A Hierarchical Trust Management Architecture Based on Blockchain for Crossover Service

As an emerging business model of the modern service industry (MSI), crossover service integrates services from enterprises and organizations in different fields. By combining computer and communication technologies, crossover service can improve the efficiency and quality of services. However, due to the complexity and heterogeneity among different industries, there still remain huge challenges regarding the service convergence process. One of the most important issues is the trust management in crossover services. The establishment of trust is the basic requirement of service convergence. In this paper, we first present the overview of crossover service and the issue of trust management by analyzing the specific application case of crossover service. Besides, based on blockchain technology, we will propose a decentralized trust management architecture to address the trust management issue in crossover service. The introduction of blockchain will significantly enhance the security of the crossover service. Moreover, a complete trust delivery relationship among different objects will be presented for the proposed trust management architecture. Finally, the feasibility of our proposed trust management architecture and the future research challenges will be illustrated in detail.