Method and apparatus for performing enhanced time-based authentication
US7363494B2 · kind B2 · utility
360Cited by
54References
29Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 4, 2001 |
| Grant date | Apr 22, 2008 |
| Priority date | — |
| Expiry date | Dec 17, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/80
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A time-based method for generating an authentication code associated with an entity uses an authentication code generated from a secret, a dynamic, time-varying variable, and the number of previous authentication code generations within the particular time interval. Other information such as a personal identification number (PIN) and a verifier identifier can also be combined into the authentication code.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.