Data recording device, and method of processing data recording device
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United States of America Patent
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Sep 30, 2014
Grant Date -
Feb 13, 2014
app pub date -
Mar 22, 2012
filing date -
Apr 28, 2011
priority date (Note) -
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Abstract
A controller is provided with a controller key and a first controller identification information unique to the controller. The controller generates a controller unique key unique to a respective controller based on the controller key and the first controller identification information, and a second controller identification information based on the first controller identification information. A decryptor decrypts the encrypted medium device key using the controller unique key to obtain a medium device key. An authentication/key exchange process unit performs authentication/key exchange process with the host device through an interface unit using the medium device key, the medium device key certificate and the second controller identification information to establish a secure channel.
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