Block cipher challenge

Level: CTR mode

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



Ciphertext (hexencoded), for easy copy-paste

ee9b699600027ecd831881c79568eddcc3c544760bffbaed85f179a706c85d3b13b89f055eea6c08d6512ec194b7026b4b5e88d510b364c2f564efee10cb9a6f

Ciphertext (hexencoded):

ee9b699600027ecd831881c79568eddc c3c544760bffbaed85f179a706c85d3b 13b89f055eea6c08d6512ec194b7026b 4b5e88d510b364c2f564efee10cb9a6f

Plaintext (hexencoded):

ee9b699600027ecd831881c79568eddc 7b22757365726e616d65223a20226775 657374222c202269735f677565737422 3a20747275657d090909090909090909

Plaintext:

\xee\x9bi\x96\x00\x02~\xcd\x83\x18\x81\xc7\x95h\xed\xdc {"username": "gu est", "is_guest" : true}\t\t\t\t\t\t\t\t\t

Final plaintext

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