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Dynamics of Trust Evolution - Auto-configuration of Dispositional Trust Dynamics

Trust management has been proposed as a convenient paradigm for security in pervasive computing. The part of a trust management system that deals with trust evolution normally requires configuration of system parameters to indicate the user’s propensity to trust other users. Such configurations are not intuitive to ordinary people and significantly reduce the usability of the system. In this paper, we propose a dynamic trust evolution function that requires no initial configuration, but automatically adapts the behaviour of the system based on the user’s experiences. This makes the proposed trust evolution function particularly suitable for embedding into mass produced consumer products.