Bd+

[jabawonky]

Hey,

Doing a final project for my security class tonight. I decided since I love Blu-ray more then I should that I would do my project on the security of the next gen discs blu/hddvd. One of my major topics is going to be about BD+ but before I go looking elsewhere for information, I thought I would ask the forum I read the most for some information. If you know any of the special security features (like whether its been cracked/replicated etc.) on BD+ or HDDVD for that matter please post some info.

Anything helps!

[jorg]

BD+ was developed by Cryptography Research Inc. and is based on their concept of Self-Protecting Digital Content BD+ is effectively a small virtual machine embedded in authorized players. It allows content providers to include executable programs on Blu-ray Discs. Such programs can

it examines the host environment, to see if the player has been tampered with. Every licensed playback device manufacturer must provide the BD+ licensing authority with memory footprints that identify their devices.

* verify that the player's keys have not been changed.
* execute native code, possibly to patch an otherwise insecure system.
* transform the audio and video output. Parts of the content will not be viewable without letting the BD+-program unscramble it.
BD+ adds a second encryption system on the disk. This decryption is only done at the very end. It can detect several hacks in the device, but it can’t circumvent the vulnerability. What happens is that the decryption is not run so now the content is useless and the disk won’t play.(anthony p)

The specifications of the BD+ virtual machine are only available to licensed device manufacturers. A list of licensed adopters is available from the BD+ website.

BD+ was made available for content publishers in June 2007.[55] The first titles using BD+ were released in October the same year. BD+ has been circumvented by the developers of the program AnyDVD as of version 6.1.9.6 beta.[57]wiki

[Anthony P]

Yes some titles have used BD+
No there is no equivalent on HD DVD.
BD+ is almost like having a different security on each title
One BD+ title has been de-encrypted.

[Anthony P]

If a playback device manufacturer finds that its devices have been hacked, it can potentially release BD+-code that detects and circumvents the vulnerability.

that is not exactly true. BD+ adds a second encryption system on the disk. This decryption is only done at the very end. It can detect several hacks in the device, but it can’t circumvent the vulnerability. What happens is that the decryption is not run so now the content is useless and the disk won’t play.

[ClaytonMG]

And it wasn't BD+ causing the problems on the discs with it, it was the Java features.

[jorg]

edited anothony did both day after tommorow and fantastic 4 have bd+ or just the 1

[Anthony P]

edited anothony did both day after tommorow and fantastic 4 have bd+ or just the 1

don't remember which ones had it. Honestly I don't really care. The best place to ask would be the insider's thread.