Samsung Electronics Co., Ltd.

Kyung-im Jung

Yun-Sang Oh

Sang-Gyoo Sim

Tae-Sung Kim

Ji-Soo Kim

Shin-Han Kim

Yeo-Jin Kim

Byung-Rae Lee

Moon-Sang Kwon

Suk-bong Lee

Myung-June Jung

Hyun-Jin Choi

Joong-Chul Yoon

Sang-sin Jung

Jae-Won Lee

Young-suk Jang

Jae-jin Choi

Sun-Jae Lee

Kiran Pal Sagoo

Eok-soo Shim

Seung-chul Chae

Seung-Chul Chae

Hong-young Jeon

Hyun-jin Choi

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 includes an authentication unit that issues disposable authentication information to a mobile device which stores a rights object; a receiver that receives a request for remote authentication from an unauthorized device; and a transmitter that transmits a data that approves the remote authentication of the unauthorized device. The data that approves the remote authentication is transmitted to the mobile device via the unauthorized device, a disposable rights object, which is converted from the rights object for a temporary use of content, is transmitted to the unauthorized device according to a result of determining the data, and the mobile device and the unauthorized device are connected via a network.

Method and apparatus for roaming digital rights management content in device

An apparatus and method is provided for digital rights management. The method for digital rights management includes receiving encrypted content and a rights object representing use rights of the encrypted content, receiving a software module managing the rights object, and generating a new rights object using the software module.

Apparatus and method for digital rights management

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 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 device for using information on malicious application behaviors is provided. The device includes a capability-monitoring unit that monitors application capabilities, a behavior-monitoring unit that monitors application behaviors, an mBDL-generating unit that generates a document in a formal language specifying the application capabilities and the application behaviors, and a controlling unit that controls execution of application using the formal language.

Apparatus and method for using information on malicious application behaviors among devices

A method and apparatus for managing digital rights using a portable storage device are provided. The method includes a device performing primary authentication together with a license provider and establishing primary security association, the device performing secondary authentication together with the portable storage device and establishing secondary security association, receiving a license from the license provider, and transmitting the license to the portable storage device.

Method and apparatus for managing digital rights using portable storage device

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

Provided are an apparatus and method of measuring integrity, in which unnecessary memory loading of an object for measuring integrity is avoided. The apparatus includes a mapping module loading at least one second object, among a plurality of second objects divided from a first object in accordance with an allocation unit of a memory, into the memory, a memory module storing a hash value of the divided second object, and a measurement module measuring integrity of the first object by comparing a hash value of the loaded at least one second object with the hash value stored in the memory module.

Apparatus and method of measuring integrity

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

A method of managing the digital rights of a remote device is disclosed. The method includes receiving a warrant including information that the use of content is allowed, issued from a main device having the replay right for the content, transmitting the warrant to a service-providing device, and receiving the content provided by the service-providing device.

Method and apparatus for digital rights management

For digital rights management (DRM), a method for performing authentication between a device and a portable storage, which is performed by the device, includes transmitting a first key to the portable storage, receiving a third key and a first encrypted random number obtained by encrypting a first random number using the first key from the portable storage and decrypting the first encrypted random number using a second key related with the first key, generating a second encrypted random number by encrypting a second random number using the third key and transmitting the second encrypted random number to the portable storage, and generating a session key using the first random number and the second random number. The technique guarantees secure authentication between the device and the portable storage for DRM.

Growing community of inventors

Seongnam-si, South Korea

Kyung-im Jung