Well, this is not a real challenge yet, just a quick intro. Some would say sanity check.


The provided image contained a QR Code that was mirrored. Ironically, it is still readable by a number of code scanners that are able to detect the code is mirrored. I simply used my iPhone’s camera to scan the code and produce the flag.

An alternative, and quick validation option is to use an image editor to flip the image horizontally. This can be done on the command line with ImageMagick

# use `magick convert` instead of `convert` with current versions of ImageMagick
$ convert -flop first_egg.png egg_flop.png

The accepted flag was, he2021{f1rst_0n3!}.



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