VargasIsland
80 points Hard

You may want to solve my MountainMan challenge before solving this.

I am providing a python script that shows the Jpeg markers and data segments within a Jpeg file to get you started solving this challenge.

Good luck!

VargasIsland.zip
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Rating 4.86
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Discussion

your challenges are always hard and has no hints

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there are hints in the comments in the jpeg and challenges are designed to increase in difficulty ... this is an 80 point problem so it is a more difficult challenge, there are lots of easier ones.

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i got all the hints, but still, i got the 3rd comment block but how can i use it to decrypt ???

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des-ecb doesn't appear to be supported in the current version of openssl? And I can't seem to get the older version installed and working. In fact, trying to install version 1.1.1 has broken my original install as well

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Got the older openssl working and managed to solve it. This was very tricky! The tool I was using was trimming out the length from the hex without me realizing and threw off all my keys, sometimes reading the hex raw works out better I suppose. Very fun challenge!

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Congrats!

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Thanks for badass challenge! It took me a long time but I solved it after applying jpeg format knowledge acquired during research for "Nighthawk" challenge.

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Congrats! This is one of my favorite challenges.

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