Block cipher challenge

Level: CBC mode

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



Ciphertext (hexencoded), for easy copy-paste

242fe29caa16c696d7568ad7aff8e9f0bee25f04911fd38fe6aed4a0cfb0c0603e3ca0af0a5d4531cea60c7d5b673780d2f7a15844cc4d2f262d72add5f2499d

Ciphertext (hexencoded):

242fe29caa16c696d7568ad7aff8e9f0 bee25f04911fd38fe6aed4a0cfb0c060 3e3ca0af0a5d4531cea60c7d5b673780 d2f7a15844cc4d2f262d72add5f2499d

Plaintext (hexencoded):

242fe29caa16c696d7568ad7aff8e9f0 7b22757365726e616d65223a20226775 657374222c202269735f677565737422 3a20747275657d090909090909090909

Plaintext:

$/\xe2\x9c\xaa\x16\xc6\x96\xd7V\x8a\xd7\xaf\xf8\xe9\xf0 {"username": "gu est", "is_guest" : true}\t\t\t\t\t\t\t\t\t

Final plaintext

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