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Trusted Computing or Distributed Trust Management?
Abstract
Nowadays, in contrast with centralized or hierarchical certification authorities and directory of names, other solutions are gaining momentum. Federation of already deployed security systems is considered the key to build global security infrastructures. In this field, trust management systems can play an important role, being based on a totally distributed architecture. The idea of distributed trust management can be confronted with the concept of trusted computing. Though having a confusingly similar denomination, the different interpretation of trust in these systems drives to divergent consequences with respect to system architectures and access policies, but also to law, ethics, politics. While trusted computing systems assure copyright holders and media producers that the hosting system will respect the access restrictions they defined, trust management systems, instead, allow users to grant trust to other users or software agents for accessing local resources, as discussed in chapter 24.
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