Secure communication between an electronic label and a reader
US8458469B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2008 |
| Grant date | Jun 4, 2013 |
| Priority date | — |
| Expiry date | Jan 2, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/805
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The invention relates to a secure communication between an electronic label (A) and a reader (B), in particular for the authentication of the label by the reader, in which: the reader (31) transmits at least one datum (Ch) to the label, the label calculates a combination comprising at least the datum from the reader (Ch)) and a secret (Si) specific to the label, and the label communicates (32) the result (C(Si, Ch)) of the combination to the reader (B) for verification purposes. The aforementioned combination (C(Si, Ch)) is preferably calculated using a current secret value (Si) delivered by a pseudo-random number generator (33). The reader (B) is also provided with a homologous pseudo-random generator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.