# HKCERT CTF 2025 Quals

CTFTime: [https://ctftime.org/event/2862](<https://ctftime.org/event/2862>)

Participated as a member of [Redbud](<https://ctftime.org/team/20555>)

Solved challenges that I involved in:

- [cruel\_rsa](<https://jia.je/ctf-writeups/2025-12-19-hkcert-ctf-2025-quals/cruel-rsa.html>)
- [easyJail](<https://jia.je/ctf-writeups/2025-12-19-hkcert-ctf-2025-quals/easyJail.html>)
- [EC Fun](<https://jia.je/ctf-writeups/2025-12-19-hkcert-ctf-2025-quals/ec-fun.html>)
- [LWECC](<https://jia.je/ctf-writeups/2025-12-19-hkcert-ctf-2025-quals/lwecc.html>)
- [comcomplexx](<https://jia.je/ctf-writeups/2025-12-19-hkcert-ctf-2025-quals/comcomplexx.html>)
- [POC](<https://jia.je/ctf-writeups/2025-12-19-hkcert-ctf-2025-quals/poc.html>)