基于区块链与代理重加密的数据安全共享技术研究

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

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.

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.