C:\Users\achn30\Desktop>hobby_exploit.py
-------------------------------------------------
|       Welcome to Super Secure Auth Engine     |
-------------------------------------------------

1) Register
2) Login check
3) Show my secret

Enjoy ;)

1
Enter username:
 admin

Your key for login is:
4147466b62576c7503812bbd45e23c059a0eab18e936b7ed


C:\Users\achn30\Desktop>nc asis-ctf.ir 12439 -v
DNS fwd/rev mismatch: asis-ctf.ir != mail.asis.io
asis-ctf.ir [87.107.124.12] 12439 (?) open
-------------------------------------------------
|       Welcome to Super Secure Auth Engine     |
-------------------------------------------------

1) Register
2) Login check
3) Show my secret

Enjoy ;)
3
Enter key: 4147466b62576c7503812bbd45e23c059a0eab18e936b7ed
The flag is: ASIS_65cc76f02093977bfd7629086e813666