Being the intelligence die secret key device which the intelligence die secret

摘要

PROBLEM TO BE SOLVED: To provide an intelligent key device with an external storage and the using method thereof, so as to solve the problem of the inconvenient using method that the prior art could not deal with.;SOLUTION: The device consists of a micro-controller unit and an off-chip mass storage and the micro-controller unit includes a host interface module, CPU, key data storage module, firmware program storage module and off-chip mass storage interface module. The present invention also provides a using method of the intelligent key device with external storage as well, which including: the intelligent key device builds connection to the host computer and reports itself as a mass storage device; the host starts the application program; and a user processes and manages information. The usability of the key device is improved by adding off-chip mass storage in the intelligent key device, which makes the user use and manage the files in the intelligent key device easily as well.;COPYRIGHT: (C)2008,JPO&INPIT