Samsung Electronics Co., Ltd.

Byung Rae Lee

Kyung Keun Lee

Sung Oh Hwang

Bo Gyeong Kang

Jeedigunta Venkateswar

Kwan Hyuk Im

Rajavelsamy R

Seleznev Sergey

Seong Hun Bang

Pratyusha Rajendran

Rajavelsamy Rajadurai

A security domain management method and apparatus for managing at least one security domain in a trusted execution environment (TEE) including at least one security domain is provided. The method includes obtaining information related to an event for an arbitrary security domain when the event for the arbitrary security domain is generated; and transmitting the information related to the event to at least one other security domain, wherein the information related to the event is sent via a TEE kernel.

Method and apparatus for security domain management in trusted execution environment

A rights objects acquisition method of a mobile terminal in a digital right management system is provided for acquiring multiple rights objects in a composite manner. An objects right acquisition method of a mobile terminal may include generating, in response to a group rights object (RO) acquisition command, a group rights object acquisition request with content identifiers assigned to individual contents corresponding to the rights objects indicated by the group rights object acquisition command, sending the group rights object acquisition request to a rights issuer; and receiving an group rights object acquisition response containing rights object identifiers assigned to the rights objects from the rights issuer. The present invention streamlines the RO acquisition process, especially when acquiring multiple ROs.

Rights object acquisition method of mobile terminal in digital right management system

A license consignment method and system for a portable device playing a right-protected content with a license is provided for improving utilization reliability and manageability of a license by enabling a license server to manage the license consigned by the portable device. The method includes selecting a license to be consigned to a license server, transmitting the license server license information corresponding to the selected license, and transmitting, when the license is not downloaded in a certain time, a download trigger message to the portable device.

License consignment method and system for portable device

A method and apparatus for a digital broadcasting service may allow direct and real-time control of a digital broadcasting receiver. A service providing server inserts a content control access criteria descriptor into a transport stream and transmits content and the content control access criteria descriptor to the receiver through the transport stream. The receiver receives the transport stream and processes the content according to the content control access criteria descriptor, which can contain lock control information and coupon provision information. The lock control information indicates whether a control function of the receiver is locked or unlocked for specific content. The coupon provision information indicates whether a coupon available for the purchase of pay content is granted depending on execution of specific content.

Method and apparatus for digital broadcasting service

The present invention relates to a method and system for providing a digital content service that provides packaging content consisting of digital rights management (DRM) content and advertisement content, and is able to use the DRM content for free by watching or listening to the advertisement content, including: generating packaging content consisting of pilot content and target content, which has been encrypted using an encryption key of the pilot content, and providing the packaging content to a portable terminal; and obtaining a decryption key for the target content through playing the pilot content of the packaging content, and playing the target content by the decryption key, by the portable terminal.

System and method for providing digital contents service

A method and system for registration with a broadcast server is provided. A request from a smartcard terminal for registration is received and the smartcard terminal is authenticated based on the request. Further, A specific key material, Ks_NAF, is generated in response to the request. At least one of registering the smartcard terminal with the Internet Protocol (IP) multimedia subsystem (IMS) server and with the broadcast server simultaneously, and registering the smartcard terminal with the IMS server and subsequently with the broadcast server through the IMS server, is performed. At least one of notifying the IMS server of status of the registration by the broadcast server, and notifying the broadcast server of the status of the registration by the IMS server, is performed. The system includes a smartcard terminal for sending a request for registration, a key generator for generating a Ks_NAF, and an IMS server and a broadcast server for authentication and security association establishment with the smartcard terminal using the Ks_NAF.

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Seoul, South Korea

Byung Rae Lee