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- W4312292024 abstract "A high-quality evidence-storage service is crucial for many existing applications. For example, judicial or arbitral authorities need to guarantee that their systems are available and trustworthy to conduct the arbitration. Such a system should protect witnesses’ privacy from potential adversary threats. Ring signatures can be employed in blockchain-based systems to conceal the witness’s identity among a group of persons while guaranteeing the availability and trustworthy of evidence. However, the strong anonymity of ring signature makes regulation tough and shields criminals. The traceable ring signature (TRS) is a de-anonymization mechanism that, unlike group signatures, does not rely on centralized trust, making it suitable for the blockchain system. Unfortunately, no SM2-based designs could be discovered in the TRS public literature. To fill the gap, this paper proposes a traceable ring signature scheme based on SM2 digital signature algorithm. It is shown that SM2 traceable ring signature (STRS) satisfies integrity, unforgeability, anonymity, and traceability. Moreover, we present an STRS-based blockchain evidence-storage system, in which users upload evidence with traceable ring signature generated by themselves, and regulators can learn the true identity of the signer if necessary." @default.
- W4312292024 created "2023-01-04" @default.
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- W4312292024 date "2022-01-01" @default.
- W4312292024 modified "2023-09-25" @default.
- W4312292024 title "Traceable Ring Signature Schemes Based on SM2 Digital Signature Algorithm and Its Applications in the Evidence-Storage System" @default.
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- W4312292024 doi "https://doi.org/10.1007/978-981-19-8043-5_9" @default.
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