Enabling revocable data secure sharing based on blockchain for edge-based IoT

BAI Shitong; ZHANG Jiawei

doi:10.11959/j.issn.1000-436x.TXXB260474

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Enabling revocable data secure sharing based on blockchain for edge-based IoT

更新时间：2026-09-04

- Enabling revocable data secure sharing based on blockchain for edge-based IoT
- Journal on Communications (2026)
- 作者机构：
  
  1.复旦大学，上海 200433
  2.西安电子科技大学网络与信息安全学院，陕西西安 710071
- 作者简介：
- 基金信息：
  
  The National Natural Foundation of China(62171356)
- DOI：10.11959/j.issn.1000-436x.TXXB260474
  CLC： TN309
- Received：12 August 2026，
  
  Revised：2026-08-28，
  
  Accepted：01 September 2026，
- 稿件说明：
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BAI Shitong, ZHANG Jiawei. Enabling revocable data secure sharing based on blockchain for edge-based IoT[J/OL]. Journal on Communications, 2026.
DOI：

BAI Shitong, ZHANG Jiawei. Enabling revocable data secure sharing based on blockchain for edge-based IoT[J/OL]. Journal on Communications, 2026. DOI： 10.11959/j.issn.1000-436x.TXXB260474.

摘要

边缘物联网通过分布式结构部署在用户附近实现低延迟的数据共享。然而，数据所有权与控制权的分离导致共享数据面临严重的非法访问和信任问题。密文策略属性基加密（CP-ABE）技术能够提供数据机密性和细粒度访问控制，但难以适用于分布式边缘环境，且容易受到动态用户身份和属性伪造攻击，同时也给设备带来沉重负担。此外，现有大多数方案在时间敏感数据共享和隐私保护方面仍存在不足。同时，现有方案并未考虑边缘服务器可能破坏数据完整性的问题。本文提出了一种基于区块链的可撤销且可信的数据共享方案BRTDS。该方案将区块链和零知识证明引入可撤销的CP-ABE原语，面向动态用户实现可信的分布式数据访问控制，以抵御身份和属性伪造攻击。设计了一种时间释放隐藏策略树支持对时间敏感数据的访问控制和属性隐私保护。此外，利用智能合约构建了分布式数据审计机制，实现去中心化的共享数据完整性审计。同时还实现了高效加密与可验证解密以提升整体计算效率。形式化分析和大量仿真实验结果证明了本文方案的安全性、实用性和高效性。

Abstract

Edge-based Internet of Things (IoT) emerges to facilitate low-latency data sharing in a decentralized way. However

the intrinsic separation of data ownership and control inflicts serious illegal access and loss of trust on the data sharing. Although Ciphertext Policy Attribute-Based Encryption (CP-ABE) enables confidentiality and fine-grained access control

it is susceptible to impersonation attack from distributed and dynamic users

and its high overhead brings heavy burden to devices

which poses a huge challenge to its application in IoT data sharing. Moreover

most of existing schemes are insufficient to exert privacy-preserving access control on time-sensitive data. Furthermore

semi-trusted edge servers may compromise data integrity

which is seldomly considered. In this work

a Blockchain-assisted Revocable and Trustworthy Data Sharing (BRTDS) scheme is proposed for time sensitive data. It combines blockchain and zero knowledge proof with revocable CP-ABE to ensure distributed data access control across dynamic users and resist malicious users with impersonated identities and attributes. By designing a time-sensitive and privacy-preserving access policy tree

privacy-preserving access control is achieved. Furthermore

a distributed data auditing mechanism is devised through smart contracts to guarantee data integrity in access control process without a centralized auditor. Efficient encryption and verifiable data decryption is achieved with a better performance. Finally

the security of our proposal and its practicability and efficiency is demonstrated through extensive performance evaluation with simulations.

关键词

Keywords

references

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