Threshold Implementations in Software: Micro-architectural Leakages in Algorithms

John Gaspoz; Siemen Dhooghe

Paper 2022/1546

Threshold Implementations in Software: Micro-architectural Leakages in Algorithms

John Gaspoz

, KU Leuven

Siemen Dhooghe

, KU Leuven

Abstract

This paper provides necessary properties to algorithmically secure first-order maskings in scalar micro-architectures. The security notions of threshold implementations are adapted following micro-processor leakage effects which are known to the literature. The resulting notions, which are based on the placement of shares, are applied to a two-share randomness-free PRESENT cipher and Keccak-f. The assembly implementations are put on a RISC-V and an ARM Cortex-M4 core. All designs are validated in the glitch and transition extended probing model and their implementations via practical lab analysis.

Metadata

Available format(s): PDF
Category: Implementation
Publication info: Preprint.
Keywords: Masking Micro-architectures Side-channel Analysis Probing Security
Contact author(s): john gaspoz @ esat kuleuven be
siemen dhooghe @ esat kuleuven be
History: 2022-11-08: approved; 2022-11-07: received; See all versions
Short URL: https://ia.cr/2022/1546
License: CC BY

BibTeX

@misc{cryptoeprint:2022/1546,
      author = {John Gaspoz and Siemen Dhooghe},
      title = {Threshold Implementations in Software: Micro-architectural Leakages in Algorithms},
      howpublished = {Cryptology ePrint Archive, Paper 2022/1546},
      year = {2022},
      note = {\url{https://eprint.iacr.org/2022/1546}},
      url = {https://eprint.iacr.org/2022/1546}
}