Secure and Efficient Masking of AES - A Mission Impossible?

Elisabeth Oswald; Stefan Mangard; Norbert Pramstaller

Paper 2004/134 Original: eprint.iacr.org/2004/134 ↗

Secure and Efficient Masking of AES - A Mission Impossible?

Elisabeth Oswald

Stefan Mangard

Norbert Pramstaller

Abstract

This document discusses masking approaches with a special focus on the AES S-box. Firstly, we discuss previously presented masking schemes with respect to their security and implementation. We conclude that algorithmic countermeasures to secure the AES algorithm against side-channel attacks have not been resistant against all first-order side-channel attacks. Secondly, we introduce a new masking countermeasure which is not only secure against first-order side-channel attacks, but which also leads to relatively small implementations compared to other masking schemes when implemented in dedicated hardware.

Metadata

Available format(s): PDF
Category: Implementation
Publication info: Preprint.
History: 2004-06-04: last updated; 2004-06-04: published
Short URL: https://ia.cr/2004/134
License: https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2004/134,
      author = {Elisabeth Oswald and Stefan Mangard and Norbert Pramstaller},
      title = {Secure and Efficient Masking of AES - A Mission Impossible?},
      howpublished = {Cryptology {ePrint} Archive, Paper 2004/134},
      year = {2004},
      url = {https://eprint.iacr.org/2004/134}
}