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http://dx.doi.org/10.15207/JKCS.2018.9.11.075

A Study on An Enhancement Scheme of Privacy and Anonymity through Convergence of Security Mechanisms in Blockchain Environments  

Kang, Yong-Hyeog (Department of Global Business Administration, Far East University)
Publication Information
Journal of the Korea Convergence Society / v.9, no.11, 2018 , pp. 75-81 More about this Journal
Abstract
Anonymity and privacy issues are becoming important as all transactions in the blockchain are open to users. Public blockchains appear to guarantee anonymity by using public-key addresses on behalf of users, but they can weaken anonymity by tracking with various analytic techniques based on transaction graph. In this paper, we propose a scheme to protect anonymity and privacy by converging various security techniques such as k-anonymity, mixing, blind signature, multi-phase processing, random selection, and zero-knowledge proof techniques with incentive mechanism and contributor participation. Through performance analysis, our proposed scheme shows that it is difficult to invade privacy and anonymity through collusion attacks if the number of contributors is larger than that of conspirators.
Keywords
Convergence; Mixing scheme; Blind signature; K-anonymity; Zero-knowledge proof;
Citations & Related Records
Times Cited By KSCI : 7  (Citation Analysis)
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