Efficient, secure multicasting with minimal knowledge
US6195751A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 1998 |
| Grant date | Feb 27, 2001 |
| Priority date | — |
| Expiry date | Apr 24, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2463/102
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system for secure multicast including a plurality of participants that can send and receive multicast messages. A traffic distribution component is coupled to the participating entities, where the traffic distribution component supports multiple receiver communication. A participant key management component operates within each participant entity where the participant key management component uses a first key that is shared with all of the other participants, and a second key that is shared with a subgroup of participants. A group key management component is implemented using a flat data structure having a size that is logarithmically proportional to the number of participants.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.