可审计且可追踪的区块链匿名交易方案

doi:10.3969/j.issn.0255-8297.2021.01.003

Abstract

Abstract: In recent years, with the strengthening of privacy protection for blockchain transactions, it has become more difficult to audit blockchain transactions and track the identity of illegal traders. For this reason, an auditable and traceable blockchain anonymous transaction scheme is proposed in this paper. Elgamal encryption, digital signature and improved hidden address technologies are used to realize the privacy protection of the transaction content and the identities of transaction senders and transaction receivers, and realize the distribution of power by introducing two roles of auditor and regulator. When an illegal transaction is audited, auditor sends a tracking identity request with signature to the regulator. After the signature is verified, the regulator can use the received tracking key and the personal key to trace the identities of both parties to the transaction. This scheme satisfies the anonymity, auditability and identity traceability of transactions. Simulation experiment results show the high audit efficiency of the scheme.

Key words: blockchain, privacy protection, audit, encryption, stealth address

CLC Number:

TP319

ZHAO Xiaoqi, LI Yong. Auditable and Traceable Blockchain Anonymous Transaction Scheme[J]. Journal of Applied Sciences, 2021, 39(1): 29-41.

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Auditable and Traceable Blockchain Anonymous Transaction Scheme

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