Description

• Title:
  Privacy preservation for transaction initiators: stronger key image ring signature and smart contract-based framework
• Creator:
  Odoom, Justice;
  Xiaofang, Huang;
  Akwasi Danso, Samuel;
  Nana Esi Nyarko, Benedicta
• Description:
  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.
• Object availability:
  free access
• Rights:
  Copyright (c) 2023 Computer Science;
  https://creativecommons.org/licenses/by/4.0
• Date:
  2023.03.06
• Type:
  info:eu-repo/semantics/article;
  info:eu-repo/semantics/publishedVersion;
  Peer-reviewed Article
• Language:
  English
• Source:
  Computer Science; Vol. 24 No. 1;
  2300-7036;
  1508-2806
• Format:
  application/pdf
• Publisher:
  AGH University of Krakow, Faculty of Computer Science
• Relation: https://journals.agh.edu.pl/csci/article/view/4643/2883
• Identifier: https://journals.agh.edu.pl/csci/article/view/4643 ;
  10.7494/csci.2023.24.1.4643
• Data provider:
  AGH University of Science and Technology Journals
• Can I use it?:
  seek permission
• Type:
  text