Secure Wiegand communications
US8943562B2 · kind B2 · utility
2Cited by
145References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 29, 2012 |
| Grant date | Jan 27, 2015 |
| Priority date | — |
| Expiry date | Nov 29, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/805
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention is directed toward secure access systems. Specifically, a method and system is provided that enhances the security of unidirectional communication protocols used in access control systems, such as the Wiegand protocol. The enhancements may include obfuscation of data, a two-way packet-mode communications, and blind synchronization of pseudo-random number generators.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.