A cyber physical system (CPS) is a deeply embedded system that can be applied to home devices, medical equipment, cars, and so on. Because it is expected that a CPS system will be integrated with other CPSes designed for various areas to ultimately create a global CPS network, IPv6 is suitable for these large-scale integrated network environments. In addition, it is important to reduce high network load for efficient device control. This paper proposes a dynamic control middleware for an efficient search and control of devices on an IPv6-based global network from anywhere through smartphones along with a new mechanism intended to drastically reduce the number of messages that are generated for searching devices. We construct an IPv6based testbed using laptops and smartphones to demonstrate that this middleware can be adopted by mobile devices for dynamic remote control of home devices.

Recently, cyber-physical system is widely used for smart system control in various fields. Various functions of the cyber-physical system must overcome the limited hardware resources constraint of an embedded system. In addition, the data required from the industrial cyber-physical system are critical; therefore, a highly secure encryption technique is required. However, security and computational throughput are incompatible with each other in the cryptographic technique; therefore, the industrial cyber-physical system needs to adopt a highly efficient and secure encryption technique considering the limited available resources. This study applies the m-folding method to the highly secure elliptic curve algorithm to improve efficiency and proposes the cryptosystem optimized for the resource-constrained industrial cyber-physical system. The proposed m-folding method–based elliptic curve encryption showed 50% faster encryption than the existing methods.

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