基于区块链的信息物理融合系统的信息安全保护框架

信息物理融合系统(Cyber-Physical System,CPS)受到了学术界的广泛关注,其面临的安全性问题及防护措施也日益成为领域研究热点。通过梳理现阶段国内外关于CPS安全问题及其防护措施的研究成果发现,基于整体多层次统筹以及分布式架构的防护措施成为了当前的研究导向,这与区块链技术的整体性分布式架构特征相一致。在区块链分布式拓扑结构及其信息安全特性的基础上,提出了融合区块链技术与CPS的防护思想,论证了结合二者的可能性,并构建了实现二者深入融合的BCCPS框架机制。重点介绍了BCCPS框架在基础层级和集成层级两个层面上的具体构造情况。最后,从信息安全的保密性、完整性、可用性、可追溯性4个维度论证了BCCPS框架的安全性。该研究为建立安全、健壮的CPS提供了新思路。

Information Security Framework Based on Blockchain for Cyber-physics System

Cyber-physics system has drawn widespread attention of academia,and the protection problems and protection measures it faces are also increasingly becoming the research focus in the field.By combing the current research results about the security issues of cyber-physics system and corresponding protective measures at home and abroad,it is found that the security protection measures based on the overall multi-level coordination and distributed architecture have become the current research direction,which is in line with the features of distributed architecture of blockchain technology.Based on the introduction of the distributed topology of blockchain and its information security features,this paper proposed the idea of security protection in which the blockchain technology is integrated with the cyber-physics system,proved the possibility of combining the two parts,and constructed BCCPS framework mechanism of integrating the two parts deeply.The specific construction of BCCPS framework at both the basic level and the integrated level was highlighted.Finally,the security of BCCPS framework was demonstrated from four aspects:confidentiality,integrity,availability and traceability of information security.This research provides a new idea for establishing a secure and robust cyber-physics system.