Block cipher challenge

Level: CBC mode

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



Ciphertext (hexencoded), for easy copy-paste

3abc6513ca3d79f26ffab5c00c07633e7c2fcca9fca5671e2bcc954848e5f1a8018c301c09f1c01256fba1cfaea4b0410d64acc0ef8979546c20b371253ad233

Ciphertext (hexencoded):

3abc6513ca3d79f26ffab5c00c07633e 7c2fcca9fca5671e2bcc954848e5f1a8 018c301c09f1c01256fba1cfaea4b041 0d64acc0ef8979546c20b371253ad233

Plaintext (hexencoded):

3abc6513ca3d79f26ffab5c00c07633e 7b22757365726e616d65223a20226775 657374222c202269735f677565737422 3a20747275657d090909090909090909

Plaintext:

:\xbce\x13\xca=y\xf2o\xfa\xb5\xc0\x0c\x07c> {"username": "gu est", "is_guest" : true}\t\t\t\t\t\t\t\t\t

Final plaintext

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