Dynamic Decentralized Reputation System from Blockchain and Secure Multiparty Computation

In decentralized environments, such as mobile ad hoc networks (MANETs) and wireless sensor (WSNs), traditional reputation management systems are not viable due to their dependence on a central authority that is both accessible trustworthy for all participants. This particularly challenging in light of the dynamic nature these networks. To overcome limitations, our proposed solution utilizes blockchain technology maintain global information while remaining fully decentralized, secure multiparty computation ensure privacy. Our system limited specific settings, buyer/seller or provider/client scenarios, where only subset network raters others ratees. Instead, it allows nodes participate rating being rated. terms security, maintains feedback privacy semi-honest model, even presence up n−2 dishonest parties, requiring O(n) messages having an overhead. Furthermore, adopted techniques enable achieve unique characteristics accessibility, consistency, verifiability, supported by security analysis provided.