• Article  

      Education, risk and ethics 

      Papastephanou, Marianna (Routledge, 2006)
      While the notion of risk remains under-theorised in moral philosophy, risk aversion and moralist self-protection appear as dominant cultural tendencies saturating educational orientation and practice. Philosophy of education ...
    • Conference Object  

      A novel 3-d model for node and system trust 

      Hadjichristofi, G. C.; Kappos, G.; Hadjicostis, Christoforos N. (2011)
      Nowadays, there is an increasing demand for wireless and mobile networks that guarantee secure and reliable data communication among users. To enable data exchanges, authentication mechanisms need to be in place to dynamically ...
    • Article  

      Opacity-enforcing supervisory strategies via state estimator constructions 

      Saboori, A.; Hadjicostis, Christoforos N. (2012)
      State-based notions of opacity, such as initial-state opacity and infinite-step opacity, emerge as key properties in numerous security applications of discrete event systems. We consider systems that are modeled as partially ...
    • Conference Object  

      Security in future mobile sensor networks - Issues and challenges 

      Stavrou, E.; Pitsillides, A.; Hadjichristofi, G.; Hadjicostis, Christoforos N. (2010)
      Existing security research in wireless sensor networks is based on specific assumptions about the nodes and the network environment that are tied to specific usage scenarios. Typical scenarios consider sensor nodes that ...
    • Article  

      Security in the cache and forward architecture for the next generation Internet 

      Hadjichristofi, G. C.; Hadjicostis, Christoforos N.; Raychaudhuri, D. (2011)
      The future Internet architecture will be comprised predominately of wireless devices. It is evident at this stage that the TCP/IP protocol that was developed decades ago will not properly support the required network ...