Journal
JOURNAL OF SENSORS
Volume 2016, Issue -, Pages -Publisher
HINDAWI LTD
DOI: 10.1155/2016/8763528
Keywords
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Funding
- National Natural Science Foundation Projects of China [61162003]
- Qinghai Office of Science and Technology [2015-ZJ-904, 2012-Z-902]
- Ministry of Education Chunhui Projects [Z2015052]
- National Social Science Foundation of China [15XMZ057]
- Qinghai Social Science Foundation [2015-ZJ-718]
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We tackle a fundamental security problem in underwater acoustic networks (UANs). The S-box in the existing block encryption algorithm is more energy consuming and unsuitable for resources-constrained UANs. In this paper, instead of S-box, we present a lightweight, 8-round iteration block cipher algorithm for UANs communication based on chaotic theory and increase the key space by changing the number of iteration round. We further propose secure network architecture of UANs. By analysis, our algorithmcan resist brute-force searches and adversarial attacks. Simulation results show that, compared with traditional AES-128 and PRESENT algorithms, our cryptographic algorithm can make a good trade-off between security and overhead, has better energy efficiency, and applies to UANs.
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