hxp CTF 2020: Hyper
I was teamed up to play hxp CTF as @blackb6a last week. The hxp team had come up with a collection of hard challenges. In particular, there are two series of crypto challenges with a total of five parts. I will be writing on the hyper challenge and some follow-up and unanswered questions regarding to hyperelliptic curves. โ ๐ข๐ณ๐ณ๐ถ๐ฐ๐ถ๐ฎ๐น ๐๐ผ๐๐ฟ๐ฐ๐ฒ๐ ๐๐๐ฎ๐๐ฒ๐ฑ ๐๐ต๐ฎ๐ ๐๐ต๐ถ๐ ๐ถ๐ ๐บ๐ถ๐๐น๐ฒ๐ฎ๐ฑ๐ถ๐ป๐ด Seriously. I knew nothing on hyperelliptic curves prior to the CTF....