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We propose a DRM oriented authenticated group key agreement scheme from multilinear forms. The new scheme is ID-based, but need not trusted PKG and random oracle model, which effectively solves the key escrow problem. Our scheme can be used to replace the keys distribution scheme of existing DRM system, which avoids the trouble to build trusted channels between each pairs of users. The ID-based cryptography...
In this paper we propose SEMAFOR, a Web based platform for protecting adaptive multimedia content delivery in heterogeneous environments. It aims to deliver an end-to-end authenticity of original content exchanged in a heterogeneous network while allowing content adaptation by intermediary proxies between the content transmitter and the final users. Adaptation and authentication management are done...
The heterogeneity of current terminals and networks leads to data transmission disturbances, particularly with multimedia flows. Dynamic adaptation is a de facto solution which enables users to exchange any data type in an optimal way, in spite of various networks, terminals, applications, needs and preferences. However content authentication is more complex since it may be adapted by intermediate...
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