| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a key management system which can reissue key information while maintaining security, even if a master key becomes lost. <P>SOLUTION: This key management system 1 comprises: a lock mechanism part 50 which is provided in a vehicle 10 so as to lock or unlock a door of the vehicle 10; a lock driving part 53 which is provided in the vehicle 10 so as to drive the mechanism part 50; and an IC tag 40 for storing key information KI for unlocking the mechanism part 50 by the driving part 53. Additionally, the system 1 comprises: a server device 2 for issuing the key information KI; a terminal device 3 for acquiring the key information KI issued by the server device 2, so as to make the key information KI stored in the IC tag 40; and a control part 51 which is provided in the vehicle 10, so as to receive the key information KI stored in the IC tag 40, drive the driving part 53 and unlock the mechanism part 50. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
