My CTF team at Auvergn'hack was fabulous. We had awesome discussions about Java, Python, security in general, but also Saint Nectaire and French pastry.
Thanks to my team mates, and again thanks so much for the Saint Nectaire.
Write-up for the Crypto challenge: https://cryptax.github.io/auvergn2026-crypto/
Auvergn'hack 2026: Crypto challenge
Auvergn’hack 2026 CTF: Crypto - Saki There was a crypto challenge at Auvergn’hack. I can’t remember exactly the title (I think it was “Saki” or something). I did not preserve the description either, but the only important files that were provided were: an encrypted message (message.txt): 1 {"h": "g1oatFTHSYsUH377iZQSuesUM/t+pFXRrwCrNW8v8Lw=", "n": "WQq7B4XEueM=", "m": "2gFQlO5+YZFnqaar7QEGpu3/f/2WdbJEWPnVjNuNs2dXyHUi7/8="} a verification file (v.txt), with a single word: Monkey a Python script (script.py) to encrypt or decrypt messages Goal: we need to decrypt message.


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