Samsung Electronics Co., Ltd.

Mithun Manjnath Nayak

Deepak Kumar

Chunduri Bhanu Teja

A method and apparatus which can reduce the communication time that occurs due to transmission of an encrypted content, when a Digital Rights Management (DRM) agent and a rendering application are implemented in different devices respectively, is provided. A method of obtaining content information in an environment where a DRM agent and a rendering application are separated from each other, includes transmitting, by a consumer electronics (CE) device comprising the rendering application, first N bytes of the content to a portable Digital Rights Management (PDRM) device comprising the DRM agent, and obtaining, by the PDRM device, information about the content by using a cryptographic hash with respect to the first N bytes, and transmitting the obtained information to the CE device.

Method and apparatus for getting content information when DRM agent and rendering application are implemented on separate devices

A method and apparatus for authenticity and origin of Digital data such as recorded voice samples, video clips or still picture images etc. is provided. The method makes uses of the Trusted Computing principles to provide a secure, tamper detectable solution comprising of both software and hardware such that it can be verified without debate on its authenticity. The method comprises extracting reproduction avoidance key information and log information for captured data from stored information when verification of the captured data is requested, calculating reproduction avoidance key information using the extracted log information, comparing the extracted reproduction avoidance key information with the calculated reproduction avoidance key information and determining that the captured data has not been tampered, if the reproduction avoidance key informations are matched.

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Karnatak, India

Mithun Manjnath Nayak