El Gamal Fait 1/2

Description

I was told that you could use RSA to sign messages instead of encrypting them. I tried to do the same with ElGamal. Can you check whether what I’ve done is secure?

Files

docker-compose.yml
el-gamal-fait-1.py
1.06 KiB – cec61d1ae0f8ef555c92d79891651a768a05ae0fad2292f8c38d8d0fca6e09af

Author

Challenge Instructions

First, download docker-compose.yml:
curl https://hackropole.fr/challenges/fcsc2024-crypto-el-gamal-fait-1/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
2024-05-28	celi0n	🇬🇧
2024-07-23	StroppaFR	🇬🇧