Smart City Security Based on the Biological Self-defense Mechanism

With the development of the Smart Cities, the security has become an urgent necessity. It refers to an urban transformation which, using latest ICT technologies makes cities more efficient. Composed of a growing Internet of things (IoT), cloud computing, big data analysis, mobile Internet via broadband connections, or objects and sensors via low-cost data links, the greatest challenge today is to meaningfully manage such systems in the widespread virus and attacks. Given that these systems will greatly impact the operation of smart city, issues related to privacy and security has come into limelight. Just like the existence of a biological self-defense system in the body plays the important roles, the digital Bio Self-Defense System (BSDS) is designed to protect the security of smart city including four major defenses: ① Digital Skin is responsible for distributed key generation and storage. ② Immunity System improves fraud prevention and anti-attack ability. ③ Self-healing includes instant snapshots, automatic backup, active recovery strategies. ④ Nerve monitory uses multi-information digital nervous system integration, multi-factor cross-validation methods to achieve self-organizing, adaptive, self-defense capabilities. This paper summarizes the key challenges, emerging technology standards, and issues to be watched out for in the context of privacy and security in smart cities. A key observation is that bionic system, model and norm designed can meet high security requirements of smart city to avoid third party abuses.