Tags: cryptography
Rating:
## Task
> There have been some encrypted documents being passed around on the Ghost Town forum. When asked for the password, someone just posted a link to some web color template tool. We don't know what to make of this. Do you?
## Solution
The link provided: https://ghosttown.deadface.io/t/chickens-cant-fly-but-these-ones-do-a-lot/128
For this challenge, we have to find and decrypt a key to unlock the ZIP file provided.
The ZIP file contains a JSON file requires a key to unlock
In the forum thread, the following image is provided as a clue:
If we read the hex value of the color of each squares (I personally used this online tool: https://imagecolorpicker.com/en)
From left to right:
#476c40
#353548
#237524
#332474
#4f6e33
#536d40
#35680a
Converting those hex values to ASCII gives: `Gl@55H#u$3$tOn3Sm@5h`. Entering the code unlocks the JSON file, which contains flight log information.
At the last line (513) we can find the flag:
`{"flag": "flag{D3@dF@c3Rulz!}"}`
Thank you!