PRIVACY PRESERVATION FOR TRANSACTION INITIATORS: STRONGER KEY IMAGE RING SIGNATURE AND SMART CONTRACT-BASED FRAMEWORK

Justice Odoom; Huang Xiaofang; Samuel Akwasi Danso; Benedicta Nana Esi Nyarko

doi:10.7494/csci.2023.24.1.4643

Authors

Dr. Odoom Southwest University of Science and Technology, Mianyang, Sichuan
Prof. Huang Southwest University of Science and Technology, Mianyang, Sichuan
Dr. Danso Southwest University of Science and Technology, Mianyang, Sichuan
Dr. Nyarko Southwest University of Science and Technology, Mianyang, Sichuan

DOI:

https://doi.org/10.7494/csci.2023.24.1.4643

Abstract

Recently, blockchain technology has garnered support. However, an attenuating factor to its global adoption in certain use cases is privacy-preservation owing to its inherent transparency. A widely explored cryptographic option to address this challenge has been ring signature which aside its privacy guarantee must be double spending resistant. In this paper, we identify and prove a catastrophic flaw for double-spending attack in a Lightweight Ring Signature scheme and proceed to construct a new, fortified commitment scheme using the signer’s entire private key. Subsequently, we compute a stronger key image to yield a double-spending-resistant signature scheme solidly backed by formal proof. Inherent in our solution is a novel, zero-knowledge-based, secured and cost-effective smart contract for public key aggregation. We test our solution on a private blockchain as well as Kovan testnet along with performance analysis attesting to efficiency and usability and make the code publicly available on GitHub.

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Author Biographies

Dr. Odoom, Southwest University of Science and Technology, Mianyang, Sichuan

Justice Odoom, an IEEE member obtained his BSc and MSE degrees in Computer Science from Data Link University, Tema, Ghana and Southwest University of Science and Technology, Mianyang, China, in 2015 and 2020 respectively. He is currently pursuing his PhD with the School of Computer Science and Technology, Southwest University of Science and Technology, China and is a certified Elsevier and Publons academy peer reviewer. His research interests include information security, blockchain technology, and privacy-preservation in the sharing of Electronic Health Records (EHRs).

Prof. Huang, Southwest University of Science and Technology, Mianyang, Sichuan

Huang Xiaofang received the Ph.D. degree from the Beijing University of Posts and Telecommunications in 2010. She is currently a Professor with the school of computer science and technology, Southwest University of Science and Technology, Mianyang, China. Her main research interests include information security, cloud computing, and blockchain technology. She got the information security leading talent award of the district level in 2015.

Dr. Danso, Southwest University of Science and Technology, Mianyang, Sichuan

Samuel Akwasi Danso obtained his first degree in Computer Science in Ghana and Masters degree in Telecom Technology at SMU-India in the year 2012. He is a full-time lecturer, Ghana Communication Technology University -Ghana. Currently a PhD candidate in Control Science and Engineering; the school of Information Communication Engineering, in Southwest University of Science and Technology Mianyang-China. His area of research interests include terahertz active imaging and security on-line and data communications.

Dr. Nyarko, Southwest University of Science and Technology, Mianyang, Sichuan

Benedicta Nana Esi Nyarko obtained her BSc. Information and Communication Technology from Data Link University,Tema-Ghana and MEng. Information and Communication Engineering, from Southwest University
of Science and Technology, Mianyang-China. She is currently a Doctoral Candidate in
Control Science and Engineering at Southwest University of Science and Technology,
Mianyang-China. Her Research Include, Machine Learning, and Pattern Recognition.