THIN CLIENT SYSTEM, SCREEN LOCK CONTROL METHOD, CLIENT TERMINAL, AND PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a thin client system capable of easily performing screen lock and screen lock release.

SOLUTION: A client terminal 10 reads out and starts up a thin client OS stored in a mounted USB device 20. When authentication is successful with a VPN server 50 and an integrity verification server 60, the client terminal 10 reads out a device ID stored in the USB device 20 and sends it to the integrity verification server 60 to acquire a user ID associated with the device ID that is managed by the server. The client terminal 10 performs verification of whether a unique ID stored in an IC card 31 that is read by an IC card reader/writer 30 is matched with the user ID acquired from the integrity verification server 60. The client terminal 10 performs control so that a screen lock is released, when the user ID and the unique ID are matched as the verification result.

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