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An Efficient Adaptive Attack Against FESTA
Feb. 27, 2024, 11 a.m. |
IACR News www.iacr.org
ePrint Report: An Efficient Adaptive Attack Against FESTA
Guoqing Zhou, Maozhi Xu
At EUROCRYPT’23, Castryck and Decru, Maino et al., and Robert present efficient attacks against supersingular isogeny Diffie-Hellman key exchange protocol (SIDH). Drawing inspiration from these attacks, Andrea Basso, Luciano Maino, and Giacomo Pope introduce FESTA, an isogeny-based trapdoor function, along with a corresponding IND-CCA secure public key encryption (PKE) protocol at ASIACRYPT’23. FESTA incorporates either a diagonal or circulant matrix into the secret key to mask torsion points. …
andrea attack attacks diffie drawing eprint report eurocrypt exchange function hellman inspiration key pope protocol report robert
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