Open-source unpacker for Microsoft Imagine/Dreamspark/MSDNAA SDC format
Open-source unpacker for Microsoft's proprietary SDC format
xSDM is the program that unpacks from SDC (Secure Download Container) archive files. SDC is the format used by SDM (Secure Download Manager) - program needed to download from sites like MSDNAA/Dreamspark. It requires key file that can be gained by sniffing Dreamspark's transmission or using browser's developer tools.
You need to have following packages in your system:
On some distros these packages may be split into binaries and headers (like on Debian-based systems). In this case you have to install packages named *-dev (eg. libmcrypt-dev).
To do unit tests you also have to have check installed.
You should also have 64-bit Linux system (amd64). Any other configuration (including MinGW and Mac OS X) may not work. There are few known errors that may prevent you from correctly unpacing files on old 32-bit Linux systems. I am not providing any support for more exotic systems.
You are encouraged to use stable release instead of cloning master. Currently
the most stable release can be downloaded
from here. You
can also just clone repository and switch to v1.0.0 branch by typing
git checkout v1.0.0
. If are experienced enough, you can use master
branch or even one of *-dev branches to test future enhancements.
To compile the program you just need to issue standard
./configure
make
make install
where make install is optional. It will install xsdm into your system.
Program needs .sdc file as the only parameter. Decryption key should be placed in file named '$(sdcFileName).key'. Key file should be in same format as 'edv*' variable in Dreamspark's XML, that is 'crc+"^^"+fileNameKey+headerKey+xorKey', where crc and xorKey are decimal, 32-bit numbers.
You can find detailed instruction on how to download SDC file and find key on my site. There is also description of SDC file format (here)