Techniques for enabling computing devices to identify when they are in proximity to one another
US11115818B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 31, 2019 |
| Grant date | Sep 7, 2021 |
| Priority date | — |
| Expiry date | Sep 13, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W92/18
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The embodiments set forth a technique for securely identifying relevant computing devices that are nearby. The technique can be implemented at a first computing device, and include the steps of (1) receiving, from a second computing device, an advertisement packet that includes: (i) a network address that is associated with the second computing device, and (ii) a hash value that is calculated using the network address and an encryption key that is associated with the second computing device, and (2) for each known encryption key in a plurality of known encryption keys that are accessible to the first computing device: (i) calculating a temporary hash value using the network address and the known encryption key, and (ii) in response to identifying that the temporary hash value and the hash value match: carrying out an operation associated with the second computing device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.