unsegaREBORN

An all-in-one tool that unpacks (and optionally extracts) arcade SEGA images.

Features

Decrypts update/app containers
Extracts the embedded
- NTFS archives (with nested VHDs)
- exFAT archives (cluster-by-cluster walker)
Cross-platform (Windows / Linux / macOS)
Uses plain C11 + OpenSSL, no fancy dependencies.
Can be built fully static (--static) if you need a drop-in binary.

Building

Unix-like (Linux / macOS)

./build.sh               # release build
./build.sh --debug       # debug symbols, no optimisation
./build.sh --static      # link everything statically

Windows (MSVC or MinGW)

build.bat                :: release build
build.bat --debug        :: debug build
build.bat --static       :: static CRT + OpenSSL

Usage

unsegareborn [-no] <image1> [image2 …]

  -no   just decrypt, do NOT auto-extract the embedded file system

The program writes a decrypted .ntfs or .exfat file next to the input and, unless -no is given, immediately unpacks its contents into a folder with the same stem.

You can also just drag and drop the image(s) on the program. ("-no" flag is disabled by default)

Where do the keys come from?

They were all collected from leaks over time.

If you have additional keys and want to contribute, feel free to open a PR.

If you are a gatekeeper, you can just use the built in custom key function.

License

UNLICENSE

Caveats / TODO

No APM3 support. Maybe will be added when I feel like it.

Child VHD won't be processed for app files. If the output VHD number is not zero (e.g. internal_1, internal_2) you are on your own.