Challenge: ez-x0r

Content of flag.enc: 
BRQDER1VHDkeVhQ5BRQfFhIJGw==

From Base64:
.....U.9.V.9.....   .

XOR Bruteforce:
Key = 66: crew{3z_x0r_crypto}


NOTE: I did this in Cyberchef.

Original writeup (https://github.com/ninchy0/CTF-Writeups/tree/main/CrewCTF2022/Crypto/ez-X0r).