Block cipher challenge

Level: CBC mode

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



Ciphertext (hexencoded), for easy copy-paste

e36fa4f93b2f4d78615889375158592bed5625247bba242bc3eedb1d01030c514ab571c876bdc40ac9e0ac21bfd932d06f86b9827e7f92349993e6f05a73d839

Ciphertext (hexencoded):

e36fa4f93b2f4d78615889375158592b ed5625247bba242bc3eedb1d01030c51 4ab571c876bdc40ac9e0ac21bfd932d0 6f86b9827e7f92349993e6f05a73d839

Plaintext (hexencoded):

e36fa4f93b2f4d78615889375158592b 7b22757365726e616d65223a20226775 657374222c202269735f677565737422 3a20747275657d090909090909090909

Plaintext:

\xe3o\xa4\xf9;/MxaX\x897QXY+ {"username": "gu est", "is_guest" : true}\t\t\t\t\t\t\t\t\t

Final plaintext

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