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Wireless sensor networks (WSNs) are best suited for perceiving a phenomenon, which in turn forms the basis for controlling an actuator in a corrective plane. However, before the corrective action can be invoked, it is necessary to validate that the data was not injected with a malicious intent. To this end we propose CADA (cellular automata based data authentication mechanism), a lightweight protocol...
User authentication is most essential to prevent the unauthorized adversaries from obtaining the system resources. This paper proposes a cellular automata based remote-user authentication (CARA) scheme to reduce the complexity of encryption and hash-based cryptosystems. CARA uses cache-based nonce to avoid synchronization problems and thwart replay attacks. This scheme is robust against other attacks...
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