Curveball

The name of the challenge is the name of the vulnerability CVE-2020-0601 on the crypto32.dll utility on the Microsoft Windows operating system. This vulnerability only targets ECC, and that an adversary can specify their own generator, private key and curve used, as Windows allows for this specifying arbitrary curve behavior. The same idea applies for this challenge. From the source code of the challenge, 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 def search_trusted(self, Q): for host, cert in self....

December 9, 2022 · 3 min · qvinhprolol