SCENERY: a lightweight block cipher based on Feistel structure

Feng, Jingya; Li, Lang

doi:10.1007/s11704-020-0115-9

Cited by 19 publications

(4 citation statements)

References 23 publications

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“…The key schedule of GFLE includes both nonlinear and linear operations, with a process similar to PRESENT [27]. Two S-boxes for nonlinear operations and left cyclic shift for linear operations are resistant to related-key attack [28]. Additionally, GFLE can effectively resist slide attack by introducing AddRoundConstant in each round [8].…”

Section: Key Schedule Attackmentioning

confidence: 99%

GFLE: a low-energy lightweight block cipher based on a variant of generalized Feistel structure

Hu,

Li,

Huang

et al. 2024

Phys. Scr.

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Low-energy lightweight block ciphers are essential for applications with extremely resource-constrained to reduce energy and maintain security. The trade-off between diffusion property and area is a widely studied issue in the design of low-energy block ciphers. In this paper, a low-energy lightweight block cipher named as GFLE is presented. The core cipher of GFLE uses a variant of the Generalized Feistel Structure (GFS) with 4-branch, which combines the Type-II GFS with the simplified Lai-Massey. The DRmax of GFLE has a one-round improvement over the Type-II GFS optimized by Suzaki et al. and the security margin is achieved in a shorter number of rounds. Moreover, an S-box with low-energy and good cryptographic properties is proposed by searching combinations based on gate-level circuits using a depth-first strategy. It exhibits better security properties and hardware performance compared to other S-boxes. The block cipher GFLE is implemented in ASIC with UMC UMC 0.18 μm. It has been proved that the energy of GFLE is lower than Midori, WARP, SKINNY, CRAFT, etc. in unified encryption and decryption (ED) circuits. GFLE reduces energy by 61.59% compared with SKINNY. The results show that GFLE in ED circuits consumes only 1596 Gate Equivalents (GEs) and 6.36 μJ/bit in area and energy, respectively.

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Section: Key Schedule Attackmentioning

confidence: 99%

GFLE: a low-energy lightweight block cipher based on a variant of generalized Feistel structure

Hu,

Li,

Huang

et al. 2024

Phys. Scr.

Self Cite

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show abstract

“…However, the security problems of the device are also more serious when people enjoy the convenience. In particular, encryption algorithms are the key to cryptographic devices, and their security also directly affects the operation of the devices [1]. Therefore, encryption algorithms have aroused increasingly more attention.…”

Section: Introductionmentioning

confidence: 99%

SFGA-CPA: A Novel Screening Correlation Power Analysis Framework Based on Genetic Algorithm

Liu,

Li,

et al. 2024

CMC

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Correlation power analysis (CPA) combined with genetic algorithms (GA) now achieves greater attack efficiency and can recover all subkeys simultaneously. However, two issues in GA-based CPA still need to be addressed: key degeneration and slow evolution within populations. These challenges significantly hinder key recovery efforts. This paper proposes a screening correlation power analysis framework combined with a genetic algorithm, named SFGA-CPA, to address these issues. SFGA-CPA introduces three operations designed to exploit CPA characteristics: propagative operation, constrained crossover, and constrained mutation. Firstly, the propagative operation accelerates population evolution by maximizing the number of correct bytes in each individual. Secondly, the constrained crossover and mutation operations effectively address key degeneration by preventing the compromise of correct bytes. Finally, an intelligent search method is proposed to identify optimal parameters, further improving attack efficiency. Experiments were conducted on both simulated environments and real power traces collected from the SAKURA-G platform. In the case of simulation, SFGA-CPA reduces the number of traces by 27.3% and 60% compared to CPA based on multiple screening methods (MS-CPA) and CPA based on simple GA method (SGA-CPA) when the success rate reaches 90%. Moreover, real experimental results on the SAKURA-G platform demonstrate that our approach outperforms other methods.

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“…Many lightweight block ciphers e.g. PRESENT 4 , CLEFIA 6 , LBlock 7 , HIGHT 8 , TWINE 9 , RECTANGLE 10 , PICO 11 , GIFT 12 , and SCENERY 13 The bit permutation is effective to achieve hardware efficiency while byte/nibble permutations are preferred for better software performance.…”

Section: Introductionmentioning

confidence: 99%

RAZOR A Lightweight Block Cipher for Security in IoT

Singh,

Kumar,

Yadav

2024

Def. Sc. J.

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Rapid technological developments prompted a need to do everything from anywhere and that is growing due to modern lifestyle. The Internet of Things (IoT) technology is helping to provide the solutions by inter-connecting the smart devices. Lightweight block ciphers are deployed to enable the security in such devices. In this paper, a new lightweight block cipher RAZOR is proposed that is based on a hybrid design technique. The round function of RAZOR is designed by mixing the Feistel and substitution permutation network techniques. The rotation and XOR based diffusion function is applied on 32-bit input with 8 branches and branch number 7 to optimize the security. The strength of RAZOR is proved against differential, linear, and impossible differential attacks. The number of active S-boxes in any 5-round differential characteristic of RAZOR is 21 in comparison to the 10, 6, 4, 7, and 6 for PRESENT, Rectangle, LBlock, GIFT, and SCENERY respectively. RAZOR provides better security than the existing lightweight designs. The average throughput of 1.47 mega bytes per second to encrypt the large files makes it a better choice for software oriented IoT applications.

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SCENERY: a lightweight block cipher based on Feistel structure

Cited by 19 publications

References 23 publications

GFLE: a low-energy lightweight block cipher based on a variant of generalized Feistel structure

GFLE: a low-energy lightweight block cipher based on a variant of generalized Feistel structure

SFGA-CPA: A Novel Screening Correlation Power Analysis Framework Based on Genetic Algorithm

RAZOR A Lightweight Block Cipher for Security in IoT

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