Dynamic management of access rights lists in a portable electronic object
US7434250B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 8, 2002 |
| Grant date | Oct 7, 2008 |
| Priority date | — |
| Expiry date | Apr 22, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/2153
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Access rights lists, such as capacity or access control lists, are dynamically managed in a data processing element such as a smart card from an administrator server. To access an access rights list from the server, the list is signed in the server so that a signature can be transmitted to the card. The card compares the signature received from the server to signatures determined according to the access rights lists contained in the card and keys associated with those lists. Server access to an identified list is only authorized when it corresponds to a signature which is found among the determined signatures in the card and which is identical to the received signature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.