3,341 research outputs found

    A smart contract system for decentralized borda count voting

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    In this article, we propose the first self-tallying decentralized e-voting protocol for a ranked-choice voting system based on Borda count. Our protocol does not need any trusted setup or tallying authority to compute the tally. The voters interact through a publicly accessible bulletin board for executing the protocol in a way that is publicly verifiable. Our main protocol consists of two rounds. In the first round, the voters publish their public keys, and in the second round they publish their randomized ballots. All voters provide Non-interactive Zero-Knowledge (NIZK) proofs to show that they have been following the protocol specification honestly without revealing their secret votes. At the end of the election, anyone including a third-party observer will be able to compute the tally without needing any tallying authority. We provide security proofs to show that our protocol guarantees the maximum privacy for each voter. We have implemented our protocol using Ethereum's blockchain as a public bulletin board to record voting operations as publicly verifiable transactions. The experimental data obtained from our tests show the protocol's potential for the real-world deployment

    BVOT: Self-Tallying Boardroom Voting with Oblivious Transfer

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    A boardroom election is an election with a small number of voters carried out with public communications. We present BVOT, a self-tallying boardroom voting protocol with ballot secrecy, fairness (no tally information is available before the polls close), and dispute-freeness (voters can observe that all voters correctly followed the protocol). BVOT works by using a multiparty threshold homomorphic encryption system in which each candidate is associated with a masked unique prime. Each voter engages in an oblivious transfer with an untrusted distributor: the voter selects the index of a prime associated with a candidate and receives the selected prime in masked form. The voter then casts their vote by encrypting their masked prime and broadcasting it to everyone. The distributor does not learn the voter's choice, and no one learns the mapping between primes and candidates until the audit phase. By hiding the mapping between primes and candidates, BVOT provides voters with insufficient information to carry out effective cheating. The threshold feature prevents anyone from computing any partial tally---until everyone has voted. Multiplying all votes, their decryption shares, and the unmasking factor yields a product of the primes each raised to the number of votes received. In contrast to some existing boardroom voting protocols, BVOT does not rely on any zero-knowledge proof; instead, it uses oblivious transfer to assure ballot secrecy and correct vote casting. Also, BVOT can handle multiple candidates in one election. BVOT prevents cheating by hiding crucial information: an attempt to increase the tally of one candidate might increase the tally of another candidate. After all votes are cast, any party can tally the votes

    BBB-Voting: 1-out-of-k Blockchain-Based Boardroom Voting

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    Voting is a means to agree on a collective decision based on available choices (e.g., candidates), where participants (voters) agree to abide by their outcome. To improve some features of e-voting, decentralized solutions based on a blockchain can be employed, where the blockchain represents a public bulletin board that in contrast to a centralized bulletin board provides 100%100\% availability and censorship resistance. A blockchain ensures that all entities in the voting system have the same view of the actions made by others due to its immutable and append-only log. The existing blockchain-based boardroom voting solution called Open Voting Network (OVN) provides the privacy of votes and perfect ballot secrecy, but it supports only two candidates. We present BBB-Voting, an equivalent blockchain-based approach for decentralized voting than OVN, but in contrast to it, BBB-Voting supports 1-out-of-kk choices and provides a fault tolerance mechanism that enables recovery from stalling participants. We provide a cost-optimized implementation using Ethereum, which we compare with OVN and show that our work decreases the costs for voters by 13.5%13.5\% in terms of gas consumption. Next, we outline the extension of our implementation scaling to magnitudes higher number of participants than in a boardroom voting, while preserving the costs paid by the authority and participants -- we made proof-of-concept experiments with up to 1000 participants

    List Voting’s Travels: The Importance Of Being Independent In The Boardroom

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    The life of the law, especially with regard to corporations, is strongly influenced by experience and practice. The board, a living element of corporate law, is therefore one of the most noteworthy aspects to be studied, given its relevant implications and role as the lifeblood of scholarly debates. This Article offers a novel contribution to the assessment of list voting, a fairly unique Italian system that has been increasingly appreciated by institutional investors. A hand-picked dataset that stretches from 2005 to 2015 shows a positive correlation between minority-appointed directors in the boardroom and dividend payouts. Furthermore, the findings shed light on the practice of appointing independent directors based on slates proposed by the minority of shareholders and provide evidence that list voting works, not only in closely-held corporations, but also on a global scale, despite the previous scholarship that argues that list voting makes more sense in concentrated ownership scenarios. Although the empirical analysis focuses on the Italian case, the insight gained in this analysis regarding the effectiveness of list voting is also useful for other jurisdictions

    Distributed Protocols at the Rescue for Trustworthy Online Voting

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    While online services emerge in all areas of life, the voting procedure in many democracies remains paper-based as the security of current online voting technology is highly disputed. We address the issue of trustworthy online voting protocols and recall therefore their security concepts with its trust assumptions. Inspired by the Bitcoin protocol, the prospects of distributed online voting protocols are analysed. No trusted authority is assumed to ensure ballot secrecy. Further, the integrity of the voting is enforced by all voters themselves and without a weakest link, the protocol becomes more robust. We introduce a taxonomy of notions of distribution in online voting protocols that we apply on selected online voting protocols. Accordingly, blockchain-based protocols seem to be promising for online voting due to their similarity with paper-based protocols

    Bringing Talent Off the Bench and into the Game: The Underrepresentation of Women in the Boardroom

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    While women have expanded their footprint in corporate America in recent years, they are still underrepresented in the upper echelons of corporate governance, specifically in boardrooms, which dictate the direction of a company. At the current rate, it will take more than four decades before women’s representation on corporate boards reaches parity with that of men. Women face obstacles that make it difficult to rise in the ranks of corporate America. This can be attributed to numerous factors that collectively burden women with expectations that are at odds with success. These factors include low representation of women in traditional pipelines to board seats, lack of flexibility in the workplace, male-driven work cultures, and disproportionate mentorship and sponsorship opportunities. Why should companies care about diversity? The importance of diversity can be reinforced by both business and moral arguments. The business case highlights the value-maximizing effect of diverse boards while the moral arguments emphasize that gender diversity is the “right thing to do.” However, despite these arguments in favor of gender diversity, the efforts to improve diversity on boards have been lacking. This Note highlights the current landscape and suggests ways to break down barriers to increase women’s representation in the boardroom. A balanced boardroom with more women’s perspectives will lead to an improved understanding of a company’s stakeholders and its customers’ needs. Increased diversity can also enhance a board’s ability to meet its fiduciary duties

    A Smart Contract for Boardroom Voting with Maximum Voter Privacy

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    We present the first implementation of a decentralised and self-tallying internet voting protocol with maximum voter privacy using the Blockchain. The Open Vote Network is suitable for boardroom elections and is written as a smart contract for Ethereum. Unlike previously proposed Blockchain e-voting protocols, this is the first implementation that does not rely on any trusted authority to compute the tally or to protect the voter’s privacy. Instead, the Open Vote Network is a self-tallying protocol, and each voter is in control of the privacy of their own vote such that it can only be breached by a full collusion involving all other voters. The execution of the protocol is enforced using the consensus mechanism that also secures the Ethereum blockchain. We tested the implementation on Ethereum’s official test network to demonstrate its feasibility. Also, we provide a financial and computational breakdown of its execution cost

    Prescriptions for Excellence in Health Care Summer 2013 Download Full PDF

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