Paper 2012/509

On 3-share Threshold Implementations for 4-bit S-boxes

Sebastian Kutzner, Phuong Ha Nguyen, Axel Poschmann, and Huaxiong Wang

Abstract

One of the most promising lightweight hardware countermeasures against SCA attacks is the so-called Threshold Implementation (TI) countermeasure. In this work we resolve many of the remaining open issues towards it's applicability. In particular, our contribution is three-fold: first we define which optimal (from a cryptographic point of view) S-boxes can be implemented with a 3-share TI. Second, we introduce two methodologies to efficiently implement these S-boxes. Third, as an example, we successfully apply these methodologies to PRESENT and are able to decrease the area requirements of its protected S-box by 57\%.

Metadata
Available format(s)
PDF
Category
Secret-key cryptography
Publication info
Published elsewhere. Unknown where it was published
Keywords
secret-key cryptographyimplemetationblockcipherPRESENTThreshold Implementation coutermeasureSide Channel AttackDPA
Contact author(s)
ng0007ha @ e ntu edu sg
skutzner @ ntu edu sg
axel poschmann @ gmail com
hxwang @ ntu edu sg
History
2012-09-03: received
Short URL
https://ia.cr/2012/509
License
Creative Commons Attribution
CC BY

BibTeX

@misc{cryptoeprint:2012/509,
      author = {Sebastian Kutzner and Phuong Ha Nguyen and Axel Poschmann and Huaxiong Wang},
      title = {On 3-share Threshold Implementations for 4-bit S-boxes},
      howpublished = {Cryptology ePrint Archive, Paper 2012/509},
      year = {2012},
      note = {\url{https://eprint.iacr.org/2012/509}},
      url = {https://eprint.iacr.org/2012/509}
}
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