Block cipher challenge

Level: CTR mode

Sorry, you're not an admin (need is_admin: true)



Ciphertext (hexencoded), for easy copy-paste

11beeacb7f935c95494549ad89f437f694e67d9fd66f3d94a8b131dc8a3f3cb15c0e7c0bf6e85237460ad35305c0abcf8c50fe352a0da5759de6180248802c31

Ciphertext (hexencoded):

11beeacb7f935c95494549ad89f437f6 94e67d9fd66f3d94a8b131dc8a3f3cb1 5c0e7c0bf6e85237460ad35305c0abcf 8c50fe352a0da5759de6180248802c31

Plaintext (hexencoded):

11beeacb7f935c95494549ad89f437f6 7b22757365726e616d65223a20226775 657374222c202269735f677565737422 3a20747275657d090909090909090909

Plaintext:

\x11\xbe\xea\xcb\x7f\x93\\\x95IEI\xad\x89\xf47\xf6 {"username": "gu est", "is_guest" : true}\t\t\t\t\t\t\t\t\t

Final plaintext

{"username": "guest", "is_guest": true}