Istituto di Scienza e Tecnologie dell'Informazione     
Chessa S., Oligeri G. INTERMEDIA - Integrated secure network multimedia service with DRM over interconnected networks. Interactive Media with Personal Networked Devices. Deliverable D5.2, 2009.
In the context of ubiquitous and pervasive computing environments, considerable efforts have been done in order to have audiovisual systems and applications converge, especially in home environments where homes can be considered as spaces of convergence, and for nomadic users with advanced mobile devices as points of convergence. The network of excellence INTERMEDIA seeks to progress beyond home and device-centric convergence towards truly user-centric convergence of multimedia, having as its long term vision "The User as the Multimedia Central", i.e. the user as the point at which services (multimedia applications) and the means for interacting with them (devices and interfaces) converge, (see following figure for the depiction of this vision). One of the biggest challenges that we have to face in the deployment of architectures in such environments is related to, on the one hand, with the security and protection of digital contents that interchanged between users of such architectures and on the other hand with the provision to the users with security mechanisms that allow them to perform secure transactions (e.g. authentication, privacy protection, secure data transfer, etc.) in those environments. Moreover intellectual property protection is a mandatory request in modern multimedia environments like the ones that are going to be deployed in the Intermedia context. Today the end-users are equipped with different types of small devices that allow them to be the digital contents creators, thus creating digital content that wish to share with third parties. In most cases, the end-users would like to have mechanisms which would give them the possibility to protect the content which have created and possibly to set their own usage rights over it, thus specifying towards third users how their digital content shall be used. The main objective of this deliverable is to develop integrated network architecture with security and DRM for interconnected home and body area networks, and to specify appropriate interfaces such that the security and DRM solution will function over different operating platforms. Moreover, it shall initiate research for the efficient deployment of security and DRM in embedded systems (with limited resources). Furthermore, our architecture shall incorporate state-of-the-art technologies, methodologies and standardization in the context of security and DRM aspects. We have achieved the pre-mentioned through a series of tasks: task 5.1.1 - Design of an integrated secure network architecture as it will be incorporated into the demonstrators. Specifications of system interfaces in order to integrate security and DRM solutions, according to MPEG-21 standard, in services and applications of the demonstrators; task 5.1.2 - Further utilization of MPEG-21 primitives in the context of security and DRM, like MPEG-21 IPMP Tools in order to integrate DRM solutions in services and applications that target delivery of protected content that resides into the home network of the user by developing architectures with security and DRM as inherent requirements leading to secure solutions that increase the trust placed by content providers on the system; task 5.2.1 - Enrichment of our cryptographic module "iSecFunc", which adheres to the state-of-the-art technologies with more required security functions and implementation of security functionalities in highly constrained embedded platforms; task 5.2.2 - Further development of the DRM client, in order to enhance and enforce the license that accompanies the content. Moreover, the DRM client shall initiate the procedure of digital contents' rendering, if this is allowed by the relevant license; finally, in task 5.3 - Investigation of integration techniques so that the implemented prototype modules will be seamlessly incorporated into the demonstrators and continuous work on algorithms in order to embed authentication information in the video stream.
Subject Dynamic Networking
Context-aware Network
C.2 Computer-Communication Networks

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