January 20, 2021


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Supersingular Isogeny Oblivious Transfer (SIOT). (arXiv:1805.06589v2 [cs.CR] UPDATED)

We present an oblivious transfer (OT) protocol that combines the OT scheme of
Chou and Orlandi together with thesupersingular isogeny Diffie-Hellman (SIDH)
primitive of De Feo, Jao, and Pl^ut. Our construction is a candidate for
post-quantum secure OT and demonstrates that SIDH naturally supports OT
functionality. We consider the protocol in the simplest configuration of
$binom{2}{1}$-OT and analyze the protocol to verify its security.