Mechanism for facilitating secure storage and retrieval of information on a smart card by an internet service provider using various network computer client devices
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 31, 2000
Grant Date -
N/A
app pub date -
May 5, 1998
filing date -
May 5, 1998
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A network computer client device (NC) maintains a root internet service provider (ISP) certificate which includes the ISP's public key and which is digitally signed by a root authority using the root authority's private key. The NC also maintains a root public key. When an ISP desires to write onto the smart card inserted into an NC, it sends ISP account information to be written including a digital signature portion created with the ISP's private key to the NC. The NC performs a cryptographic verification of the ISP account information using the ISP's public key found in the root ISP certificate. If this verification is successful, the NC writes the ISP account information to the smart card. If this verification fails, the ISP account information is not written to the smart card. When an ISP attempts to read ISP account information from a smart card inserted into an NC, the NC first authenticates the ISP The NC then reads the ISP account information including the digital signature portion from the smart card. The NC performs a cryptographic verification of the ISP account information using the ISP's public key found in the root ISP certificate. If this verification is successful, the NC transmits the ISP account information to the ISP. If this verification fails, the ISP account information is not transmitted.
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