Gerenciamento de confiança em ambientes pervasivos.

Abstract

The development of technology is integrating computing to people every day life. This integration belongs to a new computing paradigm: the pervasive computing. In this paradigm, the computation is always available, in every place at any time, through environments crowd of computing devices embedded in a great variety of objects like cars,cell phones, etc. In these environments, devices interact through services and should be able to deal with different service announcement solutions available. These interactions can occur without computing network infrastructure andamong malicious devices. In this work, it is developed a model to evaluate service trust in pervasive environments from experiences and recommendations. This model is implemented by a Trust Information Manager that provides a mechanism to make trust based decision. This Trust Information Manager is integrated to a pervasive computing middle ware,called Wings, enabling trusted service discover. Simulations and a test application were used to evaluate theTrust Information Manager and its integration with the Wings middleware. From the results it could be seen that the presented solution is efficient and can be widely used in pervasive computing environments.