Smart card reader with public key index on host device
US10108947B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2014 |
| Grant date | Oct 23, 2018 |
| Priority date | — |
| Expiry date | Nov 30, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07F7/0873
- WIPO fieldIT methods for management
- WIPO sectorElectrical engineering
Abstract
Aspects of the subject disclosure provide a reader device for managing transactions using financial instruments with encrypted data storage devices, such as integrated circuit cards (ICC). In some implementations, a reader device of the subject technology can be configured to access the encrypted information in an ICC via an index or table of keys stored on a host device. In operation, upon detecting an ICC, the reader device can obtain application or protocol information for the ICC and concurrently pre-fetch keys from the host device, so that the pre-fetched keys are received prior to or concurrently with the application or protocol information. In the event that the pre-fetch fails to provide the keys needed for the application or protocol of the ICC, the reader device can make a specific request for the exact keys needed for the application or protocol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.