Reliable timestamp credential
US9948673B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 26, 2016 |
| Grant date | Apr 17, 2018 |
| Priority date | — |
| Expiry date | Aug 16, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2463/121
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A process for generating an access credential by a communication device may include determining whether a communication device successfully executed a predetermined shutdown sequence when the communication device last transitioned to an inactive state, determining whether the communication device has synchronized with an authorization network subsequent to transitioning back to an active state, and generating the access credential including a timestamp. The access credential may indicate whether the access credential has reliable timestamp information. The access credential can be provided to an access device associated with an authorization network to authenticate the communication device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.