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A physically unclonable function (PUF) is a promising technology that provides the ability to identify network components. Conventional PUF circuitry suffers from a reliability problem in which a consistent output value is not guaranteed because of environmental changes such as the power supply voltage and operating temperature. This paper introduces a PUF circuit that yields consistent responses...
Sensor networks are vulnerable to types of Denial-of-Service attacks such as the selective forwarding attack in which an adversary injects the compromised nodes, attempting to either deny these nodes of critical information or to deceive the base station. This attack can suppress or modify critical information such as the movement of enemy forces. However, such type of attacks faces the risk that...
In sensor networks, a compromised node can generate fabricated reports, which cause severe damage such as false alarms and energy drain. An interleaved hop-by-hop authentication (IHA) scheme addresses the attack by detecting and filtering false reports in a deterministic and hop-by-hop fashion. Unfortunately, in IHA, all en-route nodes must join to verify reports while only a few are actually necessary...
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