PORTABLE USB SECURITY DEVICE USING AN INTEGRATED CONTROL CHIP HAVING A USER AUTHENTICATION FUNCTION AND AN ENCODING/DECODING FUNCTION, PARTICULARLY FOR REDUCING THE NUMBER OF THE CHIPS NECESSARY FOR IMPLEMENTING THE PORTABLE USB SECURITY DEVICE

摘要

PURPOSE: A portable USB security device using an integrated control chip having a user authentication function and an encoding/decoding function is provided to reduce the number of the chips necessary for implementing the portable USB security device by using an integrated control chip for connecting a host computer with a smart card IC and a memory.;CONSTITUTION: A USB(Universal Serial Bus) port(110) connects a host computer(200) to an integrated control chip(120) and supplies power to a portable USB security device. A smart card IC(Integrated Circuit)(140) is connected to the host computer through the integrated control chip and comprises a key generator for generating an encoding/decoding key, a storage unit for storing the encoding/decoding key and a smart card IC control unit for transferring the encoding/decoding key to an integrated control chip control unit.;COPYRIGHT KIPO 2010