| 摘要 |
A security system to prevent unauthorized use of a computing device (10) comprises a key device (20) carrying an key identification. Memory means are installed in said computing device for storing a validation record. An interface (11,21) is provided to connect said key device with said computing device, rendering a pathway to exchange said key identification with said computing device. The computing device is loaded with a program to validate said key identification which is embedded in said key device using said validation record. If said key identification and said validation record do not match use of the computing device is inhibited. The key device comprises programmable memory means to store further key information. The computer program is capable of accessing said further key information upon connection of the key device with the computing device. Said further key information enables the computer program to automatically add a validation record associated with said key device and to grant privileges to the key device depending on the contents of said further key information. <IMAGE> |
