| 摘要 |
A method for allowing or disallowing host access to data stored in a portable device is discussed. The method uses a password and network server. Access to the data is allowed if the password is correct and messages received from the server are positive. If the portable device receives a negative message from the server, then access is disallowed, even if the password is correct. In another embodiment of the invention, a password is provided to the portable device; the password is encrypted in the portable device, and sent to the network server. Upon requests for data from the host computer, the portable device encrypts the data and sends the encrypted data to the host computer. A network server receives an encryption of the password from the portable device, and if the password is correct, then the network server sends the decryption key for the data to the host computer.
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