基于分级加密的学生教育档案区块链共享模型构建研究  

The Construction of a Blockchain-Based Model for Sharing Student Educational Records Using Hierarchical Encryption

作　　者：曲靖野 刘鑫 QU Jingye;LIU Xin(School of Computer Science and Technology,Beihua University,Jilin 132021,China)

机构地区：[1]北华大学计算机科学技术学院,吉林吉林132021

出　　处：《情报科学》2024年第11期199-207,共9页Information Science

基　　金：国家社会科学基金一般项目“智联网环境下用户隐私风险与隐私保护研究”(20BTQ060)

摘　　要：【目的/意义】目前数字化学生档案管理与用人单位共享学生信息时存在数据篡改、隐私泄露等问题,为解决上述问题本文提出基于分级加密的学生教育档案区块链共享安全模型。【方法/过程】采用分级加密策略,根据学生教育档案信息隐私程度提供差异化加密处理,分别使用ECC、AES随机加密、哈希加密对学生信息进行处理,以平衡安全性与效率。代理重加密与智能合约结合,避免过度依赖第三方服务器,避免直接传输学生私钥,构建代理智能合约实现学生教育档案安全共享。【结果/结论】在HyperLedger Fabric环境搭建本文区块链模型,在链下使用分级加密方法进行加密,与传统加密方案进行对比,可以有效平衡安全性和效率;将代理重加密与智能合约结合,通过Tape进行测试,吞吐量满足一般系统的需求。【创新/局限】为实现学生教育档案与用人单位安全共享,本文提出基于分级加密的学生教育档案区块链共享模型,通过分级加密,平衡安全性和效率;通过构建代理智能合约,保证其安全共享。【Purpose/significance】Current digital student record management and sharing with employers face issues such as data tampering and privacy leakage.To address these issues,this paper proposes a blockchain-based secure sharing model for student educational records,utilizing tiered encryption.【Method/process】A tiered encryption strategy is employed,providing differentiated encryption for student record information based on privacy levels.ECC,AES random encryption,and hash encryption are applied to process the student data,balancing security and efficiency.Proxy re-encryption is combined with smart contracts to avoid over-reliance on third-party servers and the direct transmission of student private keys.A proxy smart contract is constructed to ensure secure sharing of student educational records.【Result/conclusion】The blockchain model proposed in this paper is implemented in a HyperLedger Fabric environment,with tiered encryption applied off-chain.Comparisons with traditional encryption schemes demonstrate that the proposed approach effectively balances security and efficiency.The integration of proxy re-encryption with smart contracts is tested using Tape,showing that the throughput meets the requirements of typical systems.【Innovation/limitation】To enable secure sharing of student educational records with employers,this paper presents a blockchain-based sharing model using tiered encryption,which balances security and efficiency.By constructing proxy smart contracts,the model ensures secure sharing.

关 键 词：区块链 学生教育档案 分级加密 安全共享 代理重加密 

分 类 号：G252[文化科学—图书馆学] G273