Abstract
Ad hoc space networks (ASNs) are implemented using flexible, distributed architecture consisting of constellations of dynamically deployed space, airborne and mobile platforms. The nodes within ASNs operate both as communication end-points as well as routers, enabling multi-hop wireless communication and dynamic network topology. Secure and efficient key agreement scheme is the crucial mechanism to construct secure ASNs. Previous ID-based cryptosystem is not feasible in ASNs because of the interaction process in key agreement. A novel non-interactive and efficient ID-based two-party key agreement protocol is proposed for ASNs. Based on the security analysis of IDNIKS proposed by Tso et al., the feasibility of adopting non-interactive key agreement for multi-party in ASNs is analyzed and a conclusion is given.
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