[Pragyan CTF] Interstellar



Forensics 150 pts

Dr. Cooper, on another one of his endless journeys encounter a mysterious planet . However when he tried to land on it, the ship gave way and he was left stranded on the planet . Desperate for help, he relays a message to the mothership containing the details of the people with him . Their HyperPhotonic transmission is 10 times the speed of light, so there is no delay in the message . However, a few photons and magnetic particles interefered with the transmission, causing it to become as shown in the picture . Can you help the scientists on the mothership get back the original image?


We are given with a photo, I opened it in Photoshop and saw that parts of it are transparent.


I grabbed Python and removed the Alpha layer from the image. The Alpha layer controls pixels’ transparency.

We got the result with the flag:


The flag was pragyanctf{Cooper_Brand}


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