Information sharing system, information sharing method, information sharing device, relay device and program
US12074968B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 10, 2020 |
| Grant date | Aug 27, 2024 |
| Priority date | — |
| Expiry date | Sep 2, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/0869
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A first information sharing device shares secret information with each relay device adjacent to the first information sharing device along a plurality of paths. A second information sharing device shares secret information with each relay device adjacent to the second information sharing device along the plurality of path. Each of the plurality of relay devices shares secret information with each relay device adjacent to each of the relay devices along the plurality of paths, generates public information using the shared secret information, and transmits the generated public information to the second information sharing device. The first information sharing device generates shared information using the secret information shared with each relay device adjacent to the first information sharing device along the plurality of paths. The second information sharing device generates shared information using the secret information shared with each relay device adjacent to the second information sharing device along the plurality of paths and the public information received from the relay device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.