 Название: Safe And Secure Cyber-physical Systems And Internet-of-things Systems
Автор: Marilyn Wolf, Dimitrios Serpanos
Издательство: Springer
Год: 2020
Язык: английский
Формат: pdf (true), epub
Размер: 10.1 MB
This book provides the first comprehensive view of safe and secure CPS and IoT systems. The authors address in a unified manner both safety (physical safety of operating equipment and devices) and computer security (correct and sound information), which are traditionally separate topics, practiced by very different people.
This book is motivated by the realization that cyber-physical and Internet-of-Things systems have pushed engineers and computer systems designers into new, uncharted territory. The combination of physical plants with complex computer systems opens up new concerns and threats that are more than the sum of traditional safety engineering and computer security. Safety and security must be treated as a unified problem with a coherent set of approaches to solve these new challenges.
Safety and security are both important, established, and very distinct engineering disciplines. Each discipline has developed its own methodologies and tools based on a set of goals. However, we can no longer treat these two disciplines as separate. The introduction of real-time embedded computing systems that control physical objects means that physical safety and computer security must be treated as a single discipline; the design of cyber-physical (CPS) and Internet-of-Things (IoT) systems must be based on this unitary goal of safe and secure systems.
The traditional definitions of these fields can be briefly summarized:
- Physical safety is the result of the absence or minimization of hazards that may harm life or property.
- Howard’s early analysis of Internet security defines computer security as “preventing attackers from achieving objectives through unauthorized access or unauthorized use of computers and networks.”
In the modern world, these two goals cannot be cleanly separated. The impact of computer security on safety is easy to see—attackers gain unauthorized access to a cyber-physical system and command it to do bad things. However, safety engineering also has an important influence on computer security practices that heavily rely on updates to fix newly found threats. Physical systems cannot be stopped arbitrarily—an airplane cannot be stopped mid-flight for a software update. Even a planned shutdown of a physical plant can take hours given the physical constraints on the system’s operation.
Cyber-physical attacks differ from cyber attacks in that they directly threaten physical systems: infrastructure, civil structures, and people. Cyber-physical attacks can kill people and cause damage to physical plants that can take months to repair.
Contnts:
1. The Safety and Security Landscape
2. Safety and Security Design Processes
3. Threats and Threat Analysis
4. Architectures
5. Security Testing and Run-Time Monitoring
6. False Data Injection Attacks
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