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A Compact Encryption Algorithm Suited for Resource-restrained WSNs
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DOI：10.4028/www.scientific.net/AMM.263-266.849.png)
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Wireless sensor is usually tiny volume and powered by battery. So its battery capacity, CPU performance and RAM capacity are all very limited, which lead to sensor can't afford complex encryption calculation that will cost much resource. The paper proposes a compact encryption algorithm, named CEA, which adopt minor encryption rounds, longer encryption key, improved ciphertext iteration algorithm, and cycle-exchange method to generate child-key. The measurements highly decrease the resource consumation of WSNs comparing to DES algorithm. The experiments demonstrate that the CEA algorithm owns better avalanche effect and high security level, furthermore, its calculation speed is far faster than DES algorithm, but cost is very low. The merits of CEA algorithm make it is more suited for resource-restrained WSNs than DES algorithm.
Keyword:
Wireless Sensor Networks
Compact Encryption algorithm
Feistel Encryption Structure
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