This file is called KEYDB.cfg and is accessed by libaacs in ~/.config/aacs. However, combined with a key database file, it is possible to use it to play Blu-ray discs that use the AACS standard. This project does not offer any key or certificate that could be used to decode encrypted copyrighted material. Libaacs is a research project from the VideoLAN developer team to implement the Advanced Access Content System specification, and distributed as an open-source library. Many articles and research papers describe it in detail at, or. ![]() The AACS specification and decryption process are publicly available at. Although the industry was able to revoke the first leaked decryption keys, new keys are regularly published in a cat and mouse play. Many decryption programs were made available, but the interest to Linux users was the capability of playing their discs - legally purchased - on their computers. ![]() In 2007, the AACS system was compromised and decryption keys were published on the Internet. Although most of commercial discs use AACS, a few of them additionally use BD+. Secondly, Blu-ray may also use another layer of protection: BD+. Firstly, the AACS standard uses a lot more complicated cryptographic process to protect the disc content, but also allows the industry to revoke compromised keys and distribute new keys through new discs. How it works Blu-ray DRMĬontrary to the DVD CSS, which was definitely compromised once the unique encryption key had been discovered, Blu-ray uses stronger DRM mechanisms, which makes it a lot more difficult to manage. ![]() This is legal in most countries where interoperability allows this. Note: Since no commercial Blu-ray player software is available on their system, Linux users have to use open-source libraries capable of handling the DRM schemes that protect these disc contents.
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