Rekey operation with multiplexing capability
US7245724B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2002 |
| Grant date | Jul 17, 2007 |
| Priority date | — |
| Expiry date | Jul 14, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/80
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method of providing a protocol for rekeying between two stations is disclosed. The method can include providing a first set of messages for computing a new key and reserving an auxiliary storage area for the new key. The first set of messages comprises an enable exchange. The method also includes providing a second set of messages to obsolete an old key and switch to the new key. The second set of messages comprises a transition exchange. In one embodiment, the protocol includes rekeying between multiple stations, and the rekey coordinator sends the first set of messages to a plurality of rekey participants. The auxiliary storage area allows multiplexing in both the enable and transition exchanges, thereby facilitating an efficient and safe rekey operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.