Beginner picoMini 2022 Writeup

📰 Medium · Cybersecurity

Learn how to solve the Beginner picoMini 2022 challenges, a set of simple general skills challenges for beginners in cybersecurity.

beginner Published 21 Jun 2026

Action Steps

Download the challenge files, including code.py and codebook.txt
Run the code.py file to print out the flag
Analyze the code to understand how it works, including how it uses the codebook.txt file to build a password and decode the flag
Apply the same principles to other challenges in the picoMini 2022 set
Practice and review the material to solidify your understanding of the concepts

Who Needs to Know This

This micro-lesson is useful for junior cybersecurity team members or individuals looking to start their career in cybersecurity, as it provides a starting point for learning and practicing basic skills.

Key Insight

💡 The Beginner picoMini 2022 challenges provide a good starting point for beginners in cybersecurity, covering basic skills such as code analysis and decryption.

Key Takeaways

Learn how to solve the Beginner picoMini 2022 challenges, a set of simple general skills challenges for beginners in cybersecurity.

Full Article

Title: Beginner picoMini 2022 Writeup

URL Source: https://mraihananta.medium.com/beginner-picomini-2022-writeup-85d1d89994ee?source=rss------cybersecurity-5

Published Time: 2026-06-21T00:42:10Z

Markdown Content:
# Beginner picoMini 2022 Writeup. My writeup for the Beginner picoMini… | by flix | Jun, 2026 | Medium

[Sitemap](https://mraihananta.medium.com/sitemap/sitemap.xml)

[Open in app](https://play.google.com/store/apps/details?id=com.medium.reader&referrer=utm_source%3DmobileNavBar&source=post_page---top_nav_layout_nav-----------------------------------------)

Sign up

[Sign in](https://medium.com/m/signin?operation=login&redirect=https%3A%2F%2Fmraihananta.medium.com%2Fbeginner-picomini-2022-writeup-85d1d89994ee&source=post_page---top_nav_layout_nav-----------------------global_nav------------------)

[](https://medium.com/?source=post_page---top_nav_layout_nav-----------------------------------------)

Get app

[Write](https://medium.com/m/signin?operation=register&redirect=https%3A%2F%2Fmedium.com%2Fnew-story&source=---top_nav_layout_nav-----------------------new_post_topnav------------------)

[Search](https://medium.com/search?source=post_page---top_nav_layout_nav-----------------------------------------)

Sign up

[Sign in](https://medium.com/m/signin?operation=login&redirect=https%3A%2F%2Fmraihananta.medium.com%2Fbeginner-picomini-2022-writeup-85d1d89994ee&source=post_page---top_nav_layout_nav-----------------------global_nav------------------)

![Image 1: Unknown user](https://miro.medium.com/v2/resize:fill:64:64/1*dmbNkD5D-u45r44go_cf0g.png)

# **Beginner picoMini 2022 Writeup**

[![Image 2: flix](https://miro.medium.com/v2/resize:fill:64:64/1*6VAyMG32Ybn_dwggEepopA.jpeg)](https://mraihananta.medium.com/?source=post_page---byline--85d1d89994ee---------------------------------------)

[flix](https://mraihananta.medium.com/?source=post_page---byline--85d1d89994ee---------------------------------------)

6 min read

·

Just now

[](https://medium.com/m/signin?actionUrl=https%3A%2F%2Fmedium.com%2F_%2Fvote%2Fp%2F85d1d89994ee&operation=register&redirect=https%3A%2F%2Fmraihananta.medium.com%2Fbeginner-picomini-2022-writeup-85d1d89994ee&user=flix&userId=014653e4dda6&source=---header_actions--85d1d89994ee---------------------clap_footer------------------)

--

[](https://medium.com/m/signin?actionUrl=https%3A%2F%2Fmedium.com%2F_%2Frepost%2Fp%2F85d1d89994ee&operation=register&redirect=https%3A%2F%2Fmraihananta.medium.com%2Fbeginner-picomini-2022-writeup-85d1d89994ee&user=flix&userId=014653e4dda6&source=---header_actions--85d1d89994ee---------------------repost_header------------------)

[](https://medium.com/m/signin?actionUrl=https%3A%2F%2Fmedium.com%2F_%2Fbookmark%2Fp%2F85d1d89994ee&operation=register&redirect=https%3A%2F%2Fmraihananta.medium.com%2Fbeginner-picomini-2022-writeup-85d1d89994ee&source=---header_actions--85d1d89994ee---------------------bookmark_footer------------------)

[Listen](https://medium.com/m/signin?actionUrl=https%3A%2F%2Fmedium.com%2Fplans%3Fdimension%3Dpost_audio_button%26postId%3D85d1d89994ee&operation=register&redirect=https%3A%2F%2Fmraihananta.medium.com%2Fbeginner-picomini-2022-writeup-85d1d89994ee&source=---header_actions--85d1d89994ee---------------------post_audio_button------------------)

Share

My writeup for the Beginner picoMini 2022 challenges! It consists of pretty simple general skills challenges that serve as a good starting point for beginners!

## Challenge #01 : Codebook

Press enter or click to view image in full size

![Image 3](https://mraihananta.medium.com/beginner-picomini-2022-writeup-85d1d89994ee?source=rss------cybersecurity-5)

**Walkthrough:**After downloading both files, I just ran the code.py file as instructed and it printed out the flag! What the code seems to be doing is it takes a few characters in codebook.txt and builds a password that will be used as an xor key to decode the flag_enc contained in the code.py file!

* **Flag :** picoCTF{c0d3b00k_455157_d

Read full article → ← Back to Reads

Beginner picoMini 2022 Writeup

Key Takeaways

Full Article

Related Videos