Submit

Login Login

Register Register

Home / Journals / CMC / Online First / doi:10.32604/cmc.2026.081399
Journal Menu
Special Issues
Table of Content

All issues

Online First

2026

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

Open Access

ARTICLE

Blockchain-Based Transparent Certificateless Data Integrity Auditing with Enhanced Tag Security

Chao Zhang1, Weidong Zhong1, Xu An Wang1, Weiwei Jiang2,*, Ziteng Wang2, Miao Tian1, Jianhong Ling1, Hangjiang Du1, Yunhui Duan1
1 School of Cryptographic Engineering, Engineering University of People’s Armed Police, Xi’an, China
2 School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing, China
* Corresponding Author: Weiwei Jiang. Email: email

Computers, Materials & Continua https://doi.org/10.32604/cmc.2026.081399

Received 03 March 2026; Accepted 14 May 2026; Published online 25 May 2026

Abstract

The integrity risks posed by data outsourcing in cloud storage have driven the development of remote data integrity auditing (RDIA) technologies. However, traditional schemes rely on trusted third-party auditors (TPAs), leading to potential collusion and single-point failure vulnerabilities. The integration of blockchain alleviates these issues through decentralization and transparency, yet existing blockchain-based certificateless auditing schemes still suffer from security flaws in the tag generation phase. Addressing the tag forgery vulnerability in Miao et al.’s scheme, which stems from the absence of random parameters in the hash function input, this paper proposes a lightweight enhancement mechanism: incorporating a random factor into the hash input during tag generation to ensure dynamic unforgeability of tags. While retaining the efficiency advantages of the original framework, the improved scheme achieves resistance against tag forgery, proof forgery, and collusion attacks under the Computational Diffie-Hellman (CDH) and Discrete Logarithm (DL) hardness assumptions, validated through rigorous formal proofs. Experimental performance analysis demonstrates that the proposed enhanced scheme introduces negligible computational overhead, providing a secure, practical, and transparent auditing solution for multi-cloud storage environments.

Keywords

Blockchain; tag security; certificateless cryptography; data integrity auditing; cloud storage

  • 133

    View

  • 29

    Download

  • 0

    Like

Related articles
Copyright© 2026 Tech Science Press
© 1997-2026 TSP (Henderson, USA) unless otherwise stated

Share Link