University of Namur
In recent years, with the growing popularity of cloud computing, security in cloud has become an important issue. Cloud computing paradigm represents an opportunity for users to reduce costs and increase efficiency providing an alternative way of using services. It represents both a technology for using computing infrastructures in a more efficient way and a business model for selling computing resources. The possibility of dynamically acquire and use resources and services on the base of a pay-per-use model, implies incredible flexibility in terms of management, which is otherwise often hard to address.