本文關(guān)鍵詞：云存儲(chǔ)加密數(shù)據(jù)去重刪除所有權(quán)證明方法　出處：《計(jì)算機(jī)研究與發(fā)展》2015年01期 　論文類型：期刊論文

  更多相關(guān)文章： 云存儲(chǔ) 去重復(fù)化 可證明所有權(quán) 抽樣檢測(cè) 可證明安全

【摘要】：隨著云計(jì)算服務(wù)的廣泛應(yīng)用,為了節(jié)省磁盤空間和帶寬,出現(xiàn)了一種新技術(shù):客戶端去重復(fù)化.但近期發(fā)現(xiàn)了一種針對(duì)該技術(shù)的新型攻擊:攻擊者只需獲得原始文件的一個(gè)摘要信息,即文件的散列值,即可從服務(wù)器端獲得全部原始文件.為了解決上述安全問題,提出了一個(gè)密碼學(xué)安全的、高效的證明方案來支持多客戶端加密文件的去重復(fù)刪除場(chǎng)景.通過抽樣檢測(cè)、動(dòng)態(tài)系數(shù)和隨機(jī)選擇的原始文件檢索值使方案達(dá)到安全與高效的目標(biāo);同時(shí),還提出了一種巧妙的分布式捎帶技術(shù),將文件加密密鑰的分發(fā)過程與所有權(quán)證明過程同步實(shí)施.最后,對(duì)所提方案進(jìn)行了嚴(yán)格的安全性證明和深入的性能分析與仿真,結(jié)果表明,所提的方案不僅能達(dá)到可證明的安全級(jí)別,而且執(zhí)行效率較高,尤其在減少客戶端計(jì)算負(fù)載方面.
[Abstract]:With the wide application of cloud computing services, in order to save disk space and bandwidth. A new technology has emerged: client deduplication, but recently a new attack against this technique has been discovered: an attacker only needs to obtain a summary information of the original file, that is, the hash value of the file. We can get all the original files from the server. In order to solve the security problem mentioned above, we propose a cryptographic secure. The efficient proof scheme supports the multi-client encryption file to delete the scene repeatedly. Through sampling detection, dynamic coefficient and random selection of the original file retrieval value, the scheme can achieve the goal of security and efficiency. At the same time, an ingenious distributed piggyback technology is proposed to synchronize the distribution of file encryption keys with the process of proof of ownership. Finally. Strict security proof and in-depth performance analysis and simulation are carried out on the proposed scheme. The results show that the proposed scheme can not only achieve a provable security level, but also have a high execution efficiency. Especially in reducing client computing load.
【作者單位】： 西安電子科技大學(xué)計(jì)算機(jī)學(xué)院;
【基金】：國(guó)家自然科學(xué)基金青年基金項(xiàng)目(61303219,61100230);國(guó)家自然科學(xué)基金重點(diǎn)項(xiàng)目(60633020) 中央高校基本科研業(yè)務(wù)費(fèi)專項(xiàng)資金項(xiàng)目(K5051303007) 陜西省自然科學(xué)基金項(xiàng)目(2014JQ8295)
【分類號(hào)】：TP333;TP309
【正文快照】： 隨著云計(jì)算服務(wù)的廣泛應(yīng)用越來越多的數(shù)據(jù)被存儲(chǔ)在遠(yuǎn)端服務(wù)上,所以需要有新的技術(shù)來節(jié)省這種存儲(chǔ)模式下的磁盤空間和網(wǎng)絡(luò)帶寬.在這樣的需求背景下,出現(xiàn)了一個(gè)關(guān)鍵的技術(shù)概念:去重復(fù)化[1].該技術(shù)的核心思想是服務(wù)器只存儲(chǔ)文件的一份拷貝,而無論有多少個(gè)客戶端想存儲(chǔ)同一個(gè)文件,，

本文編號(hào)：1386781