The latest MKB is version 70, and many discs actually share the same MKB. MKBs have been renewed since the first commercial Blu-ray release in 2006. Note that it is the disc that contains the MKB. Finally those Title Keys unscramble the disc's protected media content.This VUK is used to unscramble the disc's scrambled Title Keys.That Media Key, together with the disc's Volume ID (VID) obtained by the player presenting a valid Host Certificate to the drive is used to compute the Volume Unique Key (VUK).The software/embedded player's Device Keys, together with the disc's Media Key Block (MKB) data are used to retrieve a "Processing Key", and with that (plus another datum from the MKB) to compute the Media Key.The AACS decryption process for a protected disc by a licensed player goes through four stages: 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. 2.5.4 If you have the corresponding VUK but the Blu-ray will not playĬontrary 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.2.5.3.1 If aacskeys is not able to generate the key.2.3.2 Decrypting using PK and Host K/C (step 3.2.2).Once you've done all of that - come back and let me know how it went, and identify where you found problems. Remember that you will have to reboot each time after you change things. This may not be possible, but we can at least identify where the problems occur. Our goal is to try to get back to "normal startup" on the first page of MSCONFIG. Identify which "things" are causing you trouble but strive to turn control back to Windows on as many items as possible. You may want to do it one at a time as I assume there is some reason you turned them off. Go back to MSCONFIG and turn things back on.Look through your computer and delete all of the programs that you don't want/need.I'm going to recommend that you take some fairly drastic measures: And finally, it looks like you have allowed a boatload of programs to tunnel through your fire wall.essentially bypassing it. not for day-to-day running of your computer. That should be used as a diagnostic tool. It also looks like you have been managing things by playing in MSCONFIG. I'd also suggest that if you try it and it isn't something that you actually want/need - delete it. ![]() It's your computer to use as you desire, but I'd suggest you use a little discretion when trying out new program. These programs are typically not something you really wanted and use up resources, and, at worst, can be malicious. This carries some risk as many of those "free" program come with PUP's - Possibly Unwanted Programs. It looks like you really like to install a variety of programs.
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