theC64-toolkit
A Toolkit for TheC64Maxi and TheC64Mini firmware
Other tools require you to know the key (a lot of searching and/or reversing required) or are closed source.
Prerequisites
- GNU make
- gcc
- Golang > 1.17
- libgcrypt development files
Why a mix of C and Golang?
Golang's Twofish implementation does not support CFB mode and was producing
invalid results. Unfortunately, after trying a couple of the other languages that I know, the problem remained.
Reversing, I found out that libgcrypt 1.7.3 was used to encrypt the firmware so I decided to use the same library.
Plus, it was a nice experiment with cgo :-)
Decryption does not work anymore
sha256sum libEGL.so goes a long way ...
Greetz
- verdic for reversing the keygeneration algo.
- The giants on whose shoulders I am standing ...
LICENSE
GPL v3