Apprising Trust Key Management in IoT Cross-Layer Framework

Abstract

Internet of things (IoT) networks is the buzzword these days in Industry 4.0. IoT nodes are resource constrained and should be light enough to minimize the power consumption. IoT paradigm does not depend on human intervention at each and every step. There is a need of “trust” between communicating entities. Devices at physical layer are vulnerable to various attacks such as denial of service (DoS) attack, wormhole attack, etc. Trust becomes more important when vulnerability of attacks increases to the devices. This establishment of trust helps in handling risks in a controlled way in unpredicted situations as well as providing better services at infrastructure level. Social environments can evaluate trust while seeing the relationship between interacting parties; however, in service-oriented industries quality of service (QoS) parameters must be maintained while evaluating trust. So, in this chapter a unique metric expected transmission count (ETX) is employed for implementing QoS while evaluating trust between interacting entities using Cooja simulator.