Abstract
Information technology (IT) security has become a major concern due to the growing demand for information and massive development of client/server applications for various types of applications running on modern IT infrastructure. How has security been taken into account and which paradigms are necessary to minimize security issues while increasing efficiency, reducing the influence on transmissions, ensuring protocol independency and achieving substantial performance? We have found cryptography to be an absolute security mechanism for client/server architectures, and in this study, a new security design was developed with the MODBUS protocol, which is considered to offer phenomenal performance for future development and enhancement of real IT infrastructure. This study is also considered to be a complete development because security is tested in almost all ways of MODBUS communication. The computed measurements are evaluated to validate the overall development, and the results indicate a substantial improvement in security that is differentiated from conventional methods.
Highlights
The MODBUS protocol is part of the supervisory control and data acquisition (SCADA) system, and it is the most commonly used protocol in industrial systems, including the oil and gas industries and power industries [1,2,3,4]
Serial protocol, protocol messages are transmitted between the main controller and the sub-controller and/or vice versa by employing remote terminal unit (RTU) controller modes over the serial lines
An assessment of the results can be used to conclude an improvement was made for the MODBUS protocol communication, and the proposed work is significant in terms of future potential for development as well as for other SCADA protocols, such as Distributed network protocol 3 (DNP3), Fieldbus, Profibus and International Electrotechnical Commission (IEC) 60870-5-104
Summary
The MODBUS protocol is part of the supervisory control and data acquisition (SCADA) system, and it is the most commonly used protocol in industrial systems, including the oil and gas industries and power industries [1,2,3,4]. Cryptography has been considered to provide the most accurate method to improve security in traditional and in real-time networks [25,29,30,31,35,36,37,38,39,40] These security schemes have several advantages relative to other well known security approaches, including Secure Sockets Layer/Transport Layer Security (SSL/TLS), Internet Protocol Security (IPSec), Secure Shell (SHH), security patterns and others. A cryptography mechanism is used as an inclusive security solution(s) and is deployed in the MODBUS message protocol before the transmission is sent over open protocols (such as TCP/IP) or other networks.
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