2021.06.04Blog on CTFs

Challenge archive: zh3r0 CTF V2 2021 - twist_and_shout

zh3r0 CTF 2021 - Cryptography.

Section
Blog on CTFs
Event began

By deuterium.

Original description

Wise men once said, “Well, shake it up, baby, now Twist and shout come on and work it on out” I obliged, now the flag is as twisted as my sense of humour

Read this challenge as plain text or JSON.

Files

Use all 624 lines in output.txt with the original source. The Untwist Me practice variant has its own output and flag.

This fixed output was generated for the post with the unchanged original program and event flag. It is not a recording from the competition.

Try the local practice variant. Its flag check is separate from this event challenge.

Download

Sh
mkdir -p zh3r0-2021-twist-and-shout
cd zh3r0-2021-twist-and-shout
curl --fail --location --output challenge.txt \
  "https://deut-erium.github.io/challenges/zh3r0-2021/twist-and-shout/challenge.txt"
curl --fail --location --output challenge.json \
  "https://deut-erium.github.io/challenges/zh3r0-2021/twist-and-shout/challenge.json"
curl --fail --location --output challenge.py \
  "https://deut-erium.github.io/assets/challenges/zh3r0-2021-twist-and-shout/challenge.py"
curl --fail --location --output output.txt \
  "https://deut-erium.github.io/assets/challenges/zh3r0-2021-twist-and-shout/output.txt"

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Sources and solutions (spoilers)

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