Cybersecurity B.S. Student @ Purdue University
President of b01lers @ Purdue.
Active member of Taiwanese CTF Team TSJ. Part of Balsn.217@TSJ.tw
Specialize in Pwnable, Crypto, and all kind of miscellaneous challenges.
I enjoy researching cool tricks and quirks in various computing systems and languages, as well as optimizing thing with techniques and algorithms.
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b01lersCTF 2023 - Padlock
For the past year, b01lers has been a huge success in my opion, with our 2023 edition of b01lers CTF, more interesting challeges are solved by the curious individuals. We received a lot of feedback, and most of them are positive! I’m glad for hosting such a wholesome event for everyone :)
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ACSC 2023 Writeup
This year I participated in Asian Cyber Security Challenge and placed 38th place out of all participants. This documents the writeups for all of the challenges I solved. The writeup will be in chronological order ;) Challenge solved after the competition are marked as [*]
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HackTM 2023 - d-phi-enc
In CTF, there are many people who mistakenly encrypt p, q in RSA. But this time... Solves: 51 solves -
GoogleCTF 2022 - segfault labyrinth
Be careful! One wrong turn and the whole thing comes crashing down nc segfault-labyrinth.2022.ctfcompetition.com 1337 Solves: (189 pt/ 56 solves) -
TetCTF 2022 - Ezflag
We found an internal storage system exposed to the internet. By ambushing one of the employee, we got some files and the credentials of the system: "admin:admin". Unfortunately, our agent was poisoned and cannot continue hacking. Can you help us? Service: http://18.220.157.154:9090/ or Service: http://3.22.71.49:9080/ Author: @nyancat0131 Solves: 47(part1) / 20(part2) / 591 -
HITCONCTF - cclemon
Speak in 🍋 Author: david942j Solved: 24/286 -
HITCONCTF - baba is game
JIJI IS SHUT JIJI IS STOP TEXT HAS TEXT JIJI IS JIJI BABA IS YOU JIJI IS OPEN JIJI IS NOT YOU HEDGE IS STOP JIJI HAS JIJI TEXT IS NOT YOU nc 35.72.58.250 5566 Author: ddaa Solves: 16/286 -
BalsnCTF 2021 - dark knight
Category: Misc Author: 424275 Solves: 12 / 278 once upon the ime, there was a dark knight who kills every admin he met... nc darkknight.balsnctf.com 8084 -
ALLES!CTF 2021 - entrAPI
Category: Misc Difficulty: Medium Author: Flo Solves: 5 / 523 A very simple stegano tool that estimates the entropy of sections of a file by counting unique bytes in a range. Here's a snippet of the Dockerfile to get you started: COPY main.js index.html flag / RUN deno cache main.js EXPOSE 1024 CMD deno run -A main.js Happy guessing! :^)