【摘要】：在可搜索加密的云服務(wù)中,數(shù)據(jù)擁有者往往更希望將數(shù)據(jù)文件以密文的形式分別存儲(chǔ)到多個(gè)云服務(wù)器,從而提高授權(quán)用戶對(duì)云端數(shù)據(jù)的檢索效率以及對(duì)大型數(shù)據(jù)的處理能力�；诖�,該文提出一種基于云存儲(chǔ)的多服務(wù)器多關(guān)鍵詞多用戶可搜索加密方案,該方案被證明是IND-CKA(adaptive Chosen Keyword Attack)安全的,且同時(shí)具備關(guān)鍵詞陷門(mén)的安全性。相對(duì)于單服務(wù)器可搜索加密,該方案在保證數(shù)據(jù)機(jī)密性的前提下能夠?qū)ζ溥M(jìn)行高效檢索,并能夠在關(guān)鍵字索引中不完全包含所檢索的多個(gè)關(guān)鍵詞或者不存在某個(gè)文件包含所有被檢索的多個(gè)關(guān)鍵詞的情況下,更精確地進(jìn)行檢索。
[Abstract]:In searchable and encrypted cloud services, data owners often prefer to store data files in ciphertext to multiple cloud servers in order to improve the retrieval efficiency of cloud data and the processing ability of large scale data. Based on this, a multi-server multi-keyword searchable encryption scheme based on cloud storage is proposed. The scheme is proved to be IND-CKA (adaptive Chosen Keyword Attack) secure and has the security of keyword trapping at the same time. Compared with the searchable encryption on a single server, this scheme can efficiently retrieve the data under the premise of ensuring the confidentiality of the data. And it can retrieve more accurately in the case that the keyword index does not completely contain the retrieved multiple keywords or if a file does not contain all the retrieved keywords.
【作者單位】： 南京郵電大學(xué)計(jì)算機(jī)學(xué)院;江蘇省無(wú)線傳感網(wǎng)高技術(shù)研究重點(diǎn)實(shí)驗(yàn)室;
【基金】：國(guó)家自然科學(xué)基金(61373017,61373138,61300240,61672297) 國(guó)家博士后基金(2015M570468,2016T90485) 江蘇省自然科學(xué)基金(BK20151511) 江蘇省六大人才高峰項(xiàng)目(DZXX-017) 江蘇省無(wú)線傳感網(wǎng)高技術(shù)研究重點(diǎn)實(shí)驗(yàn)室基金(WSNLBZY 201516) 江蘇省研究生培養(yǎng)創(chuàng)新工程項(xiàng)目(KYLX15_0853)~~
【分類號(hào)】：TP333;TP309.7

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