Floating Trees - #projects - Minecraft Dungeons Arcade Game Software

The code for Minecraft Dungeons Arcade doesn't seem to be archived online anywhere. It should be possible to download a copy of the game software and reupload it to the internet if one were to have access to an actual Minecraft Dungeons Arcade machine. Unfortunately, these cost thousands of dollars and weigh half a ton so getting one may not be easy. The machine in question: https://minecraft.wiki/w/File:MCD_arc-cab1.png

ok so this is a bit of an "insider" thing but I will say that there has been a development on this topic

really recently

there is a build, however, the build is basically useless

it is encrypted in a way that is actually secure

to the level of "if this can be cracked, cryptography as a whole is in danger"

to actually decrypt this, the "dongle" is required, and we don't have that

it's also not impossible that builds are unique per machine, and that you cannot use a different dongle than the one that came with this specific build

so really we probably need *the* dongle and *the* build

also, this was posted online a while ago https://www.reddit.com/r/MinecraftDungeons/comments/1dgj2ao/bad_news_about_arcade_version/

this is where the unique builds claim comes from

also, it speaks about possible *consequences* of leaking the build for the specific place it would be leaked from. it is not unlikely that they can ban machines remotely, though the post doesn't claim that outright.

another reason this might be true is that one person (whom I trust) tried to order an update USB, and they were asked for the machine's serial code

here's some screenshots from the build

last one is censored as it normally contains what could be an unique identifier in the top right corner

yes the base OS is literally just Ubuntu 20.04, for both the installer and the game software

1. kernel and initramfs is loaded from unencrypted partition 2. initramfs calls a program called `donglecheck` 3. the program checks if the dongle is plugged in, if it isn't, displays the error screen 2. initramfs calls a program called `remoteinstall_s` 3. the program presumably asks the dongle for a key, which it then uses to unlock an encrypted root partition 4. boot continues from the encrypted partition

if someone actually owned this machine, the best course of action would be to build a modified kernel, so that we can dump the already unlocked key from the kernel keyring

LUKS1 could be done from userspace, but this is LUKS2

this is really strong encryption

there's also no "backdoor" key that could potentially be a regular old password

apparently there is a kernel module that allows you to dump the entire kernel memory

so really you would just need to build that module for Ubuntu 20.04 and inject it in the initramfs after the decryption is done

of course you'd also need to mount a USB drive to save the dumped memory to

then you could run a program on a different computer to find the AES key in memory