A Design of Secure Communication Protocol Using RLWE-Based Homomorphic Encryption in IoT Convergence Cloud Environment

摘要

A super-connected society is emerging in which things and things or people and things communicate with each other through the Internet of Things. Since devices in the existing IoT environment have limitations such as low power, volume, and performance, a new paradigm has been suggested by integrating with cloud computing technology. However, there are still issues to resolve in the new convergence paradigm in order to mitigate vulnerabilities regarding data management and information protection for security. Thus, this study designs a RLWE-based homomorphic encryption communication protocol for user authentication and message management in a cloud computing-based IoT convergence environment. We conducted performance analysis on a communication protocols in the existing IoT environment and the proposed communication protocol to ensure safety and security. The study verified safety and security by conducting performance analysis of current IoT environment communication protocol and proposed communication protocol. The study conducted comparative analysis on time complexity and space complexity in accordance with encryption and decoding of proposed communication protocol to confirm that it provides strong security and equivalent level of efficiency. Also, by designing a communication protocol, the study aimed to provided a safe communication infrastructure from user authentication to data transfer to users.