System and method for downloading of files to a secure terminal
US7254706B2 · kind B2 · utility
7Cited by
5References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2001 |
| Grant date | Aug 7, 2007 |
| Priority date | — |
| Expiry date | Nov 20, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/3263
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Protection of private keys used to digitally sign files to be downloaded to a terminal is accomplished by storing the private keys in smartcards, and arranging a secure processor unit embedded in the smartcard to perform all signing operations requiring access to the keys so that the keys never leave the card. In addition, access to the signing operations is protected by multiple PINs, which may be distributed to multiple individuals and/or used to establish different signing authorization levels associated with different types of files.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.