Method for communicating between a reader and a wireless identification marker, associated reader and marker
US7942324B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 30, 2006 |
| Grant date | May 17, 2011 |
| Priority date | — |
| Expiry date | Jan 24, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/805
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method includes transmitting a first digital channel (X0) from a reader to a marker, receiving a second digital channel (Y0) corresponding to the first digital channel and to errors introduced by a noisy channel, introducing artificial errors into at least one of the first or second digital channels, carrying out an advantage distillation phase in such a way that a new first digital channel (X1) is determined for the reader. A new second digital channel (Y1) is determined for the marker such that the advantage is taken with respect to a possible passive attacker. In an information reconciliation phase, an error-correcting protocol is applied to the new first (X2) and new second (Y2) digital channel, and in carrying out a secrecy amplification phase, a hash function (G) is applied to the new first (X2*) and the new second (Y2*) digital channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.