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 34 articles , 1 standard article )

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  1. 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)
  2. Sasaki, Yu; Todo, Yosuke: New impossible differential search tool from design and cryptanalysis aspects. Revealing structural properties of several ciphers (2017)
  3. Zheng, Yafei; Wu, Wenling: Biclique attack of block cipher SKINNY (2017)
  4. Biryukov, Alex; Dinu, Daniel; Großschädl, Johann: Correlation power analysis of lightweight block ciphers: from theory to practice (2016)
  5. Canteaut, Anne; Duval, Sébastien; Leurent, Gaëtan: Construction of lightweight S-boxes using Feistel and MISTY structures (2016)
  6. Derbez, Patrick; Fouque, Pierre-Alain: Automatic search of meet-in-the-middle and impossible differential attacks (2016)
  7. Esgin, Muhammed F.; Kara, Orhun: Practical cryptanalysis of full Sprout with TMD tradeoff attacks (2016)
  8. Guo, Jian; Jean, Jérémy; Nikolić, Ivica; Sasaki, Yu: Extended meet-in-the-middle attacks on some Feistel constructions (2016)
  9. Leurent, Gaëtan: Differential forgery attack against LAC (2016)
  10. Lu, Jiqiang: On the security of the LAC authenticated encryption algorithm (2016)
  11. Xiang, Zejun; Zhang, Wentao; Bao, Zhenzhen; Lin, Dongdai: Applying MILP method to searching integral distinguishers based on division property for 6 lightweight block ciphers (2016)
  12. Beaulieu, Ray; Shors, Douglas; Smith, Jason; Treatman-Clark, Stefan; Weeks, Bryan; Wingers, Louis: The Simon and Speck block ciphers on AVR 8-bit microcontrollers (2015)
  13. Karakoç, F.; Demirci, H.; Harmancı, A.E.: AKF: a key alternating Feistel scheme for lightweight cipher designs (2015)
  14. Lallemand, Virginie; Naya-Plasencia, María: Cryptanalysis of full sprout (2015)
  15. Lallemand, Virginie; Naya-Plasencia, María: Cryptanalysis of KLEIN (2015)
  16. Wu, Wenling; Zhang, Lei; Yu, Xiaoli: The DBlock family of block ciphers (2015)
  17. Zhang, Huiling; Wu, Wenling: Structural evaluation for generalized Feistel structures and applications to LBlock and TWINE (2015)
  18. Blondeau, Céline; Bogdanov, Andrey; Wang, Meiqin: On the (in)equivalence of impossible differential and zero-correlation distinguishers for Feistel- and skipjack-type ciphers (2014)
  19. Bulygin, Stanislav; Walter, Michael; Buchmann, Johannes: Full analysis of PRINTcipher with respect to invariant subspace attack: efficient key recovery and countermeasures (2014)
  20. Dong, Le; Wu, Wenling; Wu, Shuang; Zou, Jian: Known-key distinguishers on type-1 Feistel scheme and near-collision attacks on its hashing modes (2014)

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