FCSC 2020 - Keykoolol

A few weeks ago, I participated in the France CyberSecurity Challenge (or FCSC in short); a Jeopardy CTF organized by the National Cybersecurity Agency of France (ANSSI) to select the french team that will participate to the European Cybersecurity Challenge (ECSC) at the end of 2020.

Among the challenges proposed (crypto, reverse, pwn, web, forensic, hardware), I really liked doing one of the reverse track named keykoolol.

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NorthSec 2018 - Mars Analytica

In May 2018, the NorthSec conference and its on-site CTF competition were held. Once again the competition was awesome, the challenges were very diverse and the infrastructure was well configured. One of the reverse engineering challenges was a program called MarsAnalytica. This challenge remained unsolved at the end of the CTF. This binary was worth a lot of points and I think it was the right amount of points due to the time one would have to spend to solve it.
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