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Title:
Parallel strategies for SIDH: Towards computing SIDH twice as fast
Authors: Daniel Cervantes-Vázquez, Eduardo Ochoa-Jiménez, Francisco Rodríguez-Henríquez
Abstract:We present novel strategies and concrete algorithms for the parallel computation of the Supersingular Isogeny-based Diffie-Hellman key exchange (SIDH) protocol when executed on multi-core platforms. The most relevant design idea exploited by our approach is that of concurrently computing scalar multiplication operations along with a parallelized version of the strategies required for constructing and evaluating large smooth degree isogenies. We report experimental results showing that a three-core implementation of our parallel approach achieves an acceleration factor of 1.56 compared against a sequential implementation of the SIKE protocol.
ePrint: https://eprint.iacr.org/2020/383
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