The LED Block Cipher

Jian Guo; Thomas Peyrin; Axel Poschmann; Matt Robshaw

Paper 2012/600

The LED Block Cipher

Jian Guo, Thomas Peyrin, Axel Poschmann, and Matt Robshaw

Abstract

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.

Note: This version is an update from the original article published at CHES 2011, and describes a minor modication to the original LED specifications

Metadata

Available format(s): PDF
Category: Secret-key cryptography
Publication info: Published elsewhere. CHES 2011
Keywords: lightweight block cipher RFID tag AES
Contact author(s): thomas peyrin @ gmail com
History: 2012-10-25: received
Short URL: https://ia.cr/2012/600
License: CC BY

BibTeX

@misc{cryptoeprint:2012/600,
      author = {Jian Guo and Thomas Peyrin and Axel Poschmann and Matt Robshaw},
      title = {The {LED} Block Cipher},
      howpublished = {Cryptology {ePrint} Archive, Paper 2012/600},
      year = {2012},
      url = {https://eprint.iacr.org/2012/600}
}