Introduction The sudden popularity of social networks and web 2.0 applications changed radically the Internet landscape and the users' behavior. Today's young people are the first generation with the ability to distribute information quickly, cheaply and to large groups of people. The amount of personal and private information published and stored in the… (More)
When designing a service-based business process employing loosely coupled services, one is not only interested in guaranteeing a certain flow of work, but also in how the work will be performed. This involves the consideration of non-functional properties which go from execution time and costs, to trust and security. Ideally, a designer would like to have… (More)
In service-oriented systems a constellation of services cooperate, sharing potentially sensitive information and responsibilities. Cooperation is only possible if the different participants trust each other. As trust may depend on many different factors, in a flexible framework for Trust Management (TM) trust must be computed by combining different types of… (More)
Dynamic and self-organizing systems like those found in ubiquitous computing or semantic Web based scenarios raise numerous challenges regarding trust and privacy. Service discovery is a basic feature of SOA deployment in such systems, given that entities need to locate services they can describe but that they do not necessarily know. PKI based solutions to… (More)
Mobile devices consume significant amounts of information, from different sources. Thus they often deal also with sensitive or confidential data, in places or situations that could be not appropriate, or not compliant with a corporate policy: context-aware access/usage control solutions can counter such situations. We propose a prototype, called ProtectMe,… (More)
Many companies have to share various types of information containing private data without being aware about the threats related to such non-controlled disclosure. Therefore we propose a solution to support these companies to evaluate the disclosure risk for all their types of data; by recommending the safest configurations using a smart bootstrapping system.
Dynamic and self organizing systems like those found in pervasive computing systems or semantic Web based scenarios raise numerous SOA deploymentchallenges regarding security and privacy. Service discovery is a basic feature of SOA deployment in such systems, given that entities need to locate services they can describe without an a priory knowledge. After… (More)
One of the main security concerns related to the cloud hosting and virtualization, is the lack of Trust in the infrastructure. This lack of trust is due to the absence of transparency concerning the data handling and storage conditions. There are no concrete technical guarantees that can convince a potential cloud customer that he is fully controlling his… (More)