New patents are issued by the USPTO on Tuesdays. Both of today's Spotlight Patents concern aspects of digital rights management. Assigned to Intel, the first patent addresses techniques for platform-hardened digital rights management key provisioning. Assigned to Microsoft, the second patent addresses techniques for media decoding control with hardware-protected digital rights management.
9,436,812, "Platform-hardened digital rights management key provisioning," assigned to Intel.
Embodiments of an invention for platform-hardened digital rights management key provisioning are disclosed. In one embodiment, a processor includes an execution unit to execute one or more instructions to create a secure enclave in which to run an application to receive digital rights management information from a provisioning server in response to authentication of the application by a verification server.
9,430,619, "Media decoding control with hardware-protected digital rights management," assigned to Microsoft.
Innovations in the area of hardware-protected digital rights management ("DRM") systems are presented. For example, a hardware-protected DRM system includes a trusted layer and untrusted layer. In the untrusted layer, a control module receives source media data that includes encrypted media data. The control module processes metadata about the media data. The metadata, possibly exposed by a module in the trusted layer, is not opaque within the untrusted layer. In the trusted layer, using key data, a module decrypts encrypted media data, which can be the encrypted media data from the source media data or a transcripted version thereof. A module in the trusted layer decodes the decrypted media data. A host decoder in the untrusted layer uses the metadata to manage at least some aspects of the decoding, rendering and display in the trusted layer, without exposure of decrypted media data or key data within the untrusted layer.