A Simple Voting Protocol on Quantum Blockchain

Sun, Xin; Wang, Quanlong; Kulicki, Piotr; Sopek, Mirek

doi:10.1007/s10773-018-3929-6

Cited by 63 publications

(52 citation statements)

References 42 publications

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“…Since low-dimensional entanglement can be implemented by current technology, in the future, we will study whether semi-honest distributors could be replaced by low-dimensional entanglement. One potential application of our DBA protocol is in the field of quantum blockchain [ 21 , 22 , 23 ]. In the future, we plan to apply our protocol to quantum blockchain to solve particular problems such as auction, lottery and multi-party secure computation.…”

Section: Discussionmentioning

confidence: 99%

Multi-Party Quantum Byzantine Agreement without Entanglement

Sun

Kulicki

Sopek³

2020

Entropy

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In this paper, we propose a protocol of quantum communication to achieve Byzantine agreement among multiple parties. Our protocol’s striking feature compared to the existing protocols is that we do not use entanglement to achieve the agreement. The role played by entangled states in other protocols is replaced in our protocol by a group of semi-honest list distributors. Such a replacement makes the implementation of our protocol more feasible. Moreover, our protocol is efficient in the sense that it achieves agreement in only three rounds which is a significant improvement with respect to the alternative agreement protocol not using entanglement. In the first round, a list of numbers that satisfies some special properties is distributed to every participant by list distributors via quantum secure communication. Then, in the second and third rounds, those participants exchange some information to reach an agreement.

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Section: Discussionmentioning

confidence: 99%

Multi-Party Quantum Byzantine Agreement without Entanglement

Sun

Kulicki

Sopek³

2020

Entropy

Self Cite

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“…Since blockchains provide the means for transparency and decentralization, multiple blockchain-based solutions have been proposed for performing electronic voting [3,17,27]. Interestingly, with the recent developments in quantum computers, recent work also has started to focus on the development of quantum-resistant blockchain-based voting schemes [33]. These solutions can all be categorised into two categories: cryptocurrencybased and smart-contract-based.…”

Section: Related Workmentioning

confidence: 99%

ÆGIS: Shielding Vulnerable Smart Contracts Against Attacks

Torres¹,

Baden²,

Norvill³

et al. 2020

Proceedings of the 15th ACM Asia Conference on Computer and Communications Security

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In recent years, smart contracts have suffered major exploits, costing millions of dollars. Unlike traditional programs, smart contracts are deployed on a blockchain. As such, they cannot be modified once deployed. Though various tools have been proposed to detect vulnerable smart contracts, the majority fails to protect vulnerable contracts that have already been deployed on the blockchain. Only very few solutions have been proposed so far to tackle the issue of post-deployment. However, these solutions suffer from low precision and are not generic enough to prevent any type of attack. In this work, we introduce AEGIS, a dynamic analysis tool that protects smart contracts from being exploited during runtime. Its capability of detecting new vulnerabilities can easily be extended through so-called attack patterns. These patterns are written in a domain-specific language that is tailored to the execution model of Ethereum smart contracts. The language enables the description of malicious control and data flows. In addition, we propose a novel mechanism to streamline and speed up the process of managing attack patterns. Patterns are voted upon and stored via a smart contract, thus leveraging the benefits of tamper-resistance and transparency provided by the blockchain. We compare AEGIS to current state-of-the-art tools and demonstrate that our solution achieves higher precision in detecting attacks. Finally, we perform a large-scale analysis on the first 4.5 million blocks of the Ethereum blockchain, thereby confirming the occurrences of well reported and yet unreported attacks in the wild. CCS CONCEPTS • Security and privacy → Software and application security; Domain-specific security and privacy architectures; Systems security.

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“…Electronic voting (e-voting) is one of the emerging applications of blockchain whereby researchers aim to leverage benefits such as integrity, anonymity and non-repudiation which are critical for a voting application. Use of blockchain to facilitate e-voting applications has received significant attention recently with efforts such as [10,11,12,13] leveraging blockchain technology to achieve secure and verifiable voting. Specifically, blockchain enables creating a pool of voters by generating unique physical addresses which can be used to represent the voter population and the candidates.…”

Section: Introductionmentioning

confidence: 99%

Investigating performance constraints for blockchain based secure e-voting system

Khan

Arshad

Khan

2020

Future Generation Computer Systems

133

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Voting is one of the fundamental pillars of modern democracy. Continuous efforts have been made to strengthen the processes and methods involved to achieve verifiable, transparent voting systems. In recent years, blockchain has been increasingly used to address multi-dimensional challenges across widespread application domains including healthcare, finance and e-voting. However, achieving an efficient solution via use of blockchain requires consideration of a range of factors such as block generation rate, transaction speed, and block size which have a profound role in determining the overall performance of the solution. Current research into this aspect of blockchain is focused on Bitcoin with the objective to achieve comparable performance as of existing online payment systems such as VISA. However, there exists a gap in literature with respect to investigating performance constraints for wider application domains. In this paper, we present our efforts to address this gap by presenting a detailed study into performance and scalability constraints for an e-voting system. Specifically, we conducted rigorous experimentation with permissioned and permissionless blockchain settings across different scenarios with respect to voting population, block size, block generation rate and transaction speed. The experiments highlighted interesting observations with respect to the impact of these parameters on the overall efficiency and scalability of the e-voting model including trade-offs between different parameters as well as security and performance.

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A Simple Voting Protocol on Quantum Blockchain

Cited by 63 publications

References 42 publications

Multi-Party Quantum Byzantine Agreement without Entanglement

Multi-Party Quantum Byzantine Agreement without Entanglement

ÆGIS: Shielding Vulnerable Smart Contracts Against Attacks

Investigating performance constraints for blockchain based secure e-voting system

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