BD+ and AACS are literally that though, that’s why VLC can’t play blu-rays.

> NB: Most commercial Blu-Ray are protected by AACS or BD+ technologies and this library is not enough to playback those discs.

https://www.videolan.org/developers/libbluray.html

clicking into the libaacs and libbd+ yields:

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