DRM: October 2007 Archives


October 30, 2007

Terence Spies pointed me to this item from the AACS licensing association:
AACS LA announces that it has started periodic "proactive renewals", which, primarily for software player applications, provide for periodic renewal and refreshing of AACS encryption keys by licensed manufacturers and eventual expiration of old keys by AACS LA. This helps maintain the AACS technology as a vital means of distributing valuable high definition content to consumers. Consumers should expect that updates/patches will be periodically offered by their software manufacturer in order to ensure that the players continue to function as intended. The upgrading of software is a common practice in the software industry. Pursuant to the AACS technology licenses, manufacturers of software players are required to perform such updates in a consumer-friendly fashion.
In other words, if you don't update, you won't be able to play new disks. That's not exactly a customer-friendly value proposition.

As I said earlier, this seems like an arms race that's going to be pretty hard for the manufacturers to win. It's really inconvenient for the customers to have to upgrade their players, and it's not like each new release is a simple matter of changing the key and respinning the distribution. If you want to stop the crackers from immediately extracting the key, you need to re-obfuscate the binaries so that they have to attack the binary again. The combination is not cheap for the manufacturers

In other news, Antigua-based Slysoft claims to have cracked Blu-Ray's BD+ copy protection.