Reading up on SHA-256
2 deep · digging since jan 25
- 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.
- Show HN: Subth.ink – write something and see how many others wrote the same
Subth.ink lets users anonymously submit text and see how many others wrote the same, using salted SHA256 hashes without storing original text.