---
# System prepended metadata

title: substitution2-100pt
tags: [picoCTF, 從零開始的 picoCTF, Cryptography, picoCTF2022]

---

# substitution2-100pt
[題目在這](https://play.picoctf.org/practice/challenge/309?category=2&originalEvent=70&page=1)
## 題意

![](https://i.imgur.com/5zy09i6.png)

## 解題思路
就把 英文的部分改成上面的英文

![](https://i.imgur.com/RHzBh4n.png)



## 困難之處
nope


Date : 2023/04/18 
###### tags: `picoCTF2022` `Cryptography` [`從零開始的 picoCTF`](https://hackmd.io/-KQeDuzrQMOcFNhwU_5eKA?both=) `picoCTF` 