BA-LEACHC: biphase authentication based LEACH-C protocol for wireless sensor networks

The intention in Wireless Sensor Networks (WSNs) is to group sensed raw facts from geographical

area under monitoring. Yet, sensor nodes sometimes report tempered (falsified) information

resulting from malicious nodes. Hence, various studies recommend pre-identification of malicious

node as essential for reliable and healthy networks. Different techniques have been proposed to

deal with bogus sensor nodes in WSNs, ranging from authentication to trust based approaches. In

this research, a recent lightweight scheme called Biphase Authentication Scheme (BAS) is utilised

with genetic algorithm (GA) to integrate with (LEACH-C) Low Energy Adaptive Clustering Hierarchy

Centralized clustering approach for identification as well as disjoin bogus nodes in WSN. BAS offers

small-scale authentication based on unique identity number, master key, key generation based

algorithm plus pairwise key. The LEACH-C genetic algorithm utilized with BAS successfully cross

examine paths for all nodes connected to failed cluster head therefore, enabling for easy

identification of sensor node linked to unsafe path and finally allowing for authentication process

to isolate malicious node. The objective fitness approximation of GA in our work might appropriate

basing on, extremely high calculation time of single solution, missing of the accurate model for

fitness calculation and uncertainty of fitness function or distortion. The proposed approach (BA

LEACHC) is more effective and resistant against denial of service attacks (DoS) due to successful

bogus node identification and removal. Moreover, the envisioned protocol is able to provide

security with minimal power consumption of 10.6 joules lower than its comparatives.