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Title |
Implementation of New Energy-efficient Secure Block Cipher for M2M CPSs |
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Author |
Chandrama Thorat and Vandana Inamdar |
| Citation |
Vol. 25 No. 12 pp. 87-98 |
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Abstract |
Often Cyber-physical systems collect valuable information while controlling or monitoring the systems. It is becoming essential to implement security and privacy to protect connected CPSs. Nevertheless, the resource-constrained nature of the CPSs creates hurdles to achieve a high level of protection. In this work, we propose an energy-efficient secure block cipher TED. TED encrypts 64-bit size plaintext through 128-bit size key in 26 rounds. TED cipher supports improved energy efficiency and compact memory footprint in comparison with the other state-of-the-art balanced Feistel ciphers on a software platform and satisfactory performance on a hardware platform. To optimize the memory footprint, we avoid the use of look-up tables for the permutation box and substitution box. Operating on half part of input text and simple round structure improve the energy-efficiency. The proposed cipher design needs only 1296 Bytes of the primary memory and 793pJ with UMC 90nm STM CMOS technology. Compared with the other ciphers, our implementation on ARM processors supports low latency. We have tested statistical, structural, and algebraic cryptanalysis attacks and shown the robustness of proposed cipher against these attacks. The TED cipher has a good substitution layer, which has a large number of active S-boxes to thwart linear and differential cryptanalysis attacks. Additionally, the effectiveness of Bit-sliced implementation of the substitution layer reduces the threat of timing and cache type SCA attacks. The proposed cipher design will have a strong influence in the field of lightweight security implementation for the connected CPSs. |
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Keywords |
Lightweight cryptography; Energy efficiency, Block cipher; Bit permutation; Bit-slice; |
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