VOTEMAT: Blokzincir Tabanlı Oylama Sistemi

Abstract

Bu çalışma Blokzincir teknolojisi ile güvenli, güvenilir ve değiştirilemez bir oylama sistemi kurulabileceğini göstermeyi amaçlamaktadır. Blokzincir'in merkeziyetsiz yapısı, merkezi otoriteyi sistemin dışında tutmakta ve şeffaflık sağlamaktadır. Ayrıca, uygulanan şifreleme işlemlerin güvenli bir şekilde gerçekleşmesini sağlamaktadır. Böylece birden fazla oy kullanılması, sahte oy pusulası kullanım girişimleri ve hileli oy sayımları gibi olası sahtekârlıkların önüne geçilebilecektir. Önerilen yöntem olan VOTEMAT, hem elektronik oylamayı hem de kâğıt oy pusulasını kapsadığı için eksiksiz bir çözüm sağlamaktadır. Oylarını sandığa gelmeden kullanmayı tercih eden seçmenler için Ethereum özel Blokzincir ağına bağlı bir mobil uygulama ve bir Web sitesi geliştirilmiştir. Sistem oy verme merkezlerinde, oy verme kabinlerine yerleştirilen mobil cihaz veya kâğıt oy pusulası aracılığıyla oy kullanmayı desteklemektedir; bu durumda da oylar aynı Blokzincir'e kaydedilmekte ve aynı derecede güvenli olarak saklanmaktadır. Oylarını sandık başına gelmeden kullanmak isteyenler için, ulusal kimlik kartındaki bilgilere ve yüz tanımaya dayalı iki adımlı bir kimlik doğrulama tasarlanmıştır. Ayrıca, ortadaki adam saldırıları gibi izinsiz erişim girişimlerini önlemek için şifreleme tabanlı bir güvenlik önlemi kullanılmıştır. Önerilen sistem geleneksel oylama yöntemlerine göre daha pratik olduğundan, katılımı artırabileceği ve her türlü yerel ya da ulusal seçimde kullanılabileceği düşünülmektedir.

Keywords

• Blokzincir
• Ethereum
• Hyperledger Besu
• Şifreleme
• Oylama

VOTEMAT: A Blockchain Based Voting System

Abstract

This study aims to show that a secure, trustable and immutable voting system can be established with Blockchain technology. Decentralized structure of the Blockchain excludes the central authority and provides transparency. Moreover, its cryptographic functions enable secure transactions. Therefore, the operation is prevented from potential frauds, such as multiple votes, fake vote attempts, and fraudulent vote counts. The proposed method, VOTEMAT, covers both electronic voting and paper ballot as a complete solution. A mobile application and a Website, connected to Ethereum private Blockchain network, were developed for the voters who prefer to cast their votes remotely. It is also possible to vote in the voting centres via the mobile device or paper ballot placed in the vote boxes; but these votes are also recorded in the same Blockchain and equally secure. For the remote users, a two-step authentication is designed, based on the information on the national identity card and face recognition. An additional encryption based security measure is used to avoid hacking attempts, such as man in the middle attacks. Since the proposed system is more practical than the traditional voting methods, it can increase the participation and be utilized in all kinds of local or national elections.

Keywords

• Blockchain
• Cryptography
• Ethereum
• Hyperledger Besu
• Voting

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