Protection of sensitive information contained in integrated circuit cards
US6264108A · kind A · utility
46Cited by
6References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 7, 1999 |
| Grant date | Jul 24, 2001 |
| Priority date | — |
| Expiry date | Jun 7, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/0002
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An integrated circuit card comprises a shield for detecting an intrusion, a protection unit for controlling the erasure or destruction of sensitive information, and power interrupt circuitry which maintains the power if no external power is supplied. The shield informs the protection unit if an intrusion is detected and the protection unit controls the erasure or destruction of said sensitive information. The power interrupt circuitry maintains power for erasure or destruction of information if no external power is supplied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.