Paper 2015/424

FIDES: Lightweight Authenticated Cipher with Side-Channel Resistance for Constrained Hardware

Begül Bilgin, Andrey Bogdanov, Miroslav Knežević, Florian Mendel, and Qingju Wang

Abstract

In this paper, we present a novel lightweight authenticated cipher optimized for hardware implementations called FIDES. It is an online nonce-based authenticated encryption scheme with authenticated data whose area requirements are as low as 793 GE and 1001 GE for 80-bit and 96-bit security, respectively. This is at least two times smaller than its closest competitors Hummingbird-2 and Grain-128a. While being extremely compact, Fides is both throughput and latency efficient, even in its most serial implementations. This is attained by our novel sponge-like design approach. Moreover, cryptographically optimal 5-bit and 6-bit S-boxes are used as basic nonlinear components while paying a special attention on the simplicity of providing first order side-channel resistance with threshold implementation.

Metadata
Available format(s)
PDF
Category
Secret-key cryptography
Publication info
Published by the IACR in CHES 2013
DOI
10.1007/978-3-642-40349-1_9
Keywords
lightweight cryptographyauthenticated encryptionkeyed spongeglitch-free maskingAPN permutationalmost bent permutation
Contact author(s)
begul bilgin @ esat kuleuven be
History
2015-05-05: received
Short URL
https://ia.cr/2015/424
License
Creative Commons Attribution
CC BY

BibTeX

@misc{cryptoeprint:2015/424,
      author = {Begül Bilgin and Andrey Bogdanov and Miroslav Knežević and Florian Mendel and Qingju Wang},
      title = {FIDES: Lightweight Authenticated Cipher with Side-Channel Resistance for Constrained Hardware},
      howpublished = {Cryptology ePrint Archive, Paper 2015/424},
      year = {2015},
      doi = {10.1007/978-3-642-40349-1_9},
      note = {\url{https://eprint.iacr.org/2015/424}},
      url = {https://eprint.iacr.org/2015/424}
}
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