A Protocol for Secrecy and Authentication within Proxy-Based SPKI/SDSI Mobile Networks

Resource-constrained mobile devices are becoming increasingly popular within distributed networks, but introduce a weak point of security. Existing protocols for distributed mobile device networks, such as SPKI/SDSI, are emerging standards and lack built-in confidentiality, mutual authorisation and mutual authentication. Our research addresses the above-mentioned security limitations of an existing network security protocol for distributed mobile device networks. By securing the protocol and minimising exchanged messages, our work gives a result which is both faster than the current protocol and more secure. This will open up new application areas for SPKI/SDSI.