面向敏感数据的云计算安全存储问题研究

项目名称： 面向敏感数据的云计算安全存储问题研究

项目编号： No.61472091

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 自动化技术、计算机技术

项目作者： 李进

作者单位： 广州大学

项目金额： 80万元

中文摘要： 云计算是一种可以为用户提供大规模数据外包存储和计算等服务的新型计算模式。本课题将重点研究用户敏感数据的外包存储及操作的安全关键技术，具体包括：(1) 研究安全重复数据删除系统中的关键密码技术，解决可预测明文空间的收敛加密及收敛密钥去重存储管理等基本问题；(2) 研究重复数据删除应用系统中的安全协议设计，解决分布式及多权限去重等可靠重复数据删除系统构造中的关键问题；(3) 研究安全的云存储数据修复及数据删除等技术，优化数据修复中的通信成本及提高数据删除系统中数据使用效率等问题；(4) 研究存储中的加解密等数据安全操作外包技术，基于外包计算任务的代数结构及云计算任务分解特点，解决外包计算中敏感数据的隐私性及计算结果的可验证性等。通过本项目的研究将实现安全可靠的重复数据删除及数据操作外包等云存储服务、促进云计算技术的推广应用。

中文关键词： 数据外包；云计算；重复数据删除；外包计算；可靠存储

英文摘要： Cloud Computing is an emerging computing paradigm which provides outsourced storage and computation services for large-scale data. This research focuses on the security technologies and protocol design in cloud storage for outsourced sensitive data. More specifically, 1) we study the critical cryptographic techniques for secure data deduplication and develop solutions for basic problems such as secure convergent encryption over predicate messages and key deduplication, 2) we design various secure deduplication systems, solve the critical issues such as distributed and differential privilege deduplication to enhance the data reliability, 3) we address the security issues in data repairing and deletion operations, construct effective data reparing and deletion schemes with optimized efficiency, 4) we explore the secure outsourcing computation related with data storage such as encryption and decryption etc., propose secure outsourcing computation schemes with verifiability by utilizing the algebric structure of computation tasks and the computing model in cloud. Through solving the above security issues in cloud storage for sensitive data, this project could provide more secure and reliable deduplication and data outsourcing service for users, which promotes the development of cloud storage technologies.

英文关键词： Data outsourcing;cloud computing;data deduplication;outsourcing computation;reliable storage