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LBlock: a lightweight block cipher. (English) Zbl 1250.94047

Lopez, Javier (ed.) et al., Applied cryptography and network security. 9th international conference, ACNS 2011, Nerja, Spain, June 7–10, 2011. Proceedings. Berlin: Springer (ISBN 978-3-642-21553-7/pbk). Lecture Notes in Computer Science 6715, 327-344 (2011).
Summary: 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 \(0.18\mu\)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.
For the entire collection see [Zbl 1216.94003].

MSC:

94A60 Cryptography
68P25 Data encryption (aspects in computer science)
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