diohabara/nsa-codebreaker-challenge2022

Write-ups for The NSA Codebreaker Challenge 2022: https://nsa-codebreaker.org/challenge

NSA CodeBreaker Challenge 2022

FYI: Official Write-up

Write-ups

• A1.pdf | A1.ipynb
• A2.pdf | A2.ipynb
• B1.pdf | B1.ipynb
• B2.pdf | B2.ipynb
• 5.pdf | 5.ipynb
• 6.pdf | 6.ipynb
• 7.pdf | 7.ipynb
• 8.pdf
• 9.pdf

How to build

Dependencies

• poetry

Install dependencies by poetry and activate poetry virtual environment

poetry install
poetry shell

If you want to build all files

./bin/convert.sh

Or a specific file

jupyter nbconvert --output-dir='./docs' --execute --to pdf <task>.ipynb

References

A2

• 2021 write-up of network
• what's ssl/tls

B2

• Writeup CTF 0x00sec Web - Exercise 1

5

• Memory Forensics of OpenSSH
• How to recover RSA private key in a coredump of ssh-agent – Sapheads HackJam 2009 Challenge 6
• OpenSSH ssh-agent Shielded Private Key Extraction (x86_64 Linux)
• Openssh Private Key to RSA Private Key

7

• CTFのWebセキュリティにおけるSQL Injectionまとめ（MySQL/MariaDB, PostgreSQL, SQL Server)
• How SQL Injection attack works