on a smartcard, public-key, and password. However, most of them have trouble reconciling proficiency and security necessities; hence, it is still challenging to implement a 2-factor authentication scheme to satisfy security topographies while preserving suitable proficiency. We designed an enhanced 2-factor verification scheme based on ECC and biometric information in this work. Our proposed scheme accomplishes distinct security features and protocol-designed logic verified with the AVISPA tool. Simulation results demonstrate that the projected scheme is robust, energy-efficient, and well-suited to WSN environments.

An Improved 2-Factor Authentication Scheme for WSN Based on ECC