Paper 2004/134

Secure and Efficient Masking of AES - A Mission Impossible?

Elisabeth Oswald, Stefan Mangard, and 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
Published elsewhere. Unknown where it was published
Keywords
AESimplementationside channel attacks
Contact author(s)
Elisabeth Oswald @ iaik tugraz at
History
2004-06-04: received
Short URL
https://ia.cr/2004/134
License
Creative Commons Attribution
CC BY

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}
}
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