一种基于ORAM的数据可恢复性证明与访问模式的隐藏

随着云计算的发展与应用，越来越多的客户选择云存储作为存储媒质，因此，数据的完整性和私密性成为客户关心的主要问题。基于无关RAM模型机提出一种新的结构．将客户文件分割成大小相等的数据块．每个数据块在云存储中有两个备份，且随机地存储在不同的文件中，以保证数据的完整性。利用同态散列算法验证数据的可持有性，通过无关RAM隐藏客户对服务器的访问模式，敌手无法从客户的数据访问模式中获取有用的信息，从而实现了数据的私密性。...

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Bibliographic Details
Published in电信科学 Vol. 29; no. 12; pp. 101 - 106
Main Author 李红卫 叶飞跃 陈丹
Format Journal Article
LanguageChinese
Published 中国通信学会 01.12.2013
人民邮电出版社有限公司
江苏理工学院计算机工程学院 常州213001
江苏理工学院云计算与智能信息处理常州市重点实验室 常州213001
Subjects
云存储
同态散列
数据恢复
无关RAM
访问模式
同态散列
无关RAM
云存储
访问模式
数据恢复
data recovery
homomorphic hashing
cloud storage
access pattern
oblivious RAM
Online AccessGet full text
ISSN1000-0801
DOI10.3969/j.issn.1000-0801.2013.12.016

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Summary:随着云计算的发展与应用，越来越多的客户选择云存储作为存储媒质，因此，数据的完整性和私密性成为客户关心的主要问题。基于无关RAM模型机提出一种新的结构．将客户文件分割成大小相等的数据块．每个数据块在云存储中有两个备份，且随机地存储在不同的文件中，以保证数据的完整性。利用同态散列算法验证数据的可持有性，通过无关RAM隐藏客户对服务器的访问模式，敌手无法从客户的数据访问模式中获取有用的信息，从而实现了数据的私密性。
Bibliography:With the development and application of cloud computing, more and more customers choose cloud storage as the storage medium, therefore, data integrity and privacy become a major problem that the customers concern. A new structure based on oblivious RAM model was proposed. The customer file was composed by data blocks of equal-sized, and each data block had two backups in the cloud storage, and they were randomly stored in different cloud files in order to ensure data integrity. Oblivious RAM allowed a client to hide its data access patterns from an untrusted server. The data possession was verified to utilize homomorphic hash algorithm. The adversary can not obtain useful information from the client access data pattern, and the data privacy is guaranteed.
Li Hongwei, Ye Feiyue, Chen Dan （ 1. School of Computer Engineering, Jiangsu University of Technology, Changzhou 213001, China; 2. Key Laboratory of Cloud Computing ＆ Intelligent Information Processing of Changzhou City, Jiangsu University of Teehnology, Chan
ISSN:1000-0801
DOI:10.3969/j.issn.1000-0801.2013.12.016