Tag authentication method using rotation, and tag and reader performing the method
US8031055B2 · kind B2 · utility
2Cited by
3References
18Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 21, 2008 |
| Grant date | Oct 4, 2011 |
| Priority date | — |
| Expiry date | Jul 18, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/805
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A tag authentication method, and a tag and reader performing the method are provided. The tag authentication method, including: a reader generating a first random number and transmitting the first random number to a tag; the reader receiving a second random number and a first verification value from the tag; the reader computing a second verification value based on the first random number and the second random number; and the reader comparing the first verification value and the second verification value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.