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Title:
Optimized implementation of the NIST PQC submission ROLLO on microcontroller
Authors: Jérôme Lablanche, Lina Mortajine, Othman Benchaalal, Pierre-Louis Cayrel, Nadia El Mrabet
Abstract:We present in this paper an efficient implementation of the code-based cryptosystem ROLLO, a candidate to the NIST PQC project, on a device available on the market. This implementation benefits of the existing hardware by using a crypto co-processor contained in an already deployed microcontroller to speed-up operations in \mathbb{F}_{2^m}. Optimizations are then made on operations in \mathbb{F}_{2^m}^n. Finally, the cryptosystem outperforms the public key exchange protocol ECDH for a security level of 192 bits showing then the possibility of the integration of this new cryptosystem in current chips. According to our implementation, the ROLLO-I-128 submission takes 173,6 ms for key generation, 12 ms for encapsulation and 79.4 ms for decapsulation on a microcontroller featuring \text{ARM}^{\text{\textregistered}} \text{SecurCore}^{\text{\textregistered}} SC300\texttrademark core running at 50 MHz.
ePrint: https://eprint.iacr.org/2019/787
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