System and method of authentication using a re-writable security value of a transaction card
US11170614B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 2020 |
| Grant date | Nov 9, 2021 |
| Priority date | — |
| Expiry date | May 18, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06Q20/4016
- WIPO fieldIT methods for management
- WIPO sectorElectrical engineering
Abstract
A method for authenticating a transaction includes replacing a first security value of a transaction device with a second security value; receiving, during a first transaction, the second security value; authenticating the first transaction based at least in part on the second security value; determining that a predetermined number of transactions have occurred during which the second verification value was not rewritten since the second security value was replaced; responsive to determining that the predetermined number of transactions have occurred, replacing the second security value on the transaction device with a third security value; receiving, during a second transaction, the third security value; and authenticating the second transaction based at least in part on the third security value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.