Method of authenticating a radio tag by a radio reader
US8593259B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 5, 2009 |
| Grant date | Nov 26, 2013 |
| Priority date | — |
| Expiry date | Dec 18, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/805
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The invention relates to a method of authenticating a radio tag by a radio reader, the tag possessing an identifier accessible to the reader via a database of tag identifiers, comprising: dispatching an authentication request by the reader to the tag, dispatching by the tag, a response, calculated by applying a first function to at least the identifier, a calculation by the tag and by the reader of a new identifier, by applying a second function to the identifier, comprising: if the response dispatched by the tag corresponds to a result obtained by applying said first function to an identifier of the base, a dispatching by the reader a first value, calculated by applying a third function to said identifier of the base.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.