homepage ;

mainly reverse engineering/web security
& doujin music & BMS
ctf w/ IrisSec sometimes

articles
╔═▷ bpf in seccomp
╔═▷ css injection quick sheet
╔═▷ smt solvers and s-boxes

"notable" writeups
╔═▷ UIUCTF wasmcloud ($100 bounty)
╔═▷ author writeups

achievements in ctf
╔═▷ HackPack CTF 2021 1st
╔═▷ X-MAS CTF 2021 2nd
╔═▷ UIUCTF 2021 3rd
╔═▷ UIUCTF 2022 5th
╔═▷ LACTF 2023 3rd
╔═▷ UMDCTF 2023 4th
╔═▷ CryptoHack top 50 peak

mailto s ​at​ ryuumusu.me