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To achieve security in wireless sensor networks (WSNs), pairwise key establishment between two sensor nodes is important. Public key cryptography based key establishment mechanisms are not suitable for WSN, due to their more energy consumption and complex hardware requirements. On the other hand, a different class of key establishment scheme that stores key or key related information are computationally...
Mutual authentication between a service provider and its users is essential to prevent unauthorized adversaries from misutilizing system resources. The traditional method of password table lookups is not scalable and is susceptible to overloading. Therefore this paper proposes a cellular automata based remote-mutual authentication (CARMA) Scheme to reduce the complexity of encryption and hash-based...
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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