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Designing a networked system (NS), which consists of various network equipments and uses LAN technology, has become increasingly important. However, there have been few studies on NS design. Our previous study suggests that a well managed NS from an access control viewpoint has a fixed degree distribution, regardless of connection restriction. In this paper, we find an approximation function of its...
Confidentiality and authentication are crucial to wireless sensor networks when sensors are deployed in hostile environments, e.g., battle fields and antiterrorist operations. In this paper, we come up with (1) a group key distribution protocol for a base station to distribute a group key to sensors and (2) a broadcast authentication protocol for sensors to authenticate messages broadcasted by a base...
Security in RFID systems is one of the active research topics due to the pervasive use of RFID in many areas. Security solution in RFID systems is said to be hard because of the limited computational and storage abilities of RFID tag. In our work, we attempt to protect the forgery of data stored in the tags by implementing the digital signature using pairing. We adopt the identity-based signature...
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