Resistance of Isogeny-Based Cryptographic Implementations to a Fault Attack

The threat of quantum computers has sparked the development a new kind cryptography to resist their attacks. Isogenies between elliptic curves are one tools used for such cryptosystems. They championed by SIKE (Supersingular isogeny key encapsulation), an alternate candidate third round NIST Post-Quantum Cryptography Standardization Process. While all candidates believed be mathematically secure, implementations may vulnerable hardware In this work we investigate first time whether Ti's 2017 theoretical fault injection attack is exploitable in practice. We also examine suitable countermeasures. manage recover secret thanks electromagnetic on ARM Cortex A53 using correct and altered public generation. Moreover propose countermeasure detect faults that low overhead as it takes advantage redundancy already present implementations.