Abstract:
A Digital Rights Management (DRM) service system providing digital content to which DRM technology is applied, when one or more DRM content is provided to a client device, download information for a DRM module capable of installing a DRM agent corresponding to a DRM system applied to the DRM content is provided together, making it possible for the client device to download the DRM module based on the download information, install the DRM agent, and use the DRM content.
Abstract:
According to the present invention, a method for the authentication, by a host device, of a storage device having a plurality of unit storage areas comprises the following steps: acquiring information on the distribution of locations of reference defective areas to be used for uniquely identifying the storage device; sampling the unit storage areas of the storage device; identifying the distribution of locations of physically defective areas among the sampled areas; determining the similarity between the acquired distribution of locations and the identified distribution of locations; and authenticating the storage device in accordance with the result of the determination.
Abstract:
A method and apparatus for using a non-volatile storage device includes reading device identification information from the non-volatile storage device, application identification information corresponding to a content application related to a type of content to be protected or utilized among a plurality of content applications is acquired, usage identification information is generated using the device identification information and the application identification information, and protecting or utilizing content using the usage identification information.
Abstract:
A method and apparatus are provided for providing a DRM service in a user terminal apparatus providing an adaptive streaming service. Content protection information is received that includes information about multiple DRM systems applied to specific content provided using the adaptive streaming service. A specific DRM system is selected from among the multiple DRM systems. A license corresponding to the specific DRM system is acquired. The license includes an encryption key capable of decrypting the specific content. The specific content is decrypted using the acquired license.
Abstract:
An apparatus and method for providing a service to heterogeneous service terminals without modifying a security framework are provided, in which a gateway that controls a first service terminal transmits a right delegation request to a server in order to provide the service to a second service terminal as well, and upon receipt of a service right verification request from the second service terminal after receiving a right delegation certificate from the server, the gateway transmits a service right verification response including the right delegation certificate to the second service terminal.
Abstract:
Disclosed is a DRM Proxy Server Agent (DRM PSA), which converts a format of a DRM system into a format recognizable in a user terminal when the user terminal and a service provider do not use the same type of DRM system. The user terminal downloads the DRM PSA from the service provider and installs the DRM PSA in the user terminal. Through the download and installation of the DRM PSA, the user terminal can use various DRM systems provided by the service provider regardless of the type of DRM system installed in the user terminal.
Abstract:
A non-volatile memory for anti-cloning is provided. The non-volatile memory includes an Enhanced Media Identification (EMID) area, which is located in a specific area of the non-volatile memory, and stores an EMID for identification of the non-volatile memory; and an EMID encoder for modifying the EMID by a preset operation with an arbitrary value.
Abstract:
A method is provided for controlling content playback by a terminal in a content delivery system. The method includes receiving streaming content from a service provider, the streaming content including zone information of each zone and an associated identifier of each zone for identifying a terminal's operation mode, determining the terminal's operation mode depending on the identifier, and controlling playback of the streaming content in a zone corresponding to the zone information according to the determined operation mode.
Abstract:
An authentication method of a storage device includes requesting an EID (Encoded IDentifer) to the storage device by an authentication device for authenticating the storage device, receiving the EID by the authentication device, restoring original ID information by decoding the received EID, and verifying individual ID information corresponding to use of the storage device included in ID information by using ID authentication information received from the storage device, wherein the ID information includes multiple pieces of individual ID information corresponding to the use of the storage device.
Abstract:
The present invention relates to a Digital Right Management (DRM) service providing device and method. The device includes a Media Presentation Description (MPD) component unit for determining a DRM system required for each representation of content, which is provided through an adaptive streaming service; classifying the representations into at least one group according to a predetermined standard, and generating MPD that includes representation group information representing the classified groups and content protection information having information on DRM systems corresponding to the representation group information; and a communication unit for transmitting the MPD information to a user terminal that receives the content. Thus, the present invention defines groups on the basis of predetermined criteria for representations during an adaptive streaming service, and represents a plurality of systems required for a corresponding group as a necessary DRM system without repetitive DRM system expressions. Therefore, DRM service may be efficiently provided. Additionally, different security requirements according to various standards such as content type, content quality, content playing medium, etc., may be satisfied.