Information processing device and information processing system
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United States of America Patent
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May 15, 2012
Grant Date -
Aug 7, 2008
app pub date -
Jan 30, 2008
filing date -
Feb 2, 2007
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An information processing device is provided with a tamper-proof IC chip that includes a storage area and that can process data from the storage area, and with a storage module that includes a storage area external to the IC chip. First key data stored in the IC chip storage area and second key data stored in the storage module storage area are used for two-way authentication between the IC chip and the storage module and for encrypting and decrypting data in the storage module storage area. The IC chip storage area includes a cache area to temporarily store data. The IC chip, following a request by an external device, uses the key data for two-way authentication with the storage module, securely reads data to satisfy the request from the storage module storage area into the IC chip cache area, and processes the data read into the cache area.
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