Abstract:
Blockchain, hailed as one of the most promising technologies, has garnered significant attention due to its captivating
features, such as decentralized ledger and robust security. Among these, non-repudiation stands out as a crucial aspect of
information security within blockchain systems. Employing a digital signature scheme emerges as an effective strategy to
ensure non-repudiation in this context. The study is to analyze digital signature used in blockchain technology to identify
their role in accomplishing non-repudiation and preserving information integrity. Through an extensive exploration of
blockchain features, the study underscores the role of digital signatures in maintaining information integrity. A detailed
analysis of each identified digital signature scheme is conducted. This analysis includes studying the mathematical
foundations of the scheme, its security assumptions, and cryptographic properties such as Authentication, Completeness,
Integrity, Non-repudiation, Tamper Detection, Efficiency, Security, Scalability, Cross-platform Compatibility,
Timestamping, Global Acceptance, Long-Term Validity, Unlinkability, Traceability, and Application area. The paper
surveys digital signature schemes in blockchain for non-repudiation, suggesting future research: 1) exploring ring and blind
signatures for Bitcoin transaction anonymity, 2) integrating digital signatures with authentication and timestamps for
broader security, and 3) creating certificateless aggregation signatures for IoT devices, aiming to enhance security and
performance. This study contributes to advancing the development of secure and efficient digital signature algorithms
tailored specifically for blockchain applications.
