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Crypto & Blockchain

The most popular blog posts about crypto & blockchain on Hacker News. 9 posts.

2012
2

SHA-3 to Be Announced

NIST is about to announce the new hash algorithm that will become SHA-3. This is the result of a six-year competition, and my own Skein is one of the five remaining finalists (out of an initial 64). It’s probably too late for me to affect the final decision, but I am hoping for “no award.” It’s not that the new hash…

4

When Will We See Collisions for SHA-1?

On a NIST-sponsored hash function mailing list, Jesse Walker (from Intel; also a member of the Skein team) did some back-of-the-envelope calculations to estimate how long it will be before we see a practical collision attack against SHA-1. I’m reprinting his analysis here, so it reaches a broader audience. According…