Title: A new revocable reputation evaluation system based on blockchain

Authors: Haoxuan Li; Hui Huang; Shichong Tan; Ning Zhang; Xiaotong Fu; Xiaoling Tao

Addresses: State Key Laboratory of Integrated Service Networks(ISN), Xidian University, Xi'an, China ' State Key Laboratory of Integrated Service Networks(ISN), Xidian University, Xi'an, China ' School of Cyber Engineering, Xidian University, Xi'an, China ' School of Cyber Engineering, Xidian University, Xi'an, China ' School of Cyber Engineering, Xidian University, Xi'an, China ' Key Laboratory of Cloud Computing and Complex Systems, Guangxi Colleges and Universities, Guilin University of Electronic Technology, Guilin 541004, China; Guangxi Cooperative Innovation, Center of cloud computing and Big Data, Guilin University of Electronic Technology, Guilin 541004, China

Abstract: Reputation evaluation system, as the publisher and analyser of evaluation, is an important influencing factor for users and sellers in online business. Traditional reputation evaluation system always requires a third party to achieve the operation of analysis and publishment. However, a third party often exposes the identity of the users, and leaks the information. As far as we know, all existing revocable reputation evaluations are based on the third-party model. In this paper, we present a new reputation evaluation system based on blockchain. Compared with traditional reputation evaluation systems, our system removes the third party, it allows users to modify their own evaluation information. Moreover, the user's privacy also can be protected. The experiment performance demonstrates that the overhead of the system is acceptable, the system is feasible and efficient.

Keywords: reputation system; cryptography protocol; blockchain; linkable ring signature; smart contract.

DOI: 10.1504/IJHPCN.2019.102138

International Journal of High Performance Computing and Networking, 2019 Vol.14 No.3, pp.385 - 396

Received: 29 Oct 2017
Accepted: 01 Feb 2018

Published online: 03 Sep 2019 *

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