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Intro
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Classroom Contents
Security of Hedged Fiat-Shamir Signatures under Fault Attacks
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- 1 Intro
- 2 This Talk in a Nutshell...
- 3 Signature from Canonical ID Protocol
- 4 Sensitivity of Per-signature Randomness
- 5 Randomness Failure in Practice
- 6 Popular Solution: Deterministic Randomness Generation
- 7 Deterministic FS is Vulnerable to Faults!
- 8 Fault Adversary Type : Special Soundness Attack
- 9 Fault Adversary Type It: Large Randomness Bias Attack
- 10 Better Countermeasure? - Randomness Hedging
- 11 Contributions
- 12 Approach
- 13 Modeling Fault Attackers
- 14 Security Proof Overview
- 15 Overview of Our Results
- 16 Negative Results
- 17 XEDSA and Picnic
- 18 Conclusion
