| 主权项 |
1. A method comprising:
issuing, by a sandboxed application, a request to enable content protection for audio and video content; sending the request via an application programming interface to an unsandboxed application; receiving, from the unsandboxed application, the request by an output device; after receiving the request, enabling content protection; employing, by the output device, a certificate to create a signed message indicating the content protection is enabled; providing, by the unsandboxed application, the signed message to the sandboxed application; verifying, by the sandboxed application, that the signed message is from a trusted entity; verifying, by the sandboxed application, that the trusted entity performed the request; verifying, by the sandboxed application, that the request has been fulfilled based on the signed message; providing, by the sandboxed application, protected audio and video content; and outputting the protected audio and video content. |
