El Gamal Fait 2/2

Description

I’ve been told that in some cases, my signature service using ElGamal is even easier to attack. Show me how!

Files

docker-compose.yml
el-gamal-fait-2.py
1.10 KiB – 6a3efe12a51c61ebbc13e7203b3203c7efa2538ed104a69f7907d400ac8c1d19

Author

Challenge Instructions

First, download docker-compose.yml:
curl https://hackropole.fr/challenges/fcsc2024-crypto-el-gamal-fait-2/docker-compose.public.yml -o docker-compose.yml
Launch the challenge by executing in the same folder:
docker compose up
Then, in another console, access the challenge with Netcat:
nc localhost 4000

⚠️ Important: You must solve the challenge by interacting with the Docker container through the exposed network port. Any other way is not considered valid.

In case you encounter problems, please consult the FAQ.

Flag

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Writeups

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Date	Author	Language	Tags	Vote
2024-06-14	Z-nZzz	🇬🇧