The LED block cipher. (English) Zbl 1291.94092

Preneel, Bart (ed.) et al., Cryptographic hardware and embedded systems – CHES 2011. 13th international workshop, Nara, Japan, September 28–October 1, 2011. Proceedings. Berlin: Springer (ISBN 978-3-642-23950-2/pbk). Lecture Notes in Computer Science 6917, 326-341 (2011).
Summary: We present a new block cipher LED. While dedicated to compact hardware implementation, and offering the smallest silicon footprint among comparable block ciphers, the cipher has been designed to simultaneously tackle three additional goals. First, we explore the role of an ultra-light (in fact non-existent) key schedule. Second, we consider the resistance of ciphers, and LED in particular, to related-key attacks: we are able to derive simple yet interesting AES-like security proofs for LED regarding related- or single-key attacks. And third, while we provide a block cipher that is very compact in hardware, we aim to maintain a reasonable performance profile for software implementation.
For the entire collection see [Zbl 1223.68010].


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


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