Paper 2015/775
Efficient MDS Diffusion Layers Through Decomposition of Matrices
S. M. Dehnavi, M. R. Mirzaee Shamsabad, A. Mahmoodi Rishakani, and Y. Fekri Dabanloo
Abstract
Diffusion layers are critical components of symmetric ciphers. MDS matrices are diffusion layers of maximal branch number which have been used in various symmetric ciphers. In this article, we examine decomposition of cyclic matrices from mathematical viewpoint and based on that, we present new cyclic MDS matrices. From the aspect of implementation, the proposed matrices have lower implementation costs both in software and hardware, compared to what is presented in cryptographic literature, up to our knowledge.
Metadata
- Available format(s)
-
PDF
- Category
- Secret-key cryptography
- Publication info
- Preprint. MINOR revision.
- Keywords
- Diffusion layerMDS matrixSymmetric cipherDecomposition of matrices
- Contact author(s)
- std_dehnavism @ khu ac ir
- History
- 2016-12-03: last of 7 revisions
- 2015-08-03: received
- See all versions
- Short URL
- https://ia.cr/2015/775
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2015/775,
author = {S. M. Dehnavi and M. R. Mirzaee Shamsabad and A. Mahmoodi Rishakani and Y. Fekri Dabanloo},
title = {Efficient {MDS} Diffusion Layers Through Decomposition of Matrices},
howpublished = {Cryptology {ePrint} Archive, Paper 2015/775},
year = {2015},
url = {https://eprint.iacr.org/2015/775}
}
