LBlock: a lightweight block cipher. In this paper, we propose a new lightweight block cipher called LBlock. Similar to many other lightweight block ciphers, the block size of LBlock is 64-bit and the key size is 80-bit. Our security evaluation shows that LBlock can achieve enough security margin against known attacks, such as differential cryptanalysis, linear cryptanalysis, impossible differential cryptanalysis and related-key attacks etc. Furthermore, LBlock can be implemented efficiently not only in hardware environments but also in software platforms such as 8-bit microcontroller. Our hardware implementation of LBlock requires about 1320 GE on $0.18mu$m technology with a throughput of 200 Kbps at 100 KHz. The software implementation of LBlock on 8-bit microcontroller requires about 3955 clock cycles to encrypt a plaintext block.

This software is also peer reviewed by journal TOMS.

References in zbMATH (referenced in 47 articles , 1 standard article )

Showing results 1 to 20 of 47.
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  1. Chen, Shiyao; Fan, Yanhong; Sun, Ling; Fu, Yong; Zhou, Haibo; Li, Yongqing; Wang, Meiqin; Wang, Weijia; Guo, Chun: SAND: an AND-RX Feistel lightweight block cipher supporting S-box-based security evaluations (2022)
  2. Banik, Subhadeep; Bao, Zhenzhen; Isobe, Takanori; Kubo, Hiroyasu; Liu, Fukang; Minematsu, Kazuhiko; Sakamoto, Kosei; Shibata, Nao; Shigeri, Maki: WARP: revisiting GFN for lightweight 128-bit block cipher (2021)
  3. Ghosh, Shibam; Dunkelman, Orr: Automatic search for bit-based division property (2021)
  4. Tan, Lin; Zhu, Xuanyong; Qi, Wenfeng: Bagua: a NFSR-based stream cipher constructed following confusion and diffusion principles (2021)
  5. Dey, Sabyasachi; Roy, Tapabrata; Sarkar, Santanu: Some results on Fruit (2019)
  6. Yang, Dong; Qi, Wen-Feng; Chen, Hua-Jin: Provable security against impossible differential and zero correlation linear cryptanalysis of some Feistel structures (2019)
  7. Boura, Christina; Lallemand, Virginie; Naya-Plasencia, María; Suder, Valentin: Making the impossible possible (2018)
  8. Blondeau, Céline; Nyberg, Kaisa: Joint data and key distribution of simple, multiple, and multidimensional linear cryptanalysis test statistic and its impact to data complexity (2017)
  9. Sasaki, Yu; Todo, Yosuke: New impossible differential search tool from design and cryptanalysis aspects. Revealing structural properties of several ciphers (2017)
  10. Zheng, Yafei; Wu, Wenling: Biclique attack of block cipher \textttSKINNY (2017)
  11. Biryukov, Alex; Dinu, Daniel; Großschädl, Johann: Correlation power analysis of lightweight block ciphers: from theory to practice (2016)
  12. Canteaut, Anne; Duval, Sébastien; Leurent, Gaëtan: Construction of lightweight S-boxes using Feistel and MISTY structures (2016)
  13. Derbez, Patrick: Note on impossible differential attacks (2016)
  14. Derbez, Patrick; Fouque, Pierre-Alain: Automatic search of meet-in-the-middle and impossible differential attacks (2016)
  15. Esgin, Muhammed F.; Kara, Orhun: Practical cryptanalysis of full Sprout with TMD tradeoff attacks (2016)
  16. Guo, Jian; Jean, Jérémy; Nikolić, Ivica; Sasaki, Yu: Extended meet-in-the-middle attacks on some Feistel constructions (2016)
  17. Leurent, Gaëtan: Differential forgery attack against LAC (2016)
  18. Lin, Li; Wu, Wenling; Zheng, Yafei: Automatic search for key-bridging technique: applications to LBlock and TWINE (2016)
  19. Lu, Jiqiang: On the security of the LAC authenticated encryption algorithm (2016)
  20. Luykx, Atul; Preneel, Bart; Tischhauser, Elmar; Yasuda, Kan: A MAC mode for lightweight block ciphers (2016)

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