RFID privacy-preserving authentication system and method
US8368517B2 · kind B2 · utility
2Cited by
2References
6Claims
0Family size
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Key dates
| Filing date | Aug 19, 2009 |
| Grant date | Feb 5, 2013 |
| Priority date | — |
| Expiry date | Aug 29, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2213/13095
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system and method for RFID privacy-preserving authentication is disclosed. The method first has a reader sending a request and a first random number to a tag. The tag then generates a second random number. A plurality of hash values are then computed at the tag. Each hash value uses the first random number, the second random number and at least one part of a key of the tag as inputs. The second random number and the computed hash values are then sent to the reader. Lastly, the reader identifies a validity of the tag from the received values. The hash values are all generated in parallel and are independent to each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.