A reconfigurable and compact hardware architecture of CLEFIA block cipher with multi-configuration

Cheng, Xin; Zhu, Haowen; Xu, Yixuan; Zhang, Yongqiang; Xiao, H.; Zhang, Zhang

doi:10.1016/j.mejo.2021.105144

Cited by 7 publications

(3 citation statements)

References 8 publications

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“…For example, in SIMON 128/192, n = 64, m = 3, round constant Z 3 is used, and 69 rounds of encryption need to be completed. Round constant is introduced here to eliminate the sliding characteristic caused by rotation symmetry 10 …”

Section: Backgroundsmentioning

confidence: 99%

“…Round constant is introduced here to eliminate the sliding characteristic caused by rotation symmetry. 10 As shown in Figure 1, SIMON mainly includes two parts, which are key expansion function and round function. The former works to generate round key K i (i = 0,1, …,r-1), and the latter completes the corresponding round of encryption by K i .…”

Section: Simon Block Ciphermentioning

confidence: 99%

“…The evaluation results show that this algorithm achieves good security with resources far fewer than AES. SONY corporation also proposed a CLEFIA encryption algorithm whose block and key sizes are fully compatible with AES 10 . The SIMON cryptographic algorithm proposed in 2013 adopts Feistel structure to reduce the complexity of encryption and decryption process, so that it is very suitable for resource‐constrained IoT platforms 11–13 .…”

Section: Introductionmentioning

confidence: 99%

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Lightweight and flexible hardware implementation of authenticated encryption algorithm SIMON‐Galois/Counter Mode

Cheng

Wang

et al. 2023

Circuit Theory & Apps

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SummaryThis brief proposes a new lightweight authenticated encryption algorithm SIMON‐GCM for Internet of Things (IoT) security, which realizes the combination of SIMON block cipher and Galois/Counter Mode (GCM). The designed SIMON circuit supports 128/192/256‐bit key size, which improves the flexibility and enlarges the range of applications. Moreover, the scheme of 32‐cycle Galois field (GF) multiplier in GF(2128) is adopted to effectively reduce the hardware cost of the Galois Hash (GHASH) function in GCM. At the same time, a finite state machine (FSM) is used to run the SIMON and GHASH modules in parallel, thus shortening the authenticated encryption time. The whole circuit is designed and implemented in field programmable gate array (FPGA) platforms. It is measured to yield a throughput of 32.4 Gbps when consuming 331 slices in Artix‐7. Compared with the existing authenticated encryption algorithms, the proposed algorithm achieves lower resource consumption and better flexibility.

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Section: Backgroundsmentioning

confidence: 99%

Section: Simon Block Ciphermentioning

confidence: 99%