WG-8: A Lightweight Stream Cipher for Resource-Constrained Smart Devices

Fan, Xinxin; Mandal, Kalikinkar; Gong, Guang

doi:10.4108/sesa.2.3.e4

ICST Transactions on Security and Safety

2015

DOI: 10.4108/sesa.2.3.e4

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WG-8: A Lightweight Stream Cipher for Resource-Constrained Smart Devices

Xinxin Fan¹,

Kalikinkar Mandal²,

Guang Gong³

Abstract: Lightweight cryptographic primitives are essential for securing pervasive embedded devices like RFID tags, smart cards, and wireless sensor nodes. In this paper, we present a lightweight stream cipher WG-8, which is tailored from the well-known Welch-Gong (WG) stream cipher family, for resource-constrained devices. WG-8 inherits the good randomness and cryptographic properties of the WG stream cipher family and is resistant to the most common attacks against stream ciphers. The software implementations of the … Show more

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Cited by 6 publications

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“…Block ciphers implement the stream ciphers. The protocols will not designed by the stream ciphers [10,11]. The parameters of the block cipher are block size, number of rounds and key size.…”

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confidence: 99%

Lorentz Chaotic System key generation with Low Area FPGA Implementation using Present Security Algorithm

Parikibandla¹,

Sreenivas²

2019

IJRTE

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Recently, the study of lightweight symmetric ciphers has gained more importance because of high requirement in the services for security in the CCNs (Constrained Computing Environments): Wireless Sensor Network (WSN), Internet of Things (IoT). A lightweight cipher is a cryptographic algorithm which is used for low resource device, minimal area optimization, low power design and attains sufficient security level. Size of the key is considered as major challenges in the cryptographic algorithms, because it increases the complexity of the cryptographic algorithm. To overcome this issue and improve the security, Lorentz Chaotic System (LCS) based PRESENT architecture is introduced in this research. The PRESENT lightweight block cipher is selected due to it is most general and famous lightweight algorithms. Hence, the random numbers were generated for a key purpose by using an LCS circuit. The streaming data will be encrypt and decrypt by using this algorithm. In this research, the modified lightweight block cipher algorithm is called as LCS-PRESENT architecture. Finally, the performance of LCS -PRESENT architecture was evaluated by FPGA hardware utilizations such as Lookup Table (LUT), flip flop, slices, and frequency. The security level of LCS-PRESENT architecture was analysed based on encrypted and decrypted results in XILINX tool. The LCS-PRESENT architecture utilizes the FPGA device to attain maximum accuracy and throughput, such as 30 of LUTs, 115 of flip flops and 47 of slices from available sources compared to existing cryptographic algorithms.

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mentioning

confidence: 99%

Lorentz Chaotic System key generation with Low Area FPGA Implementation using Present Security Algorithm

Parikibandla¹,

Sreenivas²

2019

IJRTE

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Redundant Bit Security in RFIDs: Architecture Design and Security Performance Evaluation

Jeddi

Khattab

Amini

et al. 2017

J CIRCUIT SYST COMP

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This paper presents an analysis of the security performance and evaluation of the hardware architecture of the redundant bit security (RBS) cryptosystem. RBS is a lightweight symmetric encryption algorithm that targets resource-constrained RFID devices. Unlike the existing cryptosystems, RBS simultaneously provides confidentiality, authentication, and integrity of the plaintext by inserting hash-generated redundant bits among the already modified plaintext data. A flexible-length hash algorithm in our optimized hardware architecture allows RBS to support different key sizes which allows flexibility in the security level. Our analysis shows the resilience of RBS against powerful and well-known attacks such as differential attacks and known-plaintext attacks. We compare the performance of the RBS cryptosystem against other distinguished ciphers developed for RFID systems. Simulation results show that RBS results in approximately 100%, 239%, and 153% higher hardware efficiencies while requiring 48%, 56%, and 59% less energy-per-bit compared to H-PRESENT, HB-2, and Grain, respectively. Such results present confirmatory evidence that RBS is a superior solution for providing security in resource-constrained systems such as RFID systems especially when authentication is a priority.

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Design Space Exploration of Galois and Fibonacci Configuration Based on Espresso Stream Cipher

Shi

Chen

Yang

et al. 2023

ACM Trans. Reconfigurable Technol. Syst.

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Fibonacci and Galois are two different kinds of configurations in stream ciphers. Although many transformations between two configurations have been proposed, there is no sufficient analysis of their FPGA performance. Espresso stream cipher provides an ideal sample to explore such a problem. The 128-bit secret key Espresso is originally designed in Galois configuration, and there is a Fibonacci-configured Espresso variant proved with the equivalent security level. To fully leverage the efficiency of two configurations, we explore the hardware optimization approaches toward area and throughput, respectively. In short, the FPGA-implemented Fibonacci cipher is more suitable for extremely resource-constrained or high-throughput applications, while the Galois cipher compromises both area and speed. To the best of our knowledge, this is the first work to systematically compare the FPGA performance of cipher configurations under relatively fair cryptographic security. We hope this work can serve as a reference for the cryptography hardware architecture research community.

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WG-8: A Lightweight Stream Cipher for Resource-Constrained Smart Devices

Cited by 6 publications

References 28 publications

Lorentz Chaotic System key generation with Low Area FPGA Implementation using Present Security Algorithm

Lorentz Chaotic System key generation with Low Area FPGA Implementation using Present Security Algorithm

Redundant Bit Security in RFIDs: Architecture Design and Security Performance Evaluation

Design Space Exploration of Galois and Fibonacci Configuration Based on Espresso Stream Cipher

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