Lista de Projetos

O objectivo inicial desta pesquisa era o de analisar a forma como a sobreposição das relações familiares e económicas que se verifica no contexto destes dois universos sociais – empresas e famílias – cria, por um lado, condições para a formação de relações familiares específicas e, por outro, promove o desenvolvimento de estruturas organizacionais próprias das grandes empresas familiares.      

Participation in the development of the MPEG-4 standard.

Open Kernel for Access to Protected Interoperable interactive services –FP4 - ACTS AC051 Objective The main objective of the OKAPI project is to describe and to settle the environment for the implementation of open, interoperable and equitable conditional access systems.In an equitable approach the management of the scrambling keys is achieved through the use of Trusted Third Parties (TTPs).The proposed solution relies on public key cryptography and on secure software downloading into security modules.Several very high scale projects, i.e. DAVIC and DVB, aim at the interoperability for conditional access systems. Regarding these projects, the OKAPI project position could be summarised as follows:understanding the new technological developments towards interoperability and openness,guide and help for the actual work direction,.try to think a step further, as every research project.OKAPI should promote the solutions that really improve interoperability and openness. It should also propose solutions and demonstrate their accuracy regarding both security and market place aspects.The project has completed its preliminary version of a conditional access system based on a DAVIC compliant platform and on IP connection to certification authorities. The Internet simulator for TTP based on conditional access is now operational, and the test bed for OKAPI kernel evaluation is set up on a Campus Net.OKAPI expects to provide the answer to issues regarding Access Control to Multimedia services in an Open environment.Expected ImpactOKAPI will have an impact on DAVIC and DVB security specifications, by actively promoting its Kernel as a basis for standardising an Access Control system.Main contributions to the programme objectives:Main deliverablesOpen Multimedia conditional access system based on a DAVIC (Digital Audio Visual Council) compliant platform and on IP connection to certification authorities. It uses Trusted Third Parties to ensure interoperability of the system and so...