Content playback APIS using encrypted streams
US8532290B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 4, 2011 |
| Grant date | Sep 10, 2013 |
| Priority date | — |
| Expiry date | Jun 8, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
One embodiment of the present invention sets forth a technique for decrypting digital content in a secure environment. The technique includes the steps of receiving a digital rights management (DRM) license associated with a first frame of encrypted data from a DRM server, where the DRM license includes a decryption key for decrypting the first frame of encrypted data, transmitting the DRM license to a secure content playback pipeline for storage, and transmitting the first frame of encrypted data to the secure content playback pipeline for decryption, where, in response to receiving the first frame of encrypted data, a trusted processing entity within the secure content playback pipeline decrypts the first frame of encrypted data based on the decryption key included in the DRM license to generate a first set of decrypted data and store the first set of decrypted data in a secure memory space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.