Method and apparatus for providing secure communication among constrained devices
US10728043B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 20, 2016 |
| Grant date | Jul 28, 2020 |
| Priority date | — |
| Expiry date | Oct 6, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/06
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In one example, an apparatus such as an authorization server and method for secure communication between constrained devices issues cryptographic communication rights among a plurality of constrained devices. Each of the plurality of constrained devices comprises no more than one cryptographic algorithm code module per cryptographic function. The method includes receiving a cryptographic communication rights request associated with at least a first of the plurality of constrained devices in response to a cryptographic algorithm update request, and includes providing a response including an identification of a subset of the plurality of constrained devices that have cryptographic communication rights with the identified first of the plurality of constrained devices. A software update server then updates the cryptographic code modules in the sub-set of the plurality of constrained devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.