Krypton Level 4 → Level 5

cd /krypton/krypton4

ls -la

file *

The README file is the challenge description.

We have krypton5 and HINT:

cat HINT

cat krypton5

So we are dealing with Vigenère encryption.

The found1 or found2 will help us to find the key:

cat found1

And paste that content in this website:

It will try to find out the key, and in this case it is frekey.

Lets use that key in cyberchef, with the encrypted string:

So this is the password for the next user, but without spaces.