jirubizu on 2023-04-08 20:37:
I won't lie, I don't think this is a 2.0 difficulty as you can simply open this up in something like luyten and see the code key in plain text. 1.0 difficulty seems more appropriate but nice regardless
chris.dinozzi on 2023-04-14 11:19:
i agree with jirubizu, it's quite an easy room, but was fun regardless. my first time on the site and my first time reversing a .jar file so i enjoyed it.
Mypowaa on 2023-05-20 15:55:
Sorry I never tried this for java and I'm a beginner is the .jar supposed to open or what ?
0xh3xa on 2023-05-27 14:37:
@Mypowaa The jar is just an archive method to put all *.classes files together, the way to decompile the byte-code of the *.classes using tools like bytecode-viewer, jadx, etc.
https://github.com/skylot/jadx
https://github.com/Konloch/bytecode-viewer
juansacco on 2023-09-12 09:10:
Here is the key
8J3NYK-XY6021-LJ1hJB-591TT0
quitx on 2024-02-22 14:15:
0TT195-BJh1JL-1206YX-KYN3J8
Dark_Cyber on 2024-08-17 07:42:
0TT195-BJh1JL-1206YX-KYN3J8
Kafiw on 2024-09-09 21:54:
8J3NYK-XY6021-LJ1hJB-591TT0 0 protect erm what the sigma
mthom41 on 2025-11-24 22:02:
Completed, agreed with others on diff 1; couldn't get this to run on my machine to actually enter the code, had to use a random online compiler. Probably should include some guidance on a specific Java version in the instructions.