VideoLAN association
A project and a non-profit organization, composed of volunteers, developing and promoting free, open-source multimedia solutions.


libaacs is a research project to implement the Advanced Access Content System specification.
This research project provides, through an open-source library, a way to understand how the AACS works.

This research project is mainly developed by an international team of developers from Doom9.

Latest release is libaacs 0.8.1.

NB: this project doesn't offer any key or certificate that could be used to decode encrypted copyrighted material.


Get libaacs

You can get libaacs latest release on our ftp: libaacs 0.8.1.

libaacs is also available through Git at:
git clone git://

You can browse the source code at

Mailing list

You can discuss about libaacs on the libaacs-devel mailing list.


libaacs does not infringe DRM's right or copyright. See more on our legal page.

Legal Contact

Si vous avez le moindre problème légal (If you have ANY issue with the legal part): Contact