Chirotonia: A Scalable and Secure e-Voting Framework based on Blockchains and Linkable Ring Signatures
This addresses the need for scalable and secure electronic voting, which is an incremental improvement over existing blockchain-based methods.
The paper tackled the problem of building secure e-voting systems by proposing a framework that uses blockchain smart contracts and linkable ring signatures to ensure decentralization, transparency, and voter anonymity, with a proof-of-concept implementation provided as open source.
In this paper we propose a comprehensive and scalable framework to build secure-by-design e-voting systems. Decentralization, transparency, determinism, and untamperability of votes are granted by dedicated smart contracts on a blockchain, while voter authenticity and anonymity are achieved through (provable secure) linkable ring signatures. These, in combination with suitable smart contract constraints, also grant protection from double voting. Our design is presented in detail, focusing on its security guarantees and the design choices that allow it to scale to a large number of voters. Finally, we present a proof-of-concept implementation of the proposed framework, made available as open source.