Establishing a Privacy Index: Assessing Blockchain Privacy and Security in Decentralized Systems

doi:10.23940/ijpe.26.01.p2.1018

Abstract

Abstract: As decentralized blockchain technology continues to expand, safeguarding the transaction’s confidentiality and user’s anonymity has become increasingly crucial. While substantial research has been conducted on the design and development of privacy protocols, a comprehensive evaluation of these solutions remains lacking. To bridge this gap, we first categorized existing privacy solutions based on key components of blockchain technology and cryptography and examined the assessment criteria applied to these methods. The analysis reveals that many of these solutions have not undergone rigorous evaluation. To address this, we identified additional factors that influence or undermine blockchain privacy and created an assessment framework to measure the effectiveness of privacy solutions based on these factors. We also introduced a quantifiable metric to assess blockchain privacy performance. In this framework, privacy precision was determined by evaluating the efficacy, resilience, and potential risks associated with various privacy-enhancing features. Finally, we implemented the derived privacy index within a smart contract and demonstrated its practical application, providing a foundation for empirically evaluating blockchain privacy.

Key words: decentralized system, anonymity, privacy, secure blockchain, smart contract

Ramya Rajamanickam, Renu Mishra, and Saumya Chaturvedi. Establishing a Privacy Index: Assessing Blockchain Privacy and Security in Decentralized Systems [J]. Int J Performability Eng, 2026, 22(1): 10-18.

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