Achieving Anonymous and Covert Reporting on Public Blockchain Networks

【Author】 Zhu, Liehuang; Zhang, Jiaqi; Zhang, Can; Gao, Feng; Chen, Zhuo; Li, Zhen

【Source】MATHEMATICS

【影响因子】2.592

【Abstract】Reporting helps to combat illegal activities and deters lawbreakers and potential lawbreakers. From ancient times to the present, public authorities have usually rewarded effective reporting information to build harmonious societies. In this process, protecting the privacy of the whistleblower is a very important issue. Existing blockchain-based anonymous reporting solutions help solve the problem of insufficient anonymity in traditional reporting solutions, but they do not address the issue of hiding the reporting behavior. The disclosure of reporting behavior may alert offenders in advance and negatively impact case handling. This paper proposes an anonymous and covert reporting scheme and rewarding mechanism based on blockchain, which realizes the covertness of the reporting behavior while protecting the privacy of the whistleblower. The proposed scheme uses ring signature and derived address technology to ensure anonymity and achieves covertness by embedding information in the ring signature based on the idea of covert communication. Theoretical analysis proves that the proposed scheme has covertness, anonymity, and unforgeability properties. Experiments show that the proposed scheme takes only 0.08 s to upload data and 0.07 s to verify while achieving covertness.

【Keywords】blockchain network; covert communication; anonymous reporting; ring signature; information embedding; smart contract

【发表时间】2023 APR

【收录时间】2023-05-10

【文献类型】实验仿真

【主题类别】

区块链应用-实体经济-公安领域