Abstract 

With the development of 5G networking technology, the Internet of things (IoT) has been applied on many areas. Although IoT can bring us convenience, it has some potential security flaws due to most of IoT devices being resource constraint, e.g., low computation power and limited memory.This talk will discuss some security enhancements of IoT environment for computation outsourcing and multicast communication with fine grained access control to improve both performance and privacy protection within IoT devices. The research approaches are also implemented on Raspberry Pi for carrying out advanced experiments.