Patent · US Active

Systems and methods for performing transactions with contactless cards

US12125027B2 · kind B2 · utility

0Cited by
251References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 28, 2021
Grant dateOct 22, 2024
Priority date
Expiry dateNov 16, 2041

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04L2209/56
  • WIPO fieldDigital communication
  • WIPO sectorElectrical engineering

Abstract

Example embodiments of systems and methods for data transmission system between transmitting and receiving devices are provided. In an embodiment, each of the transmitting and receiving devices can contain a master key. The transmitting device can generate a diversified key using the master key, protect a counter value and encrypt data prior to transmitting to the receiving device, which can generate the diversified key based on the master key and can decrypt the data and validate the protected counter value using the diversified key.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.