Methods and apparatus for authentication
US9210578B2 · kind B2 · utility
3Cited by
1References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 12, 2012 |
| Grant date | Dec 8, 2015 |
| Priority date | — |
| Expiry date | Nov 23, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/18
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Message authentication in an ad-hoc network. Upon creation of a message, a message authentication code is created using a key shared with members of a group comprising a subset of nodes of the ad-hoc network. The message authentication code may be created using a cryptographic process having the message and a message identifier as inputs. After or in parallel with broadcast of the message, a pointer to the message is broadcast. The message authentication code is publicly broadcast and those members of the group among which the key has been shared are able to authenticate the message as coming from a particular sender.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.