WxMCTF '23 Crypto 3 - Permutations

MGCI tried implementing their own version of the Diffie-Hellman Key Exchange, using their favourite group, permutations! Can you solve this discrete log problem and find the shared secret?

An issue was found with an unintended solution. If you have a correct looking flag which is incorrect, please ensure you are using the correct new files.

Files
  • main_njzMd2E.py
    • SHA256 checksum: 5286a148bb9334c850dcc3b9a84372987c61b336466e0d62eda3e679feb7014d
  • out_qCuM4xn.txt
    • SHA256 checksum: fea4ff5f9e9f0331262d4ed17dcd2ff62a40cf8bb702e12292c20b2b6dd61292
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