Quantum Scrambler — picoCTF 2025 Writeup The Quantum Scrambler is a reverse engineering challenge from picoCTF 2025. It may seem challenging — but once broken down, it is much more simpler …

InfoSecWriteUps' platform is  dedicated to providing insights and resources for cybersecurity professionals and enthusiasts. Through articles, tutorials, and security research, InfoSecWriteUps offers insights into cybersecurity vulnerabilities, attack techniques, and defense strategies. Readers can learn about penetration testing, threat intelligence, and incident response to enhance their cybersecurity knowledge and skills.

InfoSec Write-ups

A walkthrough of solving the Quantum Scrambler reverse engineering challenge from picoCTF 2025. The challenge involves analyzing Python code that scrambles a flag by converting characters to hexadecimal and adding padding values. The solution extracts the first and last values from each scrambled list element and converts them back to characters to reveal the flag.