Security data retrieval method based on oblivious ciphertext inverted index
The invention discloses a security data retrieval method based on an oblivious ciphertext inverted index. The method comprises the following steps: 1, constructing the oblivious ciphertext inverted index; 2, writing the data into the oblivious ciphertext inverted index; and 3, retrieving the cloud d...
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| creator | WANG JIN CAI ZHUBIN ZHANG JINGYU LI RUI ZHENG SHAOYING WU ZHIQIANG LI WENJUN |
| description | The invention discloses a security data retrieval method based on an oblivious ciphertext inverted index. The method comprises the following steps: 1, constructing the oblivious ciphertext inverted index; 2, writing the data into the oblivious ciphertext inverted index; and 3, retrieving the cloud data according to the communication protocol, wherein the step 1 comprises the steps that a cloud obligate random access tree ORAM tree is constructed, a user side buffer area is constructed, a user side keyword hash table is constructed, the cloud obligate random access tree is used for storing a ciphertext inverted index, and the user side buffer area and the user side keyword hash table are used for temporarily storing data; and the step 2 comprises the step of writing the data in the buffer area of the user side into an ORAM tree path of the cloud side through expelling operation.
本发明公开了一种基于不经意密文倒排索引的安全数据检索方法，包括以下步骤：步骤1、构建不经意密文倒排索引；步骤2、将数据写入不经意密文倒排索引中；步骤3、根据通信协议对云端数据进行检索，其中，步骤1包括：构建云端不经意随机访问树ORAM tree、构建用户端缓冲区和构 |
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本发明公开了一种基于不经意密文倒排索引的安全数据检索方法，包括以下步骤：步骤1、构建不经意密文倒排索引；步骤2、将数据写入不经意密文倒排索引中；步骤3、根据通信协议对云端数据进行检索，其中，步骤1包括：构建云端不经意随机访问树ORAM tree、构建用户端缓冲区和构</description><language>chi ; eng</language><subject>CALCULATING ; COMPUTING ; COUNTING ; ELECTRIC DIGITAL DATA PROCESSING ; PHYSICS</subject><creationdate>2021</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20211130&DB=EPODOC&CC=CN&NR=113722366A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20211130&DB=EPODOC&CC=CN&NR=113722366A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>WANG JIN</creatorcontrib><creatorcontrib>CAI ZHUBIN</creatorcontrib><creatorcontrib>ZHANG JINGYU</creatorcontrib><creatorcontrib>LI RUI</creatorcontrib><creatorcontrib>ZHENG SHAOYING</creatorcontrib><creatorcontrib>WU ZHIQIANG</creatorcontrib><creatorcontrib>LI WENJUN</creatorcontrib><title>Security data retrieval method based on oblivious ciphertext inverted index</title><description>The invention discloses a security data retrieval method based on an oblivious ciphertext inverted index. The method comprises the following steps: 1, constructing the oblivious ciphertext inverted index; 2, writing the data into the oblivious ciphertext inverted index; and 3, retrieving the cloud data according to the communication protocol, wherein the step 1 comprises the steps that a cloud obligate random access tree ORAM tree is constructed, a user side buffer area is constructed, a user side keyword hash table is constructed, the cloud obligate random access tree is used for storing a ciphertext inverted index, and the user side buffer area and the user side keyword hash table are used for temporarily storing data; and the step 2 comprises the step of writing the data in the buffer area of the user side into an ORAM tree path of the cloud side through expelling operation.
本发明公开了一种基于不经意密文倒排索引的安全数据检索方法，包括以下步骤：步骤1、构建不经意密文倒排索引；步骤2、将数据写入不经意密文倒排索引中；步骤3、根据通信协议对云端数据进行检索，其中，步骤1包括：构建云端不经意随机访问树ORAM tree、构建用户端缓冲区和构</description><subject>CALCULATING</subject><subject>COMPUTING</subject><subject>COUNTING</subject><subject>ELECTRIC DIGITAL DATA PROCESSING</subject><subject>PHYSICS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2021</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZPAOTk0uLcosqVRISSxJVChKLSnKTC1LzFHITS3JyE9RSEosTk1RyM9TyE_KySzLzC8tVkjOLMhILSpJrShRyMwrA7FSgIyU1AoeBta0xJziVF4ozc2g6OYa4uyhm1qQH59aXJCYnJqXWhLv7GdoaGxuZGRsZuZoTIwaAKH4NgI</recordid><startdate>20211130</startdate><enddate>20211130</enddate><creator>WANG JIN</creator><creator>CAI ZHUBIN</creator><creator>ZHANG JINGYU</creator><creator>LI RUI</creator><creator>ZHENG SHAOYING</creator><creator>WU ZHIQIANG</creator><creator>LI WENJUN</creator><scope>EVB</scope></search><sort><creationdate>20211130</creationdate><title>Security data retrieval method based on oblivious ciphertext inverted index</title><author>WANG JIN ; CAI ZHUBIN ; ZHANG JINGYU ; LI RUI ; ZHENG SHAOYING ; WU ZHIQIANG ; LI WENJUN</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN113722366A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2021</creationdate><topic>CALCULATING</topic><topic>COMPUTING</topic><topic>COUNTING</topic><topic>ELECTRIC DIGITAL DATA PROCESSING</topic><topic>PHYSICS</topic><toplevel>online_resources</toplevel><creatorcontrib>WANG JIN</creatorcontrib><creatorcontrib>CAI ZHUBIN</creatorcontrib><creatorcontrib>ZHANG JINGYU</creatorcontrib><creatorcontrib>LI RUI</creatorcontrib><creatorcontrib>ZHENG SHAOYING</creatorcontrib><creatorcontrib>WU ZHIQIANG</creatorcontrib><creatorcontrib>LI WENJUN</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>WANG JIN</au><au>CAI ZHUBIN</au><au>ZHANG JINGYU</au><au>LI RUI</au><au>ZHENG SHAOYING</au><au>WU ZHIQIANG</au><au>LI WENJUN</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Security data retrieval method based on oblivious ciphertext inverted index</title><date>2021-11-30</date><risdate>2021</risdate><abstract>The invention discloses a security data retrieval method based on an oblivious ciphertext inverted index. The method comprises the following steps: 1, constructing the oblivious ciphertext inverted index; 2, writing the data into the oblivious ciphertext inverted index; and 3, retrieving the cloud data according to the communication protocol, wherein the step 1 comprises the steps that a cloud obligate random access tree ORAM tree is constructed, a user side buffer area is constructed, a user side keyword hash table is constructed, the cloud obligate random access tree is used for storing a ciphertext inverted index, and the user side buffer area and the user side keyword hash table are used for temporarily storing data; and the step 2 comprises the step of writing the data in the buffer area of the user side into an ORAM tree path of the cloud side through expelling operation.
本发明公开了一种基于不经意密文倒排索引的安全数据检索方法，包括以下步骤：步骤1、构建不经意密文倒排索引；步骤2、将数据写入不经意密文倒排索引中；步骤3、根据通信协议对云端数据进行检索，其中，步骤1包括：构建云端不经意随机访问树ORAM tree、构建用户端缓冲区和构</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CALCULATING COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING PHYSICS |
| title | Security data retrieval method based on oblivious ciphertext inverted index |
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