吉林大学学报（信息科学版）2025，Vol.43Issue(5)：1085-1090,6.
多区块链下云数据防篡改存储算法
Storage Algorithms of Anti Tampering for Cloud Data under Multiple Blockchains
摘要
Abstract
Data may be tampered with by illegal elements during storage,leading to security issues such as data leakage and damage.In order to ensure the security of data and further improve the anti tampering ability of cloud data,an anti tampering storage algorithm for multi blockchain cloud data is proposed.By analyzing the structure of multi blockchain networks,a cloud data distributed storage architecture based on blockchain technology is designed.A cloud data access control model is designed through the data layer,application interaction layer,contract layer,and functional layer to improve the security of distributed cloud data storage.During the data encryption and decryption process,Hash algorithm and asymmetric encryption algorithm are combined to encrypt and decrypt the combined data of"random number+cloud data",to avoid the phenomenon of node private key leakage,cloud data being replaced and forged.The experimental results show that the encryption and decryption processing time of the proposed algorithm is maintained within 25 ms,the probability of successful attack is less than 40％,and the data is not easily tampered with during transmission.关键词
区块链技术/数据分布式存储/云数据/数据加密/防篡改存储Key words
blockchain technology/distributed data storage/cloud data/data encryption/anti tamper storage分类
信息技术与安全科学引用本文复制引用
陈鑫..多区块链下云数据防篡改存储算法[J].吉林大学学报（信息科学版）,2025,43(5):1085-1090,6.基金项目
福建省教育厅中青年课题基金资助项目(TAS19305) （TAS19305）
