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In order to construct a lightweight authenticated key agreement protocol for satellite network, a pairing-free key agreement scheme is proposed, targeting the problem of the existing key agreement scheme's computation based on bilinear pairings is so huge that is not suitable for satellite network. Certificateless cryptography was introduced to settle the problems of transmission and storage of certificates...
Node localization becomes an exciting research area for recently large emergence of ZigBee based wireless applications, where received signal strength indication is adopted as a coarse but simple method on range measurement. Compared with the centralized approach, distributed algorithm that nodes locally calculate their own position coordinates can significantly reduce location-related network traffic;...
Based on the idea of mechanical-electrochemical polishing, a new wire-combined tool had been developed and an investigation has been made into the polishing feasibility of the surface of hard materials when a new mechanical-electrochemistry method is adopted. This tool is made up with the inner electrode and the external helical abrasives. The new structure of this wire-combined tool produces screwy...
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