Secure RFID communication method
US11398898B2 · kind B2 · utility
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24Claims
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Key dates
| Filing date | Jul 21, 2017 |
| Grant date | Jul 26, 2022 |
| Priority date | — |
| Expiry date | Jul 21, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K19/0723
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A secure communication method between an RFID transponder and an RFID reader. The method includes at least the following steps: the RFID reader sends a series of random numbers A1 to the RFID transponder; the RFID transponder sends a series of random numbers A2 to the RFID reader; the RFID reader sends a result R1 to the at least one RFID transponder; the RFID transponder compares the result R1 with a result R1′. If R1′ is equal to R1, then the RFID transponder switches from a locked communication mode to an unlocked communication mode, and sends a result R2′ to the at least one RFID reader.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.