LadderLeak
Explore a comprehensive presentation on LadderLeak, delivered by Diego F. Aranha and Akira Takahashi at the Workshop on Attacks in Cryptography (WAC 2020). Delve into the intricacies of ECDSA and Schnorr signatures, examining the risks associated with biased or leaky randomness in cryptographic systems. Discover real-world examples of randomness failures and learn about contributions to the field. Investigate side-channel attacks in scalar multiplication, including cache-timing attacks on prime and binary curves. Analyze the problem of nonce leakage, exploring attacks on the Hidden Number Problem (HNP) and Bleichenbacher's attack. Gain insights into Fourier analysis-based approaches, collision search techniques, and the K-list sum algorithm. Examine unified time-memory-data tradeoffs and experimental results on full key recovery. Enhance your understanding of cryptographic vulnerabilities and potential countermeasures in this in-depth 46-minute talk.