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At the end of the day, the day ends.
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At the end of the day, the day ends.
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JustLikeChuu/README.md
Ethan Ng: CS @ SUTD, Cybersecurity x AI. Interning at DSO National Labs on AI-assisted fuzzing, working towards penetration testing and red teaming.

portfolio  ·  linkedin  ·  email

> whoami

  • 🎓 CS & Design @ SUTD (Year 3), specialising in Cybersecurity and AI
    Diploma in Cybersecurity & Digital Forensics → 2 years of National Service → SUTD
  • 🛡️ Pentest / red team bound
    HackTheBox, TryHackMe and OSCP prep are on hold until my DSO internship wraps (Jan 2027)
  • ⚙️ Systems first: shells, servers, protocols, crypto. I build things so I know exactly where they break.

> cat ~/now.log

+ [2026.09 → 2027.01]  Intern @ DSO National Laboratories: AI-assisted fuzzing for software testing
+ [building]           tofuFTP (DH + key pinning next), tetriSH (unicast fix for real Wi-Fi)
- [on hold]            HackTheBox / TryHackMe / OSCP prep, until after DSO
  [queued]             web app pentesting, Active Directory home lab, LLM prompt-injection harness

> ls ~/projects --sort=relevance

Project What it is Stack
🧱 tetriSH Server-authoritative multiplayer Tetris Battle Royale. Single-threaded poll() server, input-only clients, encrypted session layer (RSA-wrapped AES), and a standalone logging daemon over a Unix socket with SIGHUP log rotation. C OpenSSL sockets
🔐 tofuFTP Secure file transfer protocol, redesigned from the course's static-RSA scheme: encrypt-then-MAC (AES + HMAC-SHA256), trust-on-first-use key pinning, ephemeral Diffie-Hellman. In progress. C OpenSSL
🐚 daemonSH Unix shell with a real fork → exec → wait loop, daemon process management, environment variables and .rc config. C
🧮 applied-cryptography-labs Seven labs from classical ciphers to RSA. Highlight: recovering an image from ECB-mode ciphertext alone, no key needed. Python
🤖 RedTeamAutomation Diploma FYP. Nine scripts automating OWASP Top 10 checks, with RPA, PDF reports, email alerts and a Flask GUI. Pitch video Python Flask Kali

Older builds (hardware + design projects)

  • BEAR-ly Awake: plush companion that tracks sleep metrics (heart rate, temperature, restlessness) on ESP32 sensors, with a Streamlit dashboard. ESP32 C++ Python · slides
  • Sprout Sprinters: AR wellness app where a smart fidget keychain's movement grows a virtual garden, synced via Firebase. Unity (C#) Arduino Firebase · demo

> history | grep -i work

2026.09 – 2027.01   DSO National Laboratories   Intern, AI-assisted fuzzing
2021.09 – 2022.07   Kaspersky Singapore         Presales Engineer Intern (extended)
                                                KICS + MDR for B2B/B2C clients in SG & MY

> ./activity --live

GitHub contributions in the last 12 months, current and longest streak, and language breakdown. Refreshed daily.

> which tools

build
Stack

break
Kali Linux John the Ripper AddressSanitizer libFuzzer OpenSSL Hack The Box TryHackMe Burp Suite Wireshark Metasploit

Certs: AWS Academy Cloud Foundations · RPA Developer Foundation

> cat ~/.offline

audio:     IEMs (Xenns Top Pro), K-pop, electronic
keyboards: TKL enjoyer, Holy Pandas, forever eyeing a Glacier80
also:      cars, Gundams, coffee somewhere quiet

> ping ethan

  • Open to professional inquiries: short-term roles between early July and end August, or full-time employment.
  • Reach me by email or LinkedIn.
  • Not taking on community projects or collabs right now (internship + backlog).

profile views

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  1. tetriSH tetriSH Public

    Server-authoritative multiplayer Tetris in C — solo fork of a joint course project, own protocol and lobby system.

    C

  2. 50005-computer-system-engineering/2026-corestack-50005-htttpbets 50005-computer-system-engineering/2026-corestack-50005-htttpbets Public

    CoreStack Project for Team HTTTPBets (C1C7)

    C

  3. tofuFTP tofuFTP Public

    Secure file transfer, redesigned — TOFU pubkey pinning, ephemeral DH, encrypt-then-MAC.

    HTML

  4. daemonSH daemonSH Public

    A Unix shell in C — fork/exec/wait loop, daemon process management, env vars, .rc config.

    C

  5. applied-cryptography-labs applied-cryptography-labs Public

    Classical ciphers to RSA: 7 crypto labs, incl. an ECB mode structure-leak demo.

    Python

  6. Frankwotfurters/RedTeamAutomation Frankwotfurters/RedTeamAutomation Public

    Python 5