1. Security as a New Dimension in Embedded System Design Presented by : Vivek Srikantan Authors: Paul Kocher Ruby Lee Gary McGraw Anand Raghunathan Srivaths Ravi

2. Embedded Systems Design Metrics Performance Power Cost Size And SECURITY 2

3. Factors affecting the security implementation in Embedded Systems Resource Constraint Increasing range of attack techniques Processing capabilities of the embedded systems Power consumption Flexible architecture 3

4. Security Requirements Varies depending on whose perspective is considered Ex: Cell Phone –Manufacturer –Service provider –Content provider –End user 4

5. Security Mechanisms Symmetric Ciphers Secure Hash Algorithms Asymmetric Algorithms 5

6. Security Mechanisms Secure communication protocols Digital Certificates Digital Rights Management 6

7. Types of Security Attacks Software Attacks Physical and Side-channel Attacks 7

8. Software Attacks Three Factors or Trinity of Trouble  Complexity  Extensibility  Connectivity 8

9. Securing against software attacks 9

10. Physical and Side Channel Attacks Invasive Attacks Non-invasive Attacks 10

11. Invasive Attacks Physical Attacks  De-packaging  Layout reconstruction  Micro probing or e-beam microscopy 11

12. Non-Invasive Attacks Timing Analysis Power Analysis –Simple Power Analysis –Differential Power Analysis 12

13. Architectures for Security Security Processing Architectures Attack – Resistant Architectures 13

14. Security Processing Architectures Hardware only approach - Cost Effective Software only Approach - Processing Gap - Battery Gap Hybrid Approach 14

15. Attack-Resistant Architectures Strong process isolation Sealed memory Platform attestation Secure path to the user 15

16. Conclusion Security is currently specificed in a vague manner Time-to-market pressures Constrained resources Trade-offs 16