Systems and methods for remotely loading encryption keys in a card reader systems
US8737623B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 13, 2011 |
| Grant date | May 27, 2014 |
| Priority date | — |
| Expiry date | Dec 27, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/0866
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Systems and methods for remotely loading encryption keys in card reader systems are provided. One such method includes storing, at a card reader, a device identification number for identifying the card reader, a first magnetic fingerprint of a data card, and a second magnetic fingerprint of the data card, wherein each of the first and second fingerprints includes an intrinsic magnetic characteristic of the data card, encrypting, using a first encryption key derived from the second fingerprint, information including the device identification number and first fingerprint, sending the encrypted information to an authentication server, receiving, from the authentication server, a score indicative of a degree of correlation between the first fingerprint and second fingerprint, and receiving, when the score is above a preselected threshold, a second encryption key from the authentication server, the second encryption key encrypted using a third encryption key derived from the first fingerprint.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.