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Security of Safety Important I&C Systems
Abstract
One of the most challenging modern problems—security assessment and assurance for safety important I&C systems—is discussed. Interrelations and hierarchical structure of I&C systems attributes, including safety and security, are considered. Review of existing regulatory documents that covers various development and operation aspects of safety important I&C systems is presented. Such a review also addresses issues related to requirements for safety important I&C systems, including security requirements, depending on their underlying technology, as well as reveals the impact of the main features, including used technologies and development approaches. Main challenging problems and requirements in the area of security assurance for complex safety important I&C systems are outlined. A possible way to analyze the security vulnerabilities of safety important I&C system is considered; it is based on process-product approach, and it requires performance of assessments for products (components of I&C system at different life cycle stages) and all the processes within the product life cycle. A possible approach to assessment and assurance of safety important I&C systems security is discussed. Such an approach takes into account possible vulnerabilities of Field Programmable Gate Arrays (FPGA) technology and appropriate points of their insertion into the life cycle. An analysis of existing techniques for assurance of safety important I&C systems security is performed.
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