Secure non-geospatially derived device presence information
US9444807B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 25, 2015 |
| Grant date | Sep 13, 2016 |
| Priority date | — |
| Expiry date | Aug 25, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/54
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
This invention includes a system and method to enable a device to determine the presence information of another device over a secure communication network. First, the device and a presence server establish a secure connection. Next, while the initial secure connection with the presence server is established, the device generates a randomly created token and provides it to the presence server. The token is used as a shared-secret by the device and the presence server to secure future presence communications over a non-secure connection. Next, without the need to again enter a password or establish a secure connection with the presence server, the device uses the shared-secret to sign, encrypt and convey presence information to the presence server over an arbitrary connection. Finally, the presence server may share the first device's presence information with another device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.