Abstract
We present a highly-optimized implementation of Supersingular Isogeny Key Encapsulation (SIKE) mechanism on ARMv7 family of processors. We exploit the state-of-the-art implementation techniques and processor capabilities to efficiently develop post-quantum key encapsulation scheme on 32-bit ARMv7 Cortex-A processors. We benchmark our results on two popular ARMv7-powered cores. Our benchmark results show significant performance improvement of the key encapsulation mechanism in comparison with the portable implementation. In particular, we achieve almost 7.5 times performance improvement of the entire protocol over the SIKE 503-bit prime field on a Cortex-A8 core.
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