Σταυρουλάκη, Μαρία Α.
SubjectΕμπιστοσύνη ; Ηλεκτρονικοί υπολογιστές -- Δίκτυα -- Μέτρα ασφαλείας ; Διαδίκτυο (Internet) -- Κοινωνικές απόψεις ; Διαδίκτυο (Internet) -- Μέτρα ασφαλείας ; Computer communication networks
The notion of trust is multifaceted and may have various dimensions depending on the context. According to the context used, the term “trust” may focus on different aspects, such as the sincerity of the trading parties, their credibility or their capacity to successfully conclude a transaction. In order to implement a mechanism that adequately manages and evaluates trust, it is necessary to utilize a model that formalizes and explicitly defines the concept itself, as well as the relevant processes. Such models and implementations are often susceptible to attacks from malicious entities that try to take advantage of the shortcomings of the model to gain profit. This makes robustness an important factor for every trust model. In the present dissertation we attempt to clarify the notion of trust and to describe its characteristics as well as processes relevant to trust. We will also present selected trust models that are used mainly in computer networks and examine their robustness against the most widely known attacks.