Electronic wallet system with secure inter-purses operations
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 19, 2007
Grant Date -
Oct 25, 2001
app pub date -
Mar 1, 2001
filing date -
Mar 7, 2000
priority date (Note) -
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status (Latency Note)
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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.
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