Cryptographic protocol for portable devices
US9032501B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 18, 2014 |
| Grant date | May 12, 2015 |
| Priority date | — |
| Expiry date | Aug 18, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W4/50
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Embodiments are directed towards communicating using a mobile device that performs actions including. A mobile device may be provisioned with an access point such that a provisioning key and a provisioning token for each of the provisioned access points may be stored on the mobile device. The mobile device may be determined to be in the presence of a provisioned access point based on the provisioning key and an advertising nonce. The advertising nonce may be encrypted with the provisioning key. A communication channel between the mobile device and the access point may be established based on a session nonce, the advertising nonce, and the provisioning key. A session key may be generated based in part on the advertising nonce and a message counter. And, encrypted message packets that include a message and a message authentication tag may be communicated to the access point.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.