Safe Opener — Reverse Engineering | PicoCTF 2022 Writeup

Safe Opener — Reverse Engineering | PicoCTF 2022 Writeup

Safe Opener — Reverse Engineering Challenge on Pico CTF 100 Points | Karthikeyan Nagaraj

Description:
Can you open this safe?
I forgot the key to my safe but this program is supposed to help me with retrieving the lost key. Can you help me unlock my safe?

Task File:
Download the Task File SafeOpener.java here https://artifacts.picoctf.net/c/463/SafeOpener.java

Analysis:

Program code of SafeOpener: java

import java.io.*;
import java.util.*;  
public class SafeOpener {
    public …

ctf ctf-writeup engineering karthikeyan-nagaraj picoctf reverse reverse engineering safe writeup