the flag is outside of the pic, try to find it.
another hint: dimensions, dimensions, everything is in dimensions.
1 month ago
somehow i cant get not broken jpeg file after editing hex using xxd. using hex editor is much easier and faster to solve this https://hexed.it/
try - ff c0 00 11 08 11 11 07 E0
3 months ago
learned lots of stuff
6 months ago
thx for the challenge
11 months ago
amazing, learned much about jpg
1 year ago
dimension of an image are should be the same + hexeditor and rapid table
If you found Mercedes pic then it's not correct way of your thinking ;)
4 months ago
wait, what? how do u pull that sort of magic?
Tips: The flag is 'outside' the pic, but it still part of the file. Think about dimensions.
I suggest use CyberChef and HexEd
This link will help a lot: blog.cyberhacktics.com/hiding-information-by-changing-an-images-height/
7 months ago
im comaritively new to cyberchef, how do u "check" images with that?
3 years ago
an article that can help: https://www.quora.com/How-do-I-extract-width-and-height-data-from-an-Exif-JPG-hex-format-in-C++
Sooo cool! Learn a lot about jpeg.
I had to fight my way there.
I don't think this should be in the easy section though
Any hint? several people (me included) seem stuck. I have read quite a bit about the jpeg specification, found something about blocks, but nothing helped so far.
2 years ago
Need to read more. Specifically about how does JPEG stores its dimensions.
This challenge really pissed me off, so i gave up on this challenge and after a month i thought let's give it one more try then after a few searchs on how hide data in image dimensions i found this blog which was really helpfully, and finally i solved this problem. (Also used hexed.it website)