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Merged
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Dec 11, 2014
Merged

added pixelated #15

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f92c7bf
Create 090-pixelated.md
noobisnoob Dec 8, 2014
ea8b29a
Update 160-obfuscation-2.md
noobisnoob Dec 8, 2014
a4e309f
Update 150-ghoti.md
noobisnoob Dec 8, 2014
2b4b639
Update 080-easy-as-ctf-gets.md
noobisnoob Dec 8, 2014
9b785a7
Update 070-brutus.md
noobisnoob Dec 8, 2014
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Update 200-guessing-is-hard.md
noobisnoob Dec 8, 2014
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Update 090-pixelated.md
noobisnoob Dec 8, 2014
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2 changes: 2 additions & 0 deletions 070-brutus.md
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# 70 - Brutus

*Writeup by Jester*

## Problem

It appears the only thing you know about the flag is its MD5 hash f54f10fd6e38929084d505d0c2e9c997, and that the flag is formatted in this way: [number][adjective][color][animal] without the brackets.
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2 changes: 2 additions & 0 deletions 080-easy-as-ctf-gets.md
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# 80 - Easy As CTF Gets

*Writeup by Jester*

## Problem

What could this possibly mean?
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21 changes: 21 additions & 0 deletions 090-pixelated.md
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# 90 - Pixelated

*Writeup by Jester*

## Problem

<img src="http://i.imgur.com/LN4klWr.png"\> <img src="http://i.imgur.com/ubk2fLw.png"\>

## Hint

Did you know you can do [arithmetic with images](http://homepages.inf.ed.ac.uk/rbf/HIPR2/arthops.htm) too?

## Solution

This problem is quite simple. The hint gives us an extremely useful website that allows us to perform "arithmetic" on the images provided.

After converting the pngs to the needed format on the website, you can simply try it out until you get a QR code. (Upload the images on a website) After trying all of them, we find that the correct QR code is actually XOR. Afterwards, you can scan the QR code, which links you to the flag.

## Flag

pixelsmatterinQRs
2 changes: 2 additions & 0 deletions 150-ghoti.md
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# 150 - Ghoti

*Writeup by Jester*

## Problem

Haaaalppp I can't pronounce this word. What could this image mean?
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2 changes: 2 additions & 0 deletions 160-obfuscation-2.md
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# 160 - Obfuscation2

*Writeup by Jester*

## Problem

This jumbled mess has been left for you... [source](http://www.easyctf.com/problem_data/obfuscation/obfuscate.js)
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2 changes: 2 additions & 0 deletions 200-guessing-is-hard.md
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# 200 - Guessing is hard

*Writeup by MegaAbsol*

## Problem

We really love guessing games. Try and get the flag at python.easyctf.com:10663!
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