Mutual Authentication Protocol Using Hyperelliptic Curve Cryptosystem in Constrained Devices

Hyperelliptic Curve Cryptosystem (HECC) is well suited for secure communication in wireless sensor network as limited resources (storage, time or power) on sensor nodes restrict the use of conventional security techniques. We can construct genus 2 HECC on 80-bit finite fields in order to achieve the same security level as 160-bit ECC or 1024-bit RSA. This paper proposes a mutual authentication protocol based on Hyperelliptic Curve Digital Signature Algorithm for a secure access in constrained devices which allows both the entities to verify each other’s authenticity. Our experimental result shows that performance of the proposed system is comparable with that of ECC