基于区块链技术的电子数据共享属性加密方法分析  

Analysis of Electronic Data Sharing Attribute Encryption Method Based on Blockchain Technology

作　　者：曹航语 柯志华[2] 任春岭 CAO Hangyu;KE Zhihua;REN Chunling(South china university of technology,Guangzhou 510006,China;Fifth Affiliated Hospital of Xinjiang Medical University,Urumqi 830011,China)

机构地区：[1]华南理工大学,广州510006 [2]新疆医科大学第五附属医院,乌鲁木齐830011

出　　处：《自动化与仪器仪表》2025年第2期1-4,共4页Automation & Instrumentation

基　　金：自治区科技支疆项目计划(指令性)项目(2022E02117)。

摘　　要：为进一步数据共享过程的安全性,以电子数据的共享过程为例,提出一种基于属性密码可问责可撤销的区块链重写加密方案。其中,方案中主要包括了自适应安全的可问责可撤销的属性基加密方案RT-ABE,选择消息攻击下的存在不可伪造性的基于SM9算法可链接的环签名方案LRSS以及具有不可区分性的带有临时陷门的变色龙哈希方案CHET三个主要部分。实验结果表明,与其他加密方案相比,本研究所设计方案在加密和解密过程中能够通过实现更多的功能以提升整体安全性;与其他加密方案相比,本研究方案在加密和解密过程中能够整体保持较高的运行效率。综上,构建的基于属性密码可问责可撤销的区块链重写加密方案整体性能良好,能够应用于实际的电子数据共享过程中的信息加密,进而避免数据信息的泄露,保证使用者的隐私。To further enhance the security of the data sharing process,taking the sharing process of electronic data as an exam-ple,a blockchain rewriting encryption scheme based on attribute password accountability and revocation is proposed.Among them,the scheme mainly includes three main parts:the adaptive secure,accountable,and revocable attribute based encryption scheme RT-ABE,the link based ring signature scheme LRSS based on SM9 algorithm with unforgeability under selective message attacks,and the indistinguishable chameleon hash scheme CHET with temporary trapdoors.The experimental results show that compared with other encryption schemes,the scheme designed in this study can enhance overall security by implementing more functions during the en-cryption and decryption process;Compared with other encryption schemes,this research scheme can maintain overall high operational efficiency during the encryption and decryption process.In summary,the blockchain rewriting encryption scheme based on attribute password accountability and revocation has good overall performance and can be applied to information encryption in actual electronic data sharing processes,thereby avoiding data information leakage and ensuring user privacy.

关 键 词：区块链技术 数据共享 属性加密 可撤销 变色龙哈希 

分 类 号：TP392[自动化与计算机技术—计算机应用技术]