5 years ago
Self-taught Belgian bloke cracks crypto conundrum that was supposed to be uncrackable until 2034
A cryptographic puzzle proposed two decades ago that involves roughly 80 trillion squarings has been cracked much earlier than expected – in just three and a half years. We say cryptographic because it involves a verifiable delay function [PDF], a moderately hard cryptographic function. The conundrum was set by Ronald Rivest in 1999, the R in RSA and a computer science professor at MIT's Computer Science and Artificial Intelligence Laboratory (MIT CSAIL). Here's how he described the problem:
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https://www.theregister.co.uk
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