This research proposes a multisignature scheme using elliptic curve isogenies for enhanced security, indicating potential for robust postquantum systems.
Approaches for constructing postquantum electronic signature schemes are studied. Modern methods for improving the security of protocols based on elliptic curve isogenies are analyzed. A multisignature scheme based on the problem of finding isogenies between supersingular curves with participant authentication is proposed. The effectiveness and safety of the proposed scheme are proved.
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Aleksandrova et al. (2025) studied this question.
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