摘要:
Provided are domain contexts indicating user and device based domain systems for being applied to a new digital content protection/management system, and management methods thereof. A concept of “domain” is introduced in the present invention so that various business models can be obtained in accordance with content use of one home or small-sized group. The domain refers to as a group of user and device SAV and PAV indicating a context for being applied to the domain system includes: a domain identifier for specifying a domain as a region containing at least one content execution device and at least one content user; domain authentication information for guaranteeing authenticity of the domain; a user list containing information of users belonging to the domain; and a device list containing devices belonging to the domain.
摘要:
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.
摘要:
Provided is a terminal in support of compatibility for Digital Rights Management (DRM) technology. According to the present invention, a method of reproducing digital contents with DRM tool at a user terminal includes the steps of: obtaining information about a DRM processor from the digital contents, selecting a DRM processor according to the obtained information, and installing the selected DRM processor; initializing the DRM processor through exchanging messages between the user terminal and the DRM processor; and transforming the digital contents with the DRM tool to original digital contents by activating a DRM tool using the initialized DRM processor and reproducing the original digital contents.
摘要:
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.
摘要:
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.
摘要:
Provided are a digital broadcasting receiver and method of broadcast content protection. The digital broadcasting receiver comprises a platform which stores received broadcast data, middleware which comprises an application manager managing various applications so that broadcast content corresponding to the received broadcast data is used according to a consumption policy, a platform interface unit which acts as an interface between the platform and the middleware, and a middleware interface unit which acts as an interface between the various applications and the middleware. According to the method, various broadcast content protection and management policies can be accepted in various digital broadcasting receivers, each having different hardware and software structures.
摘要:
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.
摘要:
Provided are a digital broadcasting receiver and method of broadcast content protection. The digital broadcasting receiver comprises a platform which stores received broadcast data, middleware which comprises an application manager managing various applications so that broadcast content corresponding to the received broadcast data is used according to a consumption policy, a platform interface unit which acts as an interface between the platform and the middleware, and a middleware interface unit which acts as an interface between the various applications and the middleware. According to the method, various broadcast content protection and management policies can be accepted in various digital broadcasting receivers, each having different hardware and software structures.
摘要:
Provided is a technology for controlling partial avoidance or simultaneous access to multimedia contents. This research provides a multimedia contents consuming apparatus, which includes: a receiver for receiving a multimedia content and license data representing a condition for prohibiting partial avoidance of the multimedia content; a license analyzer for receiving the license data from the receiver, analyzes the license condition for the multimedia content, and creating a control signal for partial avoidance; and a controller for controlling avoidance for a predetermined part of the multimedia content according to the control signal.
摘要:
Provided are domain contexts indicating user and device based domain systems for being applied to a new digital content protection/management system, and management methods thereof. A concept of “domain” is introduced in the present invention so that various business models can be obtained in accordance with content use of one home or small-sized group. The domain refers to as a group of user and device SAV and PAV indicating a context for being applied to the domain system includes: a domain identifier for specifying a domain as a region containing at least one content execution device and at least one content user; domain authentication information for guaranteeing authenticity of the domain; a user list containing information of users belonging to the domain; and a device list containing devices belonging to the domain.