Energy and Area Costs of Lightweight Cryptographic Algorithms for Authenticated Encryption in WSN

<div>Architecture of the security module implementing the<i> Encrypt-then-MAC</i> composition. The message containing sensitive data is first encrypted using an encryption key to obtain a ciphertext, then the MAC is calculated for the ciphertext. Under a generic composition the associated data can be authenticated using the MAC as illustrated.</div>

Security and Communication Networks

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Figure 5

Figure 5: Energy and Area Costs of Lightweight Cryptographic Algorithms for Authenticated Encryption in WSN 