Beksaev Nikolay Sergeevich (Postgraduate student
Emperor Alexander I St. Petersburg State University of Railway Engineering
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A trusted third party (TTP) is a fundamental element for ensuring secure digital interactions. The traditional model based on centralized certification authorities (CA) faces problems with scalability and a single point of failure. Blockchain and smart contract technologies provide an opportunity to think about decentralized alternatives. In this article, the author aims to demonstrate the fundamental possibility of creating such an alternative and to provide an economic assessment of the use of each architecture. A comparative analysis of three TTP implementation architectures is carried out: a classic CA, a fully distributed TTP using the Ethereum blockchain as an example, and a hybrid model that combines both approaches. The minimum required smart contracts for implementing alternative architectures are determined, and tasks are distributed between the components of the subsystems. Oracles are considered as technologies for connecting the blockchain with the outside world and the risks associated with them. The author conducted practical experiments to evaluate the metric of computational efforts to perform key operations (the so-called "gas"), which made it possible to implement an assessment of the cost of signing one document; such data can be used for calculations when designing distributed TTP systems in the future.
Keywords:trusted third party, blockchain, smart contact, blockchain oracle, certification authority.
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Citation link:
Beksaev N. S. FROM ATOMIC TRUST TO DISTRIBUTED CONSENSUS: A COMPARATIVE ANALYSIS OF TRUSTED THIRD PARTY ARCHITECTURES ON THE ETHEREUM BLOCKCHAIN PLATFORM // Современная наука: актуальные проблемы теории и практики. Серия: Естественные и Технические Науки. -2025. -№08. -С. 42-47 DOI 10.37882/2223-2966.2025.08.03 |
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