DIGITAL RIGHTS MANAGEMENT STRUCTURE, PORTABLE STORAGE DEVICE, AND CONTENTS MANAGEMENT METHOD USING THE PORTABLE STORAGE DEVICE

摘要

A digital rights management (DRM) structure, a portable storage device, and a contents management method using the portable storage device are provided to facilitate the move of a rights object or encrypted content. The digital rights management structure includes a security section comprising private key information and cryptographic method which are needed to decrypt information that has been encrypted by a host device, a restriction section comprising authentication information needed for authentication with the host device and rights object information regarding content, and a data section comprising encrypted content which the host device attempts accessing.