| 摘要 |
Herein described is a portable data storage device (1) comprising at least one mass memory (2) and a connection interface (4) with the outside. The portable data storage device (1) further comprises at least one microprocessor (3) connected to the mass memory (2) for the management of communications with the mass memory (2) or with at least a protected portion thereof and to the connection interface (4) as well as at least one access authorization circuit (5) in turn connected to the microprocessor (3) and associated with an access key of the portable data storage device (1), the microprocessor (3) also comprising a program for the protection of data, data transmission to and from the mass memory (2) or its protected portion being under the total control of the microprocessor (3), in turn activated through the access authorization circuit (5) and authorized by the program for the protection of data so as to make the portable data storage device (1) normally available for reading and/or writing. |
