Modified Hardware Security Algorithms for Process Industries Using Internet of Things

Abstract

Embedded devices used in process industries are vulnerable to a variety of attacks due to its large number of deployments to reduce the measurement and process complexity. The security threats increase due to the wide usage of embedded systems, wireless networks, and the internet for process monitoring and control applications. Attackers will gain the process information from the embedded devices and wireless networks through a variety of security attacks and modify the critical process parameters of the final product. It is essential to protect the embedded system with wireless networks from unauthorized access. The novelty of this proposed work is the implementation of a modified security algorithm along with the dedicated hardware key using embedded system which allows secure transmission and monitoring of process parameters through the internet. This proposed algorithm generates large key size of 1024-bit for asymmetric encryption and 256-bit key size for symmetric encryption. This encryption algorithm is implemented using raspberry pi which consists of the ARM Cortex processor. This proposed security algorithm monitors process data through the internet strengthens the data security by generating large key size along with usage of dedicated hardware key. The authorized only hold this hardware key to compile the security algorithm and to access the process data in encrypted and decrypted form. It achieves a data transfer rate of 300 Megabits per second and more than 95 percent efficiency. It ensures secure monitoring and transmission of sensitive process information through the internet. It also provides cost-effective solutions in protecting the process equipment and plant information from unauthorized access as well as safety to plant operators.