Authentication method and system using IC card
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Jun 13, 2000
Grant Date -
N/A
app pub date -
Aug 29, 1997
filing date -
Sep 3, 1996
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method and system for authenticating between a user or client and a network access entity such as a server or another client using an IC card. The method includes a step of executing an initial authentication using the IC card when the user first communicates with the network access entity, a step of commonly holding authentication information in both the user and the network access entity if the initial authentication achieves success, and a step of executing a re-authentication using the commonly held authentication information without using the IC card when the user communicates again with the same network access entity within a predetermined period of time after the last authentication.
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