ENCRYPTION METHOD FOR DIGITAL DATA MEMORY CARD AND ASSEMBLY FOR PERFORMING THE SAME

摘要

Embodiments of a portable data storage device and a method of protecting data stored in the portable data storage device are provided. In one embodiment, the portable data storage device includes a device identification unique to the portable data storage device, a rights object containing information indicative of access rights and a verification identification, a memory to store the device identification and the verification identification, and controller logic. The memory is partitioned into a plurality of areas of memory, including: a first area as a protection area to store an instruction code, a second area as a partition table area to store a partition table, and a third area as a file area to store data files. In response to a request from a client external to the portable data storage device, the controller logic compares the verification identification with the device identification to allow the client to access of the data files if the verification identification matches the device identification.

主权项

1. A portable data storage device comprising:
a device identification unique to the portable data storage device; a rights object containing information indicative of access rights to audio/visual data and a verification identification; a memory in which the device identification and the rights object are stored, the memory partitioned into a plurality of areas of memory including:
a first area as a protection area to store an instruction code,a second area as a partition table area to store a partition table, anda third area as a file area to store data files; and controller logic configured to compare the verification identification with the device identification in response to a request from a client external to the portable data storage device to allow the client to access of the data files if the verification identification matches the device identification through interaction with an application program on said external client.