Electronic wallet system with secure inter-purses operations
US7233926B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2001 |
| Grant date | Jun 19, 2007 |
| Priority date | — |
| Expiry date | Oct 1, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06Q20/4012
- WIPO fieldIT methods for management
- WIPO sectorElectrical engineering
Abstract
The electronic wallet system comprises a plurality of devices interconnected through a local network and capable of conducting electronic business transactions on an open network. Each device contains a smart card reader. A plurality of smart cards represent electronic purses able to contain electronic money. One of the devices contains an entity, the server, which contains a list of data entries, each entry corresponding to a purse liable to receive electronic money, contained in tokens, from other purses of the system. The tokens transferred between purses are stored temporally by the server. In order to improve the security of the transactions, the messages which are exchanged between the devices and/or the smart cards during token transfer operations are protected by secret keys which are only stored in the smart cards of the system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.