Blockchain-based fair and secure protocol for decentralized
data trading Mi Hyeon
Jeon1 and Sang Uk Shin2+
1Dept. of Information Security,
Graduate School, Pukyong National
University, 45, Yongso-ro,
Nam-Gu, Busan, Republic of Korea 2Div. of Computer Engineering,
College of Information Technology and Convergence, Abstract Demand for data transactions has
increased in various fields with the development of computing technology.
Several trading platforms have emerged to cater to this demand; however, most
platforms were designed with a centralized model, which has led to
performance, security, and privacy concerns. In addition, an increasing
number of businesses are using only private platforms for trading to maintain
trade secrets. However, these platforms present security and fairness
challenges, e.g., denial of their actions by transaction participants and
reliance on the trust of trusted third parties (TTPs). To solve these
problems, several studies have used blockchain to construct secure data
trading platforms. However, in most cases, decentralization is still not
satisfied, such as TTP intervention in the initial setting process of the
protocol. This paper proposes a secure and fair data trading protocol using
blockchain technology. The proposed protocol eliminates the intervention of
TTP by using a randomized arbitrator node selection method for dispute
resolution. Furthermore, all-or-nothing transform (AONT) and dual-receiver
cryptosystem (DRC) techniques are applied to ensure the requirements for a
fair trading platform such as fairness, timeliness and data confidentiality Keywords: Blockchain,
non-repudiation, data trading, fairness, decentralization +: Corresponding author: Sang Uk Shin Journal of Internet Services and
Information Security (JISIS), 12(3): 30-48, August 2022 |