Block cipher challenge

Level: CTR mode

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



Ciphertext (hexencoded), for easy copy-paste

0e75c36de273cd10f6d7ea9d96ea969fcc7c8ee896b1f5968b347137d2634332102eb6ce060c389080281b8a24f6f4e50e4154156ab2fbadf5053f4b882ec464

Ciphertext (hexencoded):

0e75c36de273cd10f6d7ea9d96ea969f cc7c8ee896b1f5968b347137d2634332 102eb6ce060c389080281b8a24f6f4e5 0e4154156ab2fbadf5053f4b882ec464

Plaintext (hexencoded):

0e75c36de273cd10f6d7ea9d96ea969f 7b22757365726e616d65223a20226775 657374222c202269735f677565737422 3a20747275657d090909090909090909

Plaintext:

\x0eu\xc3m\xe2s\xcd\x10\xf6\xd7\xea\x9d\x96\xea\x96\x9f {"username": "gu est", "is_guest" : true}\t\t\t\t\t\t\t\t\t

Final plaintext

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