Abstract

Security issues and Internet of Things (IoT) become indispensable part in digital community as IoT develops with the pervasive introduction of additional “smart” sensors and devices over the last decades, and it necessitates the implementation of information security principle in digital community system. A three-level criticality model to determine the potential impact is proposed in digital community system when various devices lost in this paper. Combining the actual security requirement of digital community and characteristics of IoT, a hierarchical security architecture including defense-in-deep cybersecurity and distribute secure control is proposed. A high-assurance trust model, which assumes insider compromise, which exists in the digital community, is finally proposed according to the security issues analysis.

0 Introduction

Digital community is a connected community that combines broadband communications infrastructure with flexible and service oriented computing infrastructure based on open industry standards[1]. The digital community system encompasses everything from data perception to data transmission and control system. With the pervasive introduction of additional “smart” sensors and actuators over the coming decades, cybersecurity becomes more important than ever before, necessitating the implementation of information security principle throughout the entire digital community system. 5

Conclusion

Digital community develops with increasing introduction of additional “smart” devices and programmed sensor over the coming years, which will make cybersecurity issues more important and complicated. We use a three level criticality model to determine the potential impact that exists in digital community system, and implement a defense-in-deep approach for security issue to increase digital community reliability. A high-assurance trust model, which assumes insider compromise existing in the digital community, is finally proposed according to the security issues analysis. The proposed security model provides more security services and less security management issues than related security models.