Jakarta
50 points Medium

This challenge combines forensics, crypto and programming. A 4096 bit RSA key is used to encrypt the flag and both the encrypted key and the encrypted flag are hidden inside the jpeg. Python scripts are also provided to help decrypt the RSA key which is xor'd with bytes from the jpeg. These same Python scripts can be used as part of solving my 100 point Scope challenge. Good Luck! You may want to solve my MountainMan challenge first if you are having difficulty finding the key and flag hidden in the jpeg.

Jakarta.jpg
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Discussion

i get trolled, haha nice one, rot1 is lots of fun!

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Can you send me a message on discord so we can discuss?

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Here after completing MountainMan, can i get a hint to begin? @kcbowhunter

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Read through the comment blocks and find the story that outlines the solution

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Does the Jakarta.pem.xor should be bytes between ffd9 markers?

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Yes... you can generate your own 4096 bit RSA key to check the file sizes

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Nice photo! and challenge too ;)

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Thanks!

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