The Revenge of Shor

Description

After years of dreaming, it finally happened: we got our hands on a top-of-the-line quantum computer. Between two attempts to bend space-time (and mine quantum Bitcoin), we figured breaking RSA would be more fun.

Hackropole version of the challenge, compliant with the intended solution.

Files

docker-compose.yml
shor.py
1.51 KiB – 3fdb3b87d91378bc9c37d8a812bfef8169f7115be8f8630b827595e49e39b0c1

Author

Neige

Challenge Instructions

First, download docker-compose.yml:
curl https://hackropole.fr/challenges/fcsc2026-crypto-shor/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

You don't have JavaScript actived. No problem! You can check your flag like this: echo -n 'PUT_THE_FLAG_HERE' | sha256sum # possible output: 59090da5762ce17d4d894315153329e6c3e71aa3af4475dd5320f7a50a665b89

Writeups

There are no public solutions for this challenge yet, but you can submit yours after getting the flag.