Samsung Electronics Co., Ltd.

Sergey Nikolayevich Seleznev

Jae-Yeon Song

Byung-Rae Lee

Sung-oh Hwang

Kook-Heui Lee

Sung-Oh Hwang

Bo-Gyeong Kang

A method and device for enforcing advertisement viewing in the device are provided. When there is a play request for contents, it is determined whether there is a common Rights Object (RO) linked with an RO of the requested contents. When there is a common RO, information about consumption of advertisements on a plurality of contents is obtained from the common RO. At least one advertisement linked with the requested contents is played on the basis of the obtained information.

Device and method for enforcing advertisement viewing

A system and method for managing an encryption key are provided, which include receiving, from a DRM agent, an RO request message for receiving content; generating a KSP including a first key and a second key; applying hash chains with different directions to the first key and to the second key to generate an encryption key for the content; and transmitting, to the DRM agent, a response message including a context element having an identifier of the content and a key information element. The key information element includes a first encryption key element; a rights encryption key information element; and an encryption data element.

Method and system for managing an encryption key for a broadcasting service

A method for providing a Digital Rights Management (DRM) service in a network is provided. The method includes receiving a request message for device registration, which includes DRM-related identification information, from a user device; and registering registration information of the user device, which is distinguished according to a corresponding user account and according to a corresponding DRM solution, based on the DRM-related identification information.

Method and apparatus for providing cloud-based digital rights management service and system thereof

A method for protecting personal information in Audience Measurement (AM) of a digital broadcasting system is provided, including inserting an indicator, which notifies whether a consumption pattern of a service or content provided by a service provider can be measured, into a service guide, to which the information of the service or content is provided by a service provider; and determining whether the AM can be executed for the service or content in accordance with the indicator when the AM function is implemented in a terminal.

Method for protecting personal information in audience measurement of digital broadcasting system

A method and apparatus for managing tokens for Digital Rights Management (DRM) in a terminal are provided. In the method, at least one token is acquired from a Rights Issuer (RI), and the token is moved to a Secure Removable Media (SRM) through a token move request message. The token can be shared by several terminals.

Method and apparatus for managing tokens for digital rights management

A method and apparatus for providing a broadcast service in a communication system is provided. The method includes generating a key pair comprising a first key and a second key, generating at least one of forward encryption keys by applying a forward hash chain to the first key, generating at least one of reverse encryption keys by applying a reverse hash chain to the second key, generating at least one of encryption keys using the at least one of forward encryption keys and the at least one of reverse encryption keys, encrypting broadcast service data using the at least one of encryption keys, and broadcasting the encrypted broadcast service data.

Method and apparatus for providing broadcast service using encryption key in a communication system

A method and a system for distributing an encryption key for service protection and content protection in a mobile broadcasting system are provided where a network generates a first encryption key when a broadcasting service is first provided to the terminal, and transmits a long term key message including the generated first encryption key to the terminal. Also, the network generates a second encryption key before the lifetime of a first access value pair expires, and transmits a long term key message including the generated second encryption key to the terminal.

Encryption key distribution method in mobile broadcasting system and system for the same

A method and apparatus for reporting a consumption time of a service or content in Audience Measurement (AM), which measures a user consumption pattern of the service or the content is provided. A method for reporting a consumption time of the service or the content in a terminal of a content transmission system includes receiving an encryption key for encrypting the service or the content from a broadcasting server and transmitting a message requesting interpretation of the encryption key to a smart card. The message includes consumption time information of the service or the content.

Method and apparatus for reporting audience measurement in content transmission system

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.

Method and apparatus for controlling content playback in content delivery system

Methods and apparatus are provided for providing a DRM service by a user terminal apparatus consuming DRM content in a service environment that provides the DRM content using a plurality of incompatible DRM systems. A license corresponding to the DRM content is acquired from a service providing apparatus that provides the DRM content. It is determined whether the license is a common license having a common DRM interface format. The common DRM interface format of the common license is converted to a format of a first DRM system installed in the user terminal apparatus, when the license is the common license. The license having the format of the first DRM system is applied in reproducing the DRM content. The common license is provided from the service providing apparatus to the user terminal apparatus through a common DRM interface when the service providing apparatus does not support the first DRM system.

Method and apparatus for providing DRM service

An encryption key distribution method for service and content protection in a mobile broadcasting system, and a system for the same which includes generating, by a network, a first encryption key when the broadcast service is first provided; transmitting a generalized rights object message, which includes identification information for identifying the generated first encryption key, to the terminal; generating a second encryption key before the lifetime of the first encryption key expires; and transmitting the generalized rights object message, which includes identification information for identifying the generated second encryption key, to the terminal.

Encryption key distribution method in mobile broadcasting system, and system for the same

A method and apparatus for providing a broadcast service in a communication system is provided. The method includes creating a seed key pair including a first key and a second key, transmitting the seed key pair to a terminal to which the broadcast service is to be provided, creating a certain number of encryption keys using the seed key pair, the certain number corresponding to a lifetime of the seed key pair, encrypting broadcast service data for the lifetime using the encryption keys, and broadcasting the encrypted broadcast service data.

Growing community of inventors

Suwon-si, South Korea

Sergey Nikolayevich Seleznev