Reading up on crypto
2 deep · digging since jul 23
- Pushing Collision Attacks on SHA-2 to 39 Steps
The paper reports the first collision attacks on 38-step SHA-256 and SHA-512, and a 39-step attack on SHA-512, achieving low memory and specific time complexities.
- Requests for Startups
Y Combinator’s Fall 2026 Request for Startups outlines areas they want founders to tackle, ranging from AI tutors and defense tech to offshore compute and trust infrastructure.