Paper 2014/453 Original: eprint.iacr.org/2014/453 ↗
Block Ciphers - Focus On The Linear Layer (feat. PRIDE): Full Version
Abstract
The linear layer is a core component in any substitution-permutation network block cipher. Its design significantly influences both the security and the efficiency of the resulting block cipher. Surprisingly, not many general constructions are known that allow to choose trade-offs between security and efficiency. Especially, when compared to Sboxes, it seems that the linear layer is crucially understudied. In this paper, we propose a general methodology to construct good, sometimes optimal, linear layers allowing for a large variety of trade-offs. We give several instances of our construction and on top underline its value by presenting a new block cipher. PRIDE is optimized for 8-bit micro-controllers and significantly outperforms all academic solutions both in terms of code size and cycle count.
Metadata
- Available format(s)
PDF- Category
- Secret-key cryptography
- Publication info
- Preprint.
- History
- 2014-06-16: last updated
- 2014-06-15: published
- Short URL
- https://ia.cr/2014/453
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2014/453,
author = {Martin R. Albrecht and Benedikt Driessen and Elif Bilge Kavun and Gregor Leander and Christof Paar and Tolga Yalçın},
title = {Block Ciphers - Focus On The Linear Layer (feat. PRIDE): Full Version},
howpublished = {Cryptology {ePrint} Archive, Paper 2014/453},
year = {2014},
url = {https://eprint.iacr.org/2014/453}
}