Cybersecurity researcher · bug bounty · offensive research · pentest
I'm Arthur (a.k.a. Vozec), a cybersecurity researcher based in France.
My day-to-day is mostly:
- 🐛 Bug bounty on public and private programs.
- 🔬 Offensive research on real-world software. Recent published work: Jalios CMS research and SPIP pre-auth RCE.
- 🛡️ Pentesting (external, internal, web).
- 🚩 CTFs as a hobby: FCSC, leHACK, insomni'hack. I write up the interesting ones on vozec.fr/writeups.
I also publish articles on vozec.fr, ranging from broad cybersecurity topics to deeper dives in cryptography (RSA, AES, lattices, ECC).
| Tool | What it does |
|---|---|
| Feal-ALL | Python implementation of the three FEAL versions |
| AES-DFA | Differential fault analysis on AES-128 |
| AES-Square-Attack | Square attack on AES-128 |
| AES-Flipper | AES-CBC bit-flipping attack |
| AES-ECB-Padding-attack | ECB padding-oracle attack |
| AES-CBC-Padding-attack | CBC padding-oracle attack |
| RSA-Padding-Oracle | Bleichenbacher's attack on RSA PKCS1.5 |
| AES-Sage-128 | Classic AES-128 on top of Rijndael-GF (SageMath) |
| Cryptolib | Personal cryptography library |
| DLP-Solver | Multiple algorithms for the discrete-log problem |
| Facto4CTF | RSA factoring with several methods |
| Vigenere-Plaintext-Attack | Vigenère breaker with known plaintext |
| Tool | What it does |
|---|---|
| BrainDbg | Brainfuck debugger in Python |
| RevBrain | Automated crack resolution for CTF |
| HSPAL-Decompiler | Decompiler for the HSPAL esolang |
| Tool | What it does |
|---|---|
| CTFileScan-WEB | Web app gathering common file-analysis methods for CTF |
| CTFilesScan | Local CLI version of the above |
| Discord-CTFD-Parser | Auto-creates Discord rooms from a CTFD platform |
| Discord-Multi-Account-Detector | Reliability score for Discord accounts |
| CTFd-Tracker | Cheating detection on CTFD-based events |
| Ctfd-Account-Creator | Quick team registration on CTFD |
