A History-Based Framework to Build Trust Management Systems

In the context of ambient networks where each small device must trust its neighborhood rather than a fixed network, we propose in this paper a trust management framework based upon social patterns. As in human interactions model, our proposal build trust using history elements of past interactions with a local reputation model. The main features of our framework is the non transitivity of the trust bond and the non transferability of the history. The elements of history are also cryptographically proved as a criterion to enforce the trust notion. This gives a general framework that permits the implementation of various trust models.