Paper 2015/424 Original: eprint.iacr.org/2015/424 ↗
FIDES: Lightweight Authenticated Cipher with Side-Channel Resistance for Constrained Hardware
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
- Preprint.
- History
- 2015-05-05: last updated
- 2015-05-05: published
- Short URL
- https://ia.cr/2015/424
- License
- https://creativecommons.org/licenses/by/4.0/
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},
url = {https://eprint.iacr.org/2015/424}
}