If you are looking for a similar challenge from that timeframe, here are the most relevant matches:
If this is for a specific CTF or homework assignment, check these common repositories: Download code black 2021 txt
: If this is a retired machine or challenge, the official write-ups are usually available to members on the Hack The Box site . If you are looking for a similar challenge
: Search the CTFtime archive for "Black" or "Code Black" filtered by the year 2021. A detailed write-up and the underlying code logic
: This was a notable cryptography/pwn challenge. A detailed write-up and the underlying code logic (Python) can be found on the Black Bauhinia site .
: If "Code Black" refers to the Python formatting tool, the 2021 versions (and the current stable release) are available for installation via PyPI . How to locate the file