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SCADA systems are used in industries to perform control and monitoring of industrial processes in real-time. The advent of the Internet of Things (IoT), and the Industrial IoT (IIoT) in particular, has brought new disruptive technology that has the potential to drive the industrial digitization agenda well beyond the capabilities demonstrated by conventional SCADA systems. Industries, particularly manufacturing industries and utilities keep thriving to be competitive and the adoption of new technologies in the form of IIoT is set to improve efficiency and productivity through enhanced real-time data analytics and production availability. This paper examines the opportunities and challenges presented by integrating IIoT into existing SCADA systems. Potential solutions to the challenges are presented together with future research outlooks that have a bearing on the SCADA/IIoT integration efforts. [ABSTRACT FROM AUTHOR]

In recent days, cryptographic algorithm hardware is the need of IoT devices. However, limited resources demand an efficient approach towards designing the said cryptographic algorithm hardware. This paper introduces the PUF (Physical Unclonable Function) based approach to design the key generator used in cryptographic algorithm hardware to minimize the area and power consumption. A customizable key generation unit has been introduced in the form of a Standard Synchronization Unit (SSU) to match the desired key size requirements. The results were generated with PUF based designs from literature and compared with the proposed PDL (Programmable Delay Logic) PUF. All parameters considered, a proposed PDL PUF key generator is an efficient option that can be integrated with an Advanced Encryption System (AES) as the key generator. The modified AES design result was compared with the literature's results on the Xilinx Virtex XC7VX690T platform. The modified AES is an efficient solution with 12.10% less area consumption and a 44.51% increase in throughput. [ABSTRACT FROM AUTHOR]