Trust Management Architecture for a Space Dispersed Computing Network

Abstract

To facilitate the next generation of scientific missions, spacecraft must possess advanced processing capabilities to support computation-intensive and time-sensitive tasks. The core capability of the next generation space information network is computing. However, network security can become compromised in the pursuit of network exposure and openness. Trustability is an important goal of future space information networks. In this paper, trust management architecture for a space dispersed computing network (SDCN) is proposed for the first time. The layered structure is designed from the perspectives of trusted authentication, network transmission, distributed consensus, collaborative computing, and verification audit. The principle-based aspects of each layer are then discussed to improve the security and trustability of the SDCN. In addition, the effective combination of trusted architecture with typical space task scenarios is also discussed.