Key distribution for encrypted broadcast data using minimal system bandwidth
US7581110B1 · kind B1 · utility
7Cited by
13References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 24, 2000 |
| Grant date | Aug 25, 2009 |
| Priority date | — |
| Expiry date | Jan 11, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/80
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
This invention provides a bandwidth-efficient mechanism whereby the source or originating node(s) (the invention supports multiple source nodes, each creating single or multiple broadcast message(s)) may utilize broadcast addressing service to efficiently reach multiple receiver nodes and still control which receiver node(s) may access the broadcast data or message. This method is realized by a novel and efficient key distribution technique.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.