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Microsoft Windows Vista enables the playback of next-generation premium content such as HD-DVD and other formats protected under the AACS standard. To ensure access to this new content, Windows Vista systems must support the requirements that are defined by the premium-content owners. A key requirement is code signing, which helps ensure great consumer experiences by providing increased driver reliability and increased security against malware.
System and device manufacturers must follow new code-signing requirements for modules that support playback of premium content on Microsoft Windows Vista. These requirements include:
To help ISVs determine how to handle playback of next-generation premium content, Windows Vista exposes a list of the unsigned drivers on the system. It is up to the ISV to determine whether to enable playback.
The driver and application components that make up the Windows Vista Protected Media Path (PMP) - including user-mode components - must be signed for the PMP to ensure access to premium content.
Display device drivers must include an embedded certificate that verifies a robust pipeline throughout the video processing engine.
This paper provides information for hardware manufacturers and software vendors about the code-signing requirements for playing premium content in Windows Vista.
Included in this paper:
The PMP and Output Protection
Code-Signing Requirements for PMP Components
How to Obtain Certificates
Best Practices for Code Signing PMP Components
Understanding the User Experience with Premium Content
