Client device and local station with digital rights management and methods for use therewith
US8458459B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 14, 2011 |
| Grant date | Jun 4, 2013 |
| Priority date | — |
| Expiry date | Jul 13, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/60
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A current version certificate is stored that includes a corresponding current version identifier. A current instance certificate is received from the certificate authority, wherein the current instance certificate includes the current version identifier of the current version certificate and a current instance public key corresponding to the current instance private key. The current instance certificate is sent to a local station, during a registration with the local station. A request for video content is generated and sent to the local station. First encrypted data is received from the local station, wherein the first encrypted data includes a content key that is encrypted via the current instance public key. Second encrypted data is received from the local station, wherein the second encrypted data includes the video content that is encrypted via the content key.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.