Credentials

Description

We found a leak of a blackmarket website's login credentials. Can you find the password of the user osman and successfully decrypt it?

Solution

This challenge was very simple — it asked to search for the user osman in the user.txt file. After finding it at line 337, I tried searching for the same line in the password.txt file, which came out as:

ZJPB{e6g180g9f302g8d8gddg1i2174d0e212}

The first thing that came to mind was trying ROT decryption. After trying a couple of values, ROT23 turned out to be the right one to decrypt the flag.

Flag

WGMY{b6d180d9c302d8a8daad1f2174a0b212}