Journal of Information Security Reserach ›› 2024, Vol. 10 ›› Issue (8): 719-.

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Research on Data Security Sharing Technology Based on Blockchain and  Proxy Re-encryption

Wu Yu and Chen Danwei#br#

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  1. (School of Computer Science and Technology, Nanjing University of Posts and Telecommunications, Nanjing 210023)

  • Online:2024-08-08 Published:2024-08-08

基于区块链与代理重加密的数据安全共享技术研究

吴宇陈丹伟


  

  1. (南京邮电大学计算机学院、软件学院、网络空间安全学院南京210023)

  • 通讯作者: 吴宇 硕士研究生.主要研究方向为基于区块链的数据共享关键技术. 1221045818@njupt.edu.cn
  • 作者简介:吴宇 硕士研究生.主要研究方向为基于区块链的数据共享关键技术. 1221045818@njupt.edu.cn 陈丹伟 博士,教授.主要研究方向为计算机通信网及其安全理论与技术、云计算体系结构及安全、云环境下应用安全、大数据平台体系结构安全、数据安全. chendw@njupt.edu.cn

Abstract: In the digital age, a vast amount of sensitive data is stored across various networks and cloud platforms, making data protection a crucial challenge in the field of information security. Traditional encryption methods are vulnerable due to single point of failure and centralized control, which can lead to data leakage. To address these issues, this study proposes a new method that integrates blockchain technology with an improved proxy reencryption algorithm, utilizing Shamir threshold key sharing. A data sharing scheme TDPRBC based on the threshold proxy reencryption algorithm is designed. Security analysis and experimental results show that this scheme can meet most data access needs.

Key words: data sharing, blockchain, proxy reencryption, Shamir secret sharing, smart contract

摘要: 在数字化时代,大量敏感数据存储在各种网络和云平台上,数据保护成为信息安全领域的关键挑战之一.传统的加密方法存在单点故障和中心化控制的问题,从而可能导致数据泄露.为了解决这些问题,提出了一种新的方法,将区块链技术和改进的代理重加密算法相结合,采用Shamir门限密钥共享,设计了一种基于门限代理重加密算法的数据共享方案TDPRBC,安全分析及实验结果表明该方案可以满足大部分数据访问需求.

关键词: 数据共享, 区块链, 代理重加密, Shamir秘密共享, 智能合约

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