• 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 ...
    • Conference Object  

      Opacity verification in stochastic discrete event systems 

      Saboori, A.; Hadjicostis, Christoforos N. (2010)
      Motivated by security and privacy considerations in applications of discrete event systems, various notions of opacity have been introduced. Specifically, a system is said to be current-state opaque if the entrance of the ...
    • 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 ...