Description

data.txt contains text where every letter has been rotated by 13 positions (ROT13). Decoding it gives the password.

Overview

• ROT13 is a Caesar cipher with shift 13; it is its own inverse.
• tr 'A-Za-z' 'N-ZA-Mn-za-m' applies the rotation using the tr (translate) command.

Solution

cat data.txt | tr 'A-Za-z' 'N-ZA-Mn-za-m'

Password

JVNBBFSmZwKKOP0XbFXOoW8chDz5yVRv