Communication apparatus, control method thereof, and storage medium
US8447040B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 2, 2008 |
| Grant date | May 21, 2013 |
| Priority date | — |
| Expiry date | Sep 11, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/18
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A first communication apparatus that functions as a providing apparatus that provides an encryption key or as a receiving apparatus that receives an encryption key provided by a providing apparatus, and that performs a key sharing process for sharing an encryption key with another apparatus, confirms whether or not the first communication apparatus functioned as the providing apparatus in the key sharing process performed among a plurality of apparatuses present on a network in which the first communication apparatus is joining; compares identification information of a second communication apparatus that has newly joined the network with identification information of the first communication apparatus; and determines whether or not the first communication apparatus is to function as a providing apparatus in the key sharing process performed between the first and the second communication apparatuses based on the result of the confirmation and the comparison.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.