1. Secure Proactive Recovery – a Hardware Based Mission Assurance Scheme 6 th International Conference on Information Warfare and Security, 2011 Ruchika Mehresh 1 Shambhu J. Upadhyaya 1 Kevin Kwiat 2 [email_address] [email_address] [email_address] 1 Department of Computer Science and Engineering, State University of New York at Buffalo, NY, USA 2 Air Force Research Laboratory, Rome, NY, USA Research Supported in Part by ITT Grant No. 200821J and NSF Grant No. DUE-0802062

2. Outline Performance analysis Motivation Threat model System design Conclusion Structure

4. Outline Performance analysis Motivation Threat model System design Conclusion Structure

5. Threat Model

7. Outline Performance analysis Motivation Threat model System design Conclusion Structure

8. Coordinator Replica 1 Replica 2 Replica 3 Replica n Workload Workload Workload Workload Workload Replica 3 R R R R Periodic checkpoint Hardware Signature Periodic checkpoint Hardware Signature H C H C H C H C Periodic checkpoint Hardware Signature Periodic checkpoint Hardware Signature Periodic checkpoint Hardware Signature

9. Hardware Signature Generation System reg IDS

10. Outline Performance analysis Motivation Threat model System design Conclusion Structure

12. Results

13. Results Table 1: Execution Times (in hours) for the Scimark workloads across three cases Table : Execution times (in hours) for the Scimark workloads for the three cases FFT LU SOR Sparse Case 1 3421.09 222.69 13.6562 23.9479 Case 2 3477.46 226.36 13.8811 24.3426 Case 3 (M=10) 3824.63 249.08 15.2026 26.7313 Case 3 (M=25) 3593.39 233.83 13.8811 24.3426

14. Results

15. Results

16. Results Table : Approximate optimal checkpoint interval values and their corresponding workload execution times for LU (Case 3) at different values of M M=5 M=10 M=15 M=25 Optimal Checkpoint Interval (hours) 0.3 0.5 0.65 0.95 Execution Times(hours) 248.97 241.57 238.16 235.06

17. Outline Performance analysis Motivation Threat model System design Conclusion Structure