basic-mod1

Challenge

We found this weird message being passed around on the servers, we think we have a working decrpytion scheme. Download the message here. Take each number mod 37 and map it to the following character set: 0-25 is the alphabet (uppercase), 26-35 are the decimal digits, and 36 is an underscore. Wrap your decrypted message in the picoCTF flag format (i.e. picoCTF{decrypted_message})

Solution

Run the solution script.py, which directly applies the operations as per the challenge description.

Flag

picoCTF{R0UND_N_R0UND_79C18FB3}