BEvote: Bitcoin-Enabled E-Voting Scheme with Anonymity and Robustness

Abstract

When building the large-scale distributed decision control system based on mobile terminal devices (MTDs), electronic voting (E-voting) is a necessary technique to settle the dispute among parties. Due to the inherent insecurity of Internet, it is difficult for E-voting to attain complete fairness and robustness. In this study, we argue that Bitcoin blockchain offers better options for a more practical E-voting. We first present a coin mixing-based E-voting system model, which can cut off the relationship between the voter’s real identity and its Bitcoin address to achieve strong anonymity. Moreover, we devise a secret sharing-based E-voting protocol, which can prevent voting number from being leaked ahead and further realize strong robustness. We establish the probable security theory to prove its security. In addition, we use the experimental evaluation to demonstrate its efficiency.

A Privacy-Preserved and User Self-Governance Blockchain-Based Framework to Combat COVID-19 Depression in Social Media

“…In addition to the above advantages, blockchain is evolving towards refinement according to needs. Examples include mechanisms that incorporate artificial intelligence techniques to discriminate behaviors [43], thus identifying, for instance, Ponzi schemes [73]; a peer-to-multipoint approach to data transfer [47]; the introduction of a draft smart contract to create smart digital protocols between blockchain participants [49]; securing payments [50]; security verification, such as identity verification during the COVID-19 epidemic [51]; further refinement of elections and voting [54,62]; penalty mechanisms for malicious behavior of participants [56,57,65,66,68,74]; energy transactions [57]; Internet of Things (IoT) monitoring [60]; anti-fraud functionality implemented using Bitcoin payment platforms before being verified by central aggregators [63]; solving compatibility issues in industrial requirements, generating alerts, processing contracts, events, and certificates [64]; proving ownership of customers/healthcare providers [65]; combining other technologies such as artificial intelligence [44], proposing new blockchain paradigms [67] and interoperability with emerging progressive technologies within the blockchain, such as decentralized prophecy machines and sidechains [74]; enhancing the searchability of information within the blockchain [69]; using smart contracts to control the process [75]; using a shapley-valued profit-sharing mechanism [77]; supervisory functions shared by all nodes [47,70]; and no dependence on third-party organizations [50,63,69].…”