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A Systematic Review of Challenges and Opportunities of Blockchain for E-Voting

Computer Engineering, Ankara University, 06830 Ankara, Turkey
Turkish Radio Television Corporation, IT Department, 06550 Ankara, Turkey
Author to whom correspondence should be addressed.
Symmetry 2020, 12(8), 1328;
Received: 18 July 2020 / Revised: 6 August 2020 / Accepted: 7 August 2020 / Published: 9 August 2020
(This article belongs to the Section Computer and Engineering Science and Symmetry)
A blockchain is a distributed, digitized and consensus-based secure information storage mechanism. The present article provides an overview of blockchain based e-voting systems. The primary purpose of this review is to study the up-to-date state of blockchain-based voting research along with associated possible challenges while aiming to forecast future directions. The methodology applied in the review is a systematic review approach. Following an introduction to the basic structure and features of the blockchain in relation to e-voting, we provide a conceptual description of the desired blockchain-based e-voting application. Symmetrical and asymmetrical cryptography improvements play a key role in developing blockchain systems. We have extracted and reviewed 63 research papers from scientific databases that have advised the adoption of the blockchain framework to voting systems. These articles indicate that blockchain-supported voting systems may provide different solutions than traditional e-voting. We classified the main prevailing issues into the five following categories: general, integrity, coin-based, privacy and consensus. As a result of this research, it was determined that blockchain systems can provide solutions to certain problems that prevail in current election systems. On the other hand, privacy protection and transaction speed are most frequently emphasized problems in blockchain applications. Security of remote participation and scalability should be improved for sustainable blockchain based e-voting. It was concluded that frameworks needed enhancements in order to be used in voting systems due to these reservations. View Full-Text
Keywords: blockchain; voting; consensus; bitcoin; ethereum; ballot blockchain; voting; consensus; bitcoin; ethereum; ballot
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MDPI and ACS Style

Taş, R.; Tanrıöver, Ö.Ö. A Systematic Review of Challenges and Opportunities of Blockchain for E-Voting. Symmetry 2020, 12, 1328.

AMA Style

Taş R, Tanrıöver ÖÖ. A Systematic Review of Challenges and Opportunities of Blockchain for E-Voting. Symmetry. 2020; 12(8):1328.

Chicago/Turabian Style

Taş, Ruhi; Tanrıöver, Ömer Ö. 2020. "A Systematic Review of Challenges and Opportunities of Blockchain for E-Voting" Symmetry 12, no. 8: 1328.

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