Hash functions from superspecial genus-2 curves using Richelot isogenies

In 2018 Takashima proposed a version of Charles, Goren and Lauter’s hash function using Richelot isogenies, starting from a genus-2 curve that allows for all subsequent arithmetic to be performed over a quadratic finite field 𝔽p2. In 2019 Flynn and Ti pointed out that Takashima’s hash function is in...

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Bibliographic Details
Main Authors: Castryck Wouter, Decru Thomas, Smith Benjamin
Format: Article
Language:English
Published: De Gruyter 2020-08-01
Series:Journal of Mathematical Cryptology
Subjects:
Online Access:https://doi.org/10.1515/jmc-2019-0021