March 6, 2021

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Coercion-Resistant Blockchain-Based E-Voting Protocol, by Chiara Spadafora and Riccardo Longo and Massimiliano Sala

Coercion resistance is one of the most important features of a secure voting procedure. Because of the properties such as transparency, decentralization, and non-repudiation, blockchain is a fundamental technology of great interest in its own right, and it also has large potential when integrated into many other areas. Here we propose a decentralized e-voting protocol that is coercion-resistant and vote-selling resistant, while being also completely transparent and not receipt-free.
We prove the security of the protocol under the standard DDH assumption.