Writeups

26 items

CTF and other challenges’ writeups across the years.

Competition:

Category:

File Format
intro
February 14, 2026 • Hackropole • #hardware #radio #bash #linux
Quinindrome
January 1, 2026 • Synacktiv winter challenge 2025 • #pwn #linux #x86/64
Dna
⭐⭐
June 19, 2025 • Smiley CTF 2025 • #reverse #VM
Enough
⭐⭐
June 17, 2025 • Smiley CTF 2025 • #crypto #python #PRNG
Veiled Xor
⭐
June 11, 2025 • Bi0s CTF 2025 • #crypto #GMP
Le Calme Avant La Tempest 🇫🇷
⭐
May 3, 2025 • FCSC 2025 • #hardware
Un Cercle Est Un Carre 🇫🇷
⭐⭐
May 2, 2025 • FCSC 2025 • #misc #algo
Problemeuh 🇫🇷
⭐⭐
May 1, 2025 • FCSC 2025 • #crypto
Babyfuscation
⭐
May 1, 2025 • FCSC 2025 • #reverse
Signal Sur Chat
⭐⭐
April 30, 2025 • FCSC 2025 • #hardware #radio
Binary Lullaby
⭐
April 30, 2025 • FCSC 2025 • #hardware
Cocorico
⭐
April 30, 2025 • FCSC 2025 • #crypto #symetric
Cryptobro En Detresse
⭐
April 30, 2025 • FCSC 2025 • #hardware #side channel
Grand Classic Hotel
⭐
April 30, 2025 • FCSC 2025 • #hardware
Il Etait Une Bergere
⭐
April 30, 2025 • FCSC 2025 • #misc
La Quete De L Anneau 🇫🇷
⭐
April 30, 2025 • FCSC 2025 • #crypto
Mechanical Display
⭐
April 30, 2025 • FCSC 2025 • #hardware #communication bus
Rsa Wtf
⭐
April 30, 2025 • FCSC 2025 • #crypto
Elgamal
⭐
July 11, 2024 • FCSC 2024 • #crypto #El Gamal
Puzzle Trouble
⭐
July 11, 2024 • FCSC 2024 • #misc
Tortuga 🇫🇷
⭐
July 11, 2024 • FCSC 2024 • #misc
Fftea
intro
July 11, 2024 • FCSC 2024 • #hardware #radio
Layer Cake
intro
July 11, 2024 • FCSC 2024 • #forensics #docker
Rien A Signaler
intro
July 11, 2024 • FCSC 2024 • #crypto #RSA
Strike
intro
July 11, 2024 • FCSC 2024 • #reverse #linux #x86/64
Very Cute Data
intro
July 11, 2024 • FCSC 2024 • #hardware #communication bus