Abstract: Provided is an apparatus and method for creating device association/control information for realistic media representation. The device includes a media analyzer, a device information creator, a device parameter creator, a device attribute database, a device control information creator, and a device control stream creator. The media analyzer analyzes media to determine control values and control times for control parameters of respective devices to be associated for media reproduction. The device information creator creates device information by searching peripheral devices connected to a media reproduction device. The device parameter creator creates device parameter information by extracting controllable factors for the respective devices. The device attribute database stores the device information and the device parameter information. The device control information creator creates device control information including control values and control times for the respective device parameters.

Abstract: The present invention particularly relates to a digital content providing service method and a content execution device for the same, for maximizing user convenience and maintaining a sufficient level of security using a smart card. The inventive content execution device includes an independent authentication unit for storing a tool necessary for executing content; an authentication support module for providing a data communication channel between the smart card and an external broadcasting server; a tool agent for calling the tool stored in the independent authentication unit; and a content execution unit for executing content data received from the external broadcasting server. The content execution device included in a content authority management system of the present invention employs the smart card for user authentication and/or content playing tool management.

Abstract: Provided is a contents protection and management system including: a contents processing server for providing a service subscriber with contents and producing information for protection and management of the content; a DRM tool server for managing tools used in the contents processing server and the subscriber terminal to process the content; and a license server for managing the subscriber's right to the content.

Abstract: A tool pack structure includes: a signature value for guaranteeing authenticity of a tool pack; a tool pack identifier for identifying the tool pack; each unit tool pack provided according to a hardware platform; and tool pack data containing initial values assigned when each unit tool pack is used. Each tool pack includes platform information indicating information about hardware in which the tool pack may be used; a tool agent that is a program activated for content execution; and a tool group including at least one tool program activated by the tool pack agent for processing content according to a predetermined rule. A tool agent leaves operation of a protection tool group used by a specific service provider entirely to a tool agent (execution code) provided together with the tool group by service providers. Accordingly, information about the used tools does not have to be disclosed to the public. Since a user terminal simply calls each tool agent, it can support interoperability with other DRM techniques.

Abstract: A license data structure and distribution (issuance) method are provided, that can accommodate one domain including multiple content playback devices and/or users. A method for creating license data in the invention includes the steps of: creating raw license data to be issued; firstly encrypting the raw license data with an encryption key of a user and/or device; and encrypting the data encrypted with the user and/or device public key using a public key of a home domain. Also, a license data structure of the invention includes an encrypted license block created by firstly encrypting raw license data containing data for playing content with a distributed encryption key of a user and/or device, and then secondly encrypting this with a distributed encryption key of a home domain; and TAG information necessary for decryption of a second encryption capsule.

Abstract: Provided is a broadcasting server system that can have many protection and management tools applied thereto, other than conventional access control tools and supplies information on the applied protection and management tools, information on the control over the use of the contents, and information on the purchase of the contents, an operation method thereof, and a computer-readable recording medium for recording a program that implements the method. The broadcasting server system includes: a control unit for generating access control information and a control word based on subscriber information; an additional data generation unit; a watermarking unit; a media encoding unit; an encrypting unit; a multiplexing unit; a re-multiplexing unit; and a scrambling unit.

Abstract: Provided is an apparatus for controlling storage and playback of digital broadcasting contents. The apparatus can control a broadcasting content to be recorded and stored, temporarily stored, and played back while protecting and managing it securely. The apparatus of the present research includes: a control information providing unit for generating control information for recording storage, temporary storage, and playback of a broadcasting content, using the control information as watermarking information, multiplexing and scrambling the broadcasting content including the control information, and outputting a scrambled transport; and a storing and playback unit for storing the broadcasting content by using the control information, comparing the control information stored together with the broadcasting content with control information added as watermarks, and determining whether to play back the broadcasting content.