## Cryptology ePrint Archive: Report 2018/266

Authenticated key exchange for SIDH

Steven D. Galbraith

Abstract: We survey authenticated key exchange (AKE) in the context of supersingular isogeny Diffie-Hellman key exchange (SIDH). We discuss different approaches to achieve authenticated key exchange, and survey the literature. We explain some challenges that arise in the SIDH setting if one wants to do a Diffie-Hellman-like'' AKE, and present several candidate authenticated key exchange protocols suitable for SIDH. We also discuss some open problems.

Category / Keywords: public-key cryptography / supersingular isogeny crypto, authenticated key exchange

Date: received 12 Mar 2018

Contact author: s galbraith at auckland ac nz

Available format(s): PDF | BibTeX Citation

Short URL: ia.cr/2018/266

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