Detection of tampering of a smart card interface
US7293709B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 4, 2003 |
| Grant date | Nov 13, 2007 |
| Priority date | — |
| Expiry date | Apr 18, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/0091
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
This invention relates to a method (and a corresponding terminal) of detecting a presence of a circuit extending arrangement inserted between a physical interface, connected to a terminal, and a smart card, the physical interface being adapted to receive the smart card, the method comprising the steps of measuring at least one electrical characteristic of the physical interface, and determining whether a circuit extending arrangement, changing at least one characteristic of said physical interface, is coupled to said physical interface on the basis said measurement. In this way, simple and efficient detection of a tampering/spy circuit is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.