Cryptanalysis of the Legendre PRF and Generalizations

The Legendre PRF relies on the conjectured pseudorandomness properties of the Legendre symbol with a hidden shift. Originally proposed as a PRG by Damgård at CRYPTO 1988, it was recently suggested as an efficient PRF for multiparty computation purposes by Grassi et al. at CCS 2016. Moreover, the Le...

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Bibliographic Details
Main Authors: Ward Beullens, Tim Beyne, Aleksei Udovenko, Giuseppe Vitto
Format: Article
Language:English
Published: Ruhr-Universität Bochum 2020-05-01
Series:IACR Transactions on Symmetric Cryptology
Subjects:
Online Access:https://tosc.iacr.org/index.php/ToSC/article/view/8567