Ok @katrielalex is a tough guy. Can we rope in @spdevlin for another challenge?
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These problems will focus on some joint work I did with
@FiloSottile: https://events.ccc.de/congress/2017/Fahrplan/events/9021.html …. It's a really cool (in my opinion) exploit of a carry bug in Golang's P256 implementation. -
The first problem will be a simplified version of the attack: we'll implement a buggy ECC scalar multiplication routine, fuzz it offline, and send crafted queries to recover the private key from a static ECDH server.
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