Security and collaboration protocols for mobile and sensor networks

摘要: Research in network and computer system architecture is evolving beyond its traditional focus as mobile devices become ubiquitous computing triggers dramatic change the world. Mobile can form heterogeneous networks that provide distributed services information access real time from anywhere Coincident with this change, assurance of security availability becomes an important problem. This problem challenging because it requires to be easy manage operate, but also reliability security. For purpose securing a network, we usually require authentication, authorization, accounting. Authentication users prove their identity. Accounting intrusion detection or forensic analysis find attacks, if any, system. Finally, authorization control ensure data privacy. This dissertation aims design collaboration protocols create comprehensive trust framework protect sensor by applying cryptographic algorithms. It makes three primary contributions. First, propose implement authentication protocol called DAPP wireless allow sensors authenticate servers without requiring commonly-used trusted server. maintains nature networks, has low computation communication overhead, resilient node compromises. Second, attain for nodes ad hoc present (IDS) at application layer help detect malicious network. We describe use agents augment each node's IDS. group-based sharing TGIS establish relationship collaborators enforce between different privileges. built upon existing infrastructures individual organizations enable management group collaboration. The presented together achieve secure accounting networks.