---
# System prepended metadata

title: 'picoCTF: Mod 26, 13'
tags: [picoCTF]

---

## How ROT13 Works
![](https://hackmd.io/_uploads/SkVyAw3jn.png)
(image from https://zh.wikipedia.org/zh-tw/ROT13)
## Online Decoder
https://rot13.com/
## Writeup
### Mod 26
![](https://hackmd.io/_uploads/HyQQCv3s2.png)
### 13
![](https://hackmd.io/_uploads/rJ5V6y0o3.png)

