A pretty simple crypto challenge, but the technique is applicable to more complex problems.
The smart home system has the function of remote monitoring of what is happening in the home and every few minutes sends pictures of the surveillance cameras to the owner of the house. You successfully intercepted the network traffic of this system, however, its creators took care of the security of their users data and encrypted the pictures. Decrypt the provided image and you will find the flag.
Welcome to Vertinet.
This problem follows the same specifications as the previous Verticode problem, except that you have to solve many of them by developing a client to communicate with the server available at problems1.2016q1.sctf.io:50000. Good luck.
This was a nice little challenge from sCTF 2016. I’m trying to work on more tricky stuff, but this one looked like fun and I couldn’t resist.
Welcome to Verticode, the new method of translating text into vertical codes.
Due to work commitments, I didn’t get to spend too much time on this CTF which was a shame because they put out some nice challenges. Here are the ones I did get to have a crack at: