Method and terminal for detecting fake and/or modified smart card
US7454318B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 5, 2003 |
| Grant date | Nov 18, 2008 |
| Priority date | — |
| Expiry date | Dec 26, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K19/07372
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
This invention relates to a method and a terminal for detecting a fake and/or modified smart card inserted into a physical interface of a terminal, the method comprising the steps of performing a sequence of current measurements by a current monitor in order to obtain a first current signature, comparing the obtained first current signature with a second current signature, representing a unique current signature of a smart card, and determining whether a difference exists within a predetermined range between the first current signature and the second current signature. This allows for simple detection of fake and/or modified smart cards. Further, it is possible to detect (and thereby protect against) false cards and/or ‘rouge’ application residing on a smart card.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.