Trust modelling and measurements for the security of information systems

The proliferation of sensors and communicating devices has significantly enhanced information systems (IS). However, these sources can be deceived or under a third party’s control who can forge pieces of information produced by them. This raises new issues concerning trust one has in information, sources and IS affected. This article studies security of IS thanks to trust in sources. Definition then evaluation of trust in this context are introduced. Thus, a model of sources taking into account competence and sincerity is proposed. Those two features are studied and measured to allow trust’s evaluation. Simulations based on a real dataset shows relevance of our approach. This study is applied to ship’s navigation data analysis. © 2017 Lavoisier.