International Association for Cryptologic Research

International Association
for Cryptologic Research

IACR News item: 30 November 2022

Jesús-Javier Chi-Domínguez
ePrint Report ePrint Report
This paper illustrates that masking the torsion point images does not guarantee Castryck-Decru attack does not apply. Our experiments over SIDH primes hint that any square root concerning the Weil pairing on the masked public key helps to recover Bob's private key via the Castryck-Decru attack.
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