Abstract
There are constant risks and threats to fair elections against the background of the current crisis of democratic civic engagement and the global pursuit of convenience in the digital age. The political and institutional context in Ukraine, including wartime displacement, occupation of territories and a large diaspora abroad, requires innovative digital tools to ensure that all eligible voters can participate in elections. Therefore, the article aims to analyse the adherence to the principles of secret ballot and personal voting through alternative voting methods, such as e-voting. A four-level e-voting system is identified, having the legal, organisational, procedural and technological components. Moreover, the modern ways of securing, guaranteeing and ensuring the principles of secret ballot and personal voting in e-voting at these levels in Ukraine and abroad are clarified. To this end, the authors analyse legal approaches and electoral practice of foreign countries to determine how the substantive law is implemented in electoral procedures. It is established that the main problem of their unacceptability is the weak protection of confidentiality and the high probability of unauthorised interference with the voting procedure. However, it is possible to prevent such violations through a decentralised blockchain-based e-voting system. The article discusses the main advantages and disadvantages of using various platforms for e-voting, in particular Ethereum and the Hyperledger Fabric platform. Furthermore, the law of Ukraine is analysed concerning the possibility of using digital technologies in testing e-voting in elections and referendums.