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Title:
DRANKULA: a McEliece-like rank metric based cryptosystem implementation
Authors: Ameera Salem Al Abdouli, Mohamed Al Ali, Emanuele Bellini, Florian Caullery, Alexandros Hasikos, Marc Manzano, Victor Mateu
Abstract:We present and analyze the performance of DRANKULA, a McEliece-like cryptosystem implementation using \textit{rank metric} instead of Hamming distance. Namely, we use the scheme proposed by Loidreau in PQCrypto 2017 using Gabidulin codes. We propose a set of carefully selected parameters and we address several non-trivial issues when porting this scheme into real-world systems as, for example, the generation of errors of a given rank. We provide the pseudo-code of the core algorithms of the cryptosystem. In addition, we also show code optimization when special instructions like Carry-less multiplications are available. Moreover, we argue how to have a practical and side-channel resistant version of the cryptosystem. We integrated the scheme in Open Quantum Safe and benchmarked it against the other schemes implemented there. Our results show that DRANKULA can be a practical alternative to other well-known quantum-safe schemes.
ePrint: https://eprint.iacr.org/2018/768
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