System and method for authorizing software use
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United States of America Patent
Stats
-
N/A
Issued Date -
Jun 23, 2005
app pub date -
Dec 19, 2003
filing date -
Dec 19, 2003
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A software vendor freely distributes software to users and issues smart cards to be used with the software. The smart card includes at least one software module missing from the software package and a list of allowed functionality dictating the capabilities of the software package. A user authenticates, using, e.g., public key cryptography, the smart card, which authorizes the use of the software. Once authorized, the module missing from the software is reunited with the rest of the software package. The software can be used limited to the allowed functionality included with the card. If more or different functionality is needed, the user can purchase another card authorizing such additional functionality, and then transfer the new functionality to the old smart card.
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