Content protection for data as a service (DaaS)

US9832172B2 · kind B2 · utility

Assignee

• Intel Corporation · US

Inventors

• Ned M. Smith · Beaverton, US
• Nathan Heldt-Sheller · Portland, US
• Pablo A. Michelis · Córdoba, AR
• Vincent J. Zimmer · Federal Way, US
• Matthew Wood · Sammamish, US
• Richard T. Beckwith · Hillsboro, US
• Michael A. Rothman · Puyallup, US

Key dates

• Filing date: Dec 24, 2013
• Grant date: Nov 28, 2017
• Expiry date: Dec 24, 2033

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L2463/101
• WIPO field: Audio-visual technology
• WIPO sector: Electrical engineering

Abstract

The present disclosure is directed to content protection for Data as a Service (DaaS). A device may receive encrypted data from a content provider via DaaS, the encrypted data comprising at least content for presentation on the device. For example, the content provider may utilize a secure multiplex transform (SMT) module in a trusted execution environment (TEE) module to generate encoded data from the content and digital rights management (DRM) data and to generate the encrypted data from the encoded data. The device may also comprise a TEE module including a secure demultiplex transform (SDT) module to decrypt the encoded data from the encrypted data and to decode the content and DRM data from the encoded data. The SMT and SDT modules may interact via a secure communication session to validate security, distribute decryption key(s), etc. In one embodiment, a trust broker may perform TEE module validation and key distribution.