---
layout: default
permalink: /flareon4/challenge1/
title: Challenge 1 login.html
---
[Go Back to All Challenges](https://securedorg.github.io/flareon4)
# Challenge 1: login.html #
Here is the contents of **login.html**
```
FLARE On 2017
```
What gives away the answer is the variable name `rotFlag` and addition `c.charCodeAt(0) + 13`. Rotation or ROT is an older and simple technique for hiding readable strings. It's just a simple substitution cipher commonly known as ROT13. ROT13 means the characters will rotate 13 places.
A quick solution is python's codec library for using ROT13.
```
import codecs
print codecs.encode('PyvragFvqrYbtvafNerRnfl@syner-ba.pbz', 'rot_13')
```
It's also good to note that all of flare-on challenges end in **@flare-on.com** this makes it easy to help you guess the output.
[Next -> Challenge 2](https://securedorg.github.io/flareon4/challenge2)