Samsung Electronics Co., Ltd.

Yun-Sang Oh

Kyung-im Jung

Sang-Gyoo Sim

Yeo-Jin Kim

Tae-Sung Kim

Ji-Soo Kim

Shin-Han Kim

Moon-Sang Kwon

Suk-bong Lee

Byung-Rae Lee

Sang-sin Jung

Seong Jin Choi

Jung-Hun Park

Dong-Soo Kim

Chang-Wook Moon

Tae-sung Kim

Seung-woon Lee

Jae-jin Choi

Myung-Gon Song

Kyung-Im Jung

Kyung-Im 310-2402 Jugong 3-Danji Jung

A method of transferring a rights object (RO) and an electronic device are provided. The method includes generating a secure RO by encrypting an RO including usage rights information regarding digital content and transferring the secure RO from a first device to a second device.

Method of transferring rights object and electronic device

A device and a portable storage device which are capable of transferring a rights object (RO) and a method of transferring an RO are provided. The method includes enabling a device to transmit an installation request message to a portable storage device for installing a copy of an original RO present in the device in the portable storage device, enabling the device to install the copy of the original RO in the portable storage device, and enabling the device to receive an installation response message indicating that the copy of the original RO has been successfully installed in the portable storage device from the portable storage device.

Device and portable storage device which are capable of transferring rights object, and a method of transferring rights object

A method and apparatus for transmitting rights object information between a device and a portable storage are provided. The method includes transmitting a predetermined request from the device to the portable storage, generating a current permission status format including information of a rights object designated by the request, using the portable storage, and transmitting the current permission status format from the portable storage to the device. According to the method and apparatus, overhead is reduced and information transmission speed is increased when the rights object information is transmitted between the device and the portable storage.

Method and apparatus for transmitting rights object information between device and portable storage

An apparatus and a method for using a Secure Removable Media (SRM) in Digital Rights Management (DRM) are provided. The method for using the SRM in Digital Rights Management (DRM) includes determining, at a plurality of content service providers, an SRM usage rule and providing the determination to a trust authority using an eXtensible Markup Language (XML); receiving messages comprising the SRM usage rule from the content service providers and sending the messages to an apparatus together with an electronic signature; and receiving the messages comprising the SRM usage rule and changing an operation of the apparatus according to requirements of at least one content service provider. Thus, various content business models can be realized.

Apparatus and method for using secure removable media (SRM) in digital rights management

An apparatus and method for determining contents information corresponding to a Rights Object (RO) by transmitting information on contents together when the RO is moved from a mobile device to a memory card or a smart card or when the RO is moved from the memory card or the smart card to the mobile device are provided. The apparatus includes a meta information manager for determining information on contents corresponding to the RO when the RO is moved, and for generating meta information containing the determined contents information, and a controller for providing control to transmit the RO and the meta information generated by the meta information manager to a portable storage device. Accordingly, the conventional problem can be solved in which information on contents cannot be determined by using a Contents IDentifier (CID) if the RO does not exist together with the contents.

Apparatus and method for using contents information in digital rights management

An apparatus and method are provided for securely managing security data between a host device and a secure multimedia card. A host device includes an access mode setting unit which sets an access mode for security data that is stored in a secure multimedia card, a transmitting and receiving unit which transmits an access request message that includes the set access mode, and an access information managing unit which receives, if connection between the host device and the secure multimedia card is separated, access information stored in the secure multimedia card, and compares the access information.

Apparatus and method of managing security data

A host device, a portable storage device, and a method of updating an RO stored in the portable storage device are provided. The method includes receiving a predetermined bitmap from a host device, performing a bitwise operation on the received bitmap and meta information indicating a state of the RO, and updating the meta information using a result of the bitwise operation.

Host device, portable storage device, and method for updating meta information regarding right objects stored in portable storage device

Disclosed are a method and apparatus for efficiently providing a location of a contents encryption key. A method of efficiently providing a location of a contents encryption key according to an embodiment of the present invention includes generating metadata containing information regarding a location of a contents encryption key in a rights object, and setting the generated metadata and the rights object in a portable storage device.

Method and apparatus for efficiently providing location of contents encryption key

An apparatus and method for managing a rights object by backing up and restoring the rights object between a host device and a multimedia card are provided. The apparatus includes an input unit that receives an order signal from a user, a rights-object-managing unit that determines whether the rights object can be backed up and restored based on rights object information when the order signal is input, and backs up and restores the rights object according to a result of the determination, and an information-managing unit that manages information related to movement and removal of the rights object and information on the backed up and restored rights object.

Apparatus and method for managing rights object

Provided are a digital rights management (DRM) method and apparatus, and more particularly, a DRM method and apparatus which can support different DRMs and use various digital content. The DRM method includes receiving a hello message request from a host device; comparing information included in the hello message request to information stored in advance; generating an error code when the hello message request contains unsupported information; and generating a hello message response that contains the error code.

Digital rights management method and apparatus

Provided are a method and apparatus for creating and applying a secure file identifier of a rights object by using random numbers. The apparatus includes a secure-file-identifier generating unit which creates the secure file identifier by generating a random number and combining the random number with a hash value corresponding to a rights object identifier of the file identifier list; a transmitting unit which transmits the secure file identifier to the storage device; and a receiving unit which receives a secure file identifier list for identifying the rights object from a storage device.

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Seoul, South Korea

Yun-Sang Oh