ADVANCED SECURITY TECHNIQUES FOR CPS

This integration permits a more intelligent form of operation and monitoring in vital areas such as health care, grid control, and manufacturing as well as transportation and intrusion detection systems, block-chain based secure frameworks and industrial controls. However, the benefit it confers is a two-sided coin that results in substantial benefits in addition to numerous potential dangers the multiple layers which comprise a CPS can introduce in some way by providing an attack surface the dimensions of which has heretofore never been experienced by information security researchers, potential for more substantial threats like serious physical harm that could be caused by a malicious individual in some worst case scenario could be catastrophic, though the CPS security problem is not new we can trace CPS back to 1970. This paper investigates the state of the art in advanced security measures for CPS and is in part a result of a tutorial session given recently. It covers secure estimation in real time over networks, intrusion detection systems for CPS, blockchain based secure frame work, resilient control mechanisms, and AI and machine learning based intrusion detection systems and discuss other security mechanisms like the concept of digital twin and the potential of zero trust based architecture for secure data acquisition. It also deals with threats arising due to false data injection attack, Denial of Service attack, Replay attack and Advanced persistent threats for CPS and list down shortcomings in current security measures to establish our future work directions. Also, the current results are helpful in developing and deploying more effective security mechanisms in CPS with better methods that are emerging with the demand of industry. They are well documented methods that could be adapted to develop more efficient security frameworks. CPS can be prone to numerous obstacles in achieving perfect system security. These complications can be due to the shortage of resources such as computational speed, memory, or the availability of networks at remote locations; legacy systems integration, real time performance due to the constraints arising from scaling of systems; quantum-resistant cryptography, edge intelligence to manage heterogeneity, self-healing for Authors Ajay Kumar Assistant Professor Inderprastha Engineering College Ghaziabad. Harshita Assistant Professor Inderprastha Engineering College Ghaziabad. Sakshi Mogha Assistant Professor Inderprastha Engineering College Ghaziabad. Chandra Pushpanjali Patel Assistant Professor Inderprastha Engineering College Ghaziabad. redundancy; AI based autonomous mechanism to counter unknown threats - these can be part of a defense mechanism. To ensure protection of numerous systems being used widely by modern civilization for the future security requirements, while ensuring performance and reliability, CPS demands a multilayered adaptive security.