Method and system for managing key of home device in broadcast encryption (BE) system
US8054975B2 · kind B2 · utility
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12Claims
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Key dates
| Filing date | Apr 11, 2006 |
| Grant date | Nov 8, 2011 |
| Priority date | — |
| Expiry date | Jun 21, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/601
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and a system for managing a key of a home device in a broadcast encryption system are provided. A hierarchical structure of a group set comprising a plurality of nodes corresponding to the home server and a plurality of nodes corresponding to the home device is formed. A key set to be allotted to the node set is generated. The node group is allowed to correspond to the key set to generate key-node corresponding information according to a request of the home server.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.