Secure software customization for smartcard
US7299366B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 18, 2003 |
| Grant date | Nov 20, 2007 |
| Priority date | — |
| Expiry date | Apr 19, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06Q20/40975
- WIPO fieldIT methods for management
- WIPO sectorElectrical engineering
Abstract
The customizing of a smartcard chip with a complete software begins with masking a smartcard chip by storing a first part of the software. The first part of the software, when executed, is enabled to input unlocking data at an input port of the smartcard chip, to use the unlocking data to decrypt encrypted data stored in the smartcard, and to store the decrypted data in the smartcard memory. Masking of the smartcard chip further comprises storing encrypted customization software. The customization software, when executed, is enabled to input data and to store the input data in the smartcard memory. After decrypting and executing the customization software; the second part of the software is input and stored in the smartcard, enabling the whole software on the smartcard.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.