Distributed ID Management And Edge Based Resolver For Connecting Sensors In IoT

The Internet of things(IoT)is a structural model in which physical devices are connected to internet and can perform computations to process data for sharing with other devices in the network.All such devices working under different network topologies and protocol suits should be able to interpret the exchanged messages as per standardized formats.An identity is a set of credentials and identifiers of entities represented in a particular context such as entity name,entity ID,and different entity attributes.Likewise,a digital identity is the representation of an entity attributes in a digital way in order to access the systems and applications using the identity mediation process.However,using distributed ledger technology to tackle the problem of identity management in IoT has showed promossing results,as it leverage the identity management solution in a decentralized way follwong the nature of IoT architecture.In this thesis,we present the use of distributed technology to overcome the challenges of centralized identity management solutions in IoT.To prove the effectiveness of the proposed solution,we have proposed three application scenarios:(1)First,we review and summarize eHealth identity management scenarios.Furthermore,we investigate the existing decentralized identity management solutions and present decentralized identity models.In addition,we discuss the current decentralized identity projects and identify new challenges based on the existing solutions and the limitations when applying it to healthcare as a particular use case.(2)We propose a lightweight architecture and the associated protocols for consortium blockchain-based identity management to address privacy,security,and scalability issues in a centralized system for Io T.Besides,we implement a proof-of-concept prototype and evaluate our approach.We evaluate our work by measuring the latency and throughput of the transactions using different query actions and payload sizes,and we compared it to other similar works.The results show that the approach is suitable for business adoption.(3)We present a decentralized capability-based access control architecture designed for IoT consortium networks named IoT-CCAC.A blockchain-based database is utilized in our solution for better performance since it exhibits favorable features of both blockchain and conventional databases.The performance of IoT-CCAC is evaluated to demonstrate the superiority of our proposed architecture.IoT-CCAC is a secure,salable,effective solution that meets the enterprise and business's needs and adaptable for different IoT interoperability scenarios.