Heterogeneous Cryptographic Algorithm for Internet of Things Based Embedded Wireless Security

Abstract The technologies in monitoring and control of industrial process have changed due to the rapid growth of emerging technologies especially the most popular Internet of Things (IoT). The Internet is an essential part of day-to-day life and it is used to gather more information. The emerging trend in the field of industrial automation is the integration of embedded systems with wireless technologies which enables monitoring of process information through the internet. As the internet is the open environment, a lot of security issues and vulnerabilities arise to the industrial devices. The usage of internet in process monitoring enables attackers to monitor and change the process data. The unsecured industrial operations lead to failure of process equipment and safety issues to plant operators. The security mechanisms are essential in order to protect the embedded systems and wireless networks from unauthorized access. This proposed heterogeneous security algorithm includes symmetric, asymmetric and hash algorithms which strengthen the level of security. The novelty of the proposed work is it employs 128-bit key size for symmetric encryption, 1024-bit key size for asymmetric encryption along with the use of hash algorithm all together strengthens the security and it is tested in real time using embedded system with IoT. It takes less time for execution of data encryption and decryption. This proposed hybrid security algorithm is implemented and tested in an embedded system with wireless monitoring of process information through the internet. It ensures secure communication and monitoring of process data through the internet. The attacker cannot identify and modify the plant information transmitted across internet. This proposed work can be applied to industries dealing with sensitive process information.