Block cipher challenge

Level: CBC mode

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



Ciphertext (hexencoded), for easy copy-paste

37241830b1322ebac82d016879d07d793506239aa177b34da4b483a74ac9af52bdb56c4abaf8ef2417680c1c28e3e0cbe35c9edcf398784ed1b32349d79bd255

Ciphertext (hexencoded):

37241830b1322ebac82d016879d07d79 3506239aa177b34da4b483a74ac9af52 bdb56c4abaf8ef2417680c1c28e3e0cb e35c9edcf398784ed1b32349d79bd255

Plaintext (hexencoded):

37241830b1322ebac82d016879d07d79 7b22757365726e616d65223a20226775 657374222c202269735f677565737422 3a20747275657d090909090909090909

Plaintext:

7$\x180\xb12.\xba\xc8-\x01hy\xd0}y {"username": "gu est", "is_guest" : true}\t\t\t\t\t\t\t\t\t

Final plaintext

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