L14: Cyber-Physical Systems

cyber-physical systems

Cyber-Physical system

Integrated systems where computational elements and physical processes interact closely

CPS security challenges

• Real-time constraints

• Physical impact

• Embedded system vulnerabilities

• Complexity in integration

• Increased attack surface

• Monitoring and Coordination

threat modeling

Identify attack surfaces in cyber and physical domains

risk assessment

Evaluate the likelihood and impact of attacks

STRIDE

Spoofing

Tampering

Information disclosure

Denial of Service

Escalation of Privilege

How to apply STRIDE

1. model the system

2. apply STRIDE to each element

role of cryptography in CPS

• Ensure secure communication between components of a CPS

• Protect data integrity and confidentiality in real-time systems

challenges of integrating cryptography into CPS

• Balance robust encryption with real-time performance demands

• Manage keys and nonces in dynamic, distributed systems