CAJ | 학술논문

云计算的出现为计算机的发展提出了一个新的发展方向，但是其中的很多安全问题一直限制着云计算的发展，其中云存储的完整性检测问题最为突出。由于大数据的特性，现有的关于数据完整性检测的协议并不适合大数据的检测。通过对Juels协议的改进，文中提出一种新的更加适合大数据存储的数据完整性检测协议，改进了原有协议只能进行有限次数检测的缺陷，引入了纠删码技术，使得数据的可恢复性得到大幅提升。通过理论分析表明该协议在数据的计算量和用户数据存储量上都有明显优势。
운계산적출현위계산궤적발전제출료일개신적발전방향，단시기중적흔다안전문제일직한제착운계산적발전，기중운존저적완정성검측문제최위돌출。유우대수거적특성，현유적관우수거완정성검측적협의병불괄합대수거적검측。통과대Juels협의적개진，문중제출일충신적경가괄합대수거존저적수거완정성검측협의，개진료원유협의지능진행유한차수검측적결함，인입료규산마기술，사득수거적가회복성득도대폭제승。통과이론분석표명해협의재수거적계산량화용호수거존저량상도유명현우세。
With the emergence of cloud computing,a new developing direction of the computer has been pointed out. But there are still some security problems restricting the development of cloud computing,one of the most important which is data integrity checking. The current known protocols for data integrity checking are not suitable for big data which are so large and complex that it becomes difficult to check their integrity. In this paper,a new data integrity checking protocol for big data in the cloud storage is proposed,by improving Juel's protocol in which it only allows the data detection within limited times and bringing in the technology of erasure code to elevate the data's restorability significantly. By theoretical analysis,the protocol proposed is proved to have obvious advantages in data compu-ting and memory space of the users.