Secure neighbor discovery (SEND) using pre-shared key
US9537872B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 31, 2014 |
| Grant date | Jan 3, 2017 |
| Priority date | — |
| Expiry date | Dec 31, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/061
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An extension is provided to the SEND protocol without requiring a CGA or third party trust anchor. A shared key is provided to both a sender and receiver of a neighbor discovery (ND) message. A digital signature option is contained in the ND message. A digital signature field is determined by the algorithm field in the option. When the ND message is received, the receiver may verify the digital signature field using the pre-shared key according to the algorithm field. If the ND message passes verification, the receiver may process the message.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.