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  本文關(guān)鍵詞： 產(chǎn)業(yè)鏈協(xié)同 Saas 密文檢索 自建索引 兩階段查詢　出處：《西南交通大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：產(chǎn)業(yè)鏈協(xié)同SaaS (Software as Service)平臺是一個主要面向中小型制造業(yè)的第三方服務(wù)平臺,為眾多的以制造業(yè)企業(yè)為龍頭與眾多協(xié)作供應(yīng)商、經(jīng)銷商、維修服務(wù)商形成的企業(yè)聯(lián)盟提供多種服務(wù)。各個聯(lián)盟中的企業(yè)成員使用平臺進(jìn)行業(yè)務(wù)協(xié)同和數(shù)據(jù)查詢,同時平臺與各個制造廠的內(nèi)部ERP(Enterprise Resource Planning企業(yè)資源管理系統(tǒng))系統(tǒng)之間進(jìn)行無縫集成,讓各個企業(yè)成員能夠在各自的內(nèi)部系統(tǒng)中對業(yè)務(wù)進(jìn)行進(jìn)一步的處理。平臺用戶在產(chǎn)業(yè)鏈協(xié)同SaaS平臺上進(jìn)行業(yè)務(wù)操作時,會產(chǎn)生大量業(yè)務(wù)數(shù)據(jù),比如采購訂單信息、車輛售后服務(wù)數(shù)據(jù)等,這些信息會先存儲在平臺的數(shù)據(jù)庫中,然后通過數(shù)據(jù)交換將新產(chǎn)生的數(shù)據(jù)傳遞到各個企業(yè)的內(nèi)部系統(tǒng)中。數(shù)據(jù)存儲在平臺數(shù)據(jù)庫時,對于企業(yè)而言就具有一定的數(shù)據(jù)安全隱患,因為其中一些數(shù)據(jù)是比較重要的,不能夠被其他個體獲取。為滿足用戶的需求,平臺需要對這些重要數(shù)據(jù)提供機(jī)密性保護(hù),最安全最常用的措施就是采用加密存儲方式,但加密的數(shù)據(jù)又會造成數(shù)據(jù)檢索的不便。針對產(chǎn)業(yè)鏈協(xié)同SaaS平臺中數(shù)據(jù)的加密及檢索需求,并結(jié)合多租戶關(guān)聯(lián)的平臺業(yè)務(wù)數(shù)據(jù)加密定制方案,本文提出了一種面向產(chǎn)業(yè)鏈協(xié)同SaaS平臺的密文檢索方案。該方案采用自建索引機(jī)制、兩階段查詢方法,通過字符串鄰接信息生成算法對字符型敏感字段明文建立索引信息,通過保序加密算法OPES (Order Preserving Encryption Scheme)對數(shù)值型敏感信息明文建立索引信息。索引中記錄了敏感字段的位置信息。檢索時先通過索引表獲取敏感信息的查詢結(jié)果初集,然后再進(jìn)行第二階段查詢,將查詢結(jié)果中的誤檢信息剔除,通過該方法實現(xiàn)少量解密就可以獲取正確的查詢結(jié)果。該方法目前已在KM售后服務(wù)系統(tǒng)與NJSC零部件采購系統(tǒng)中進(jìn)行了應(yīng)用驗證,能夠為用戶提供透明和準(zhǔn)確的檢索支持。
[Abstract]:The industry chain collaboration SaaS Software as Service platform is a third party service platform for small and medium-sized manufacturing enterprises, which is the leading supplier and distributor of manufacturing enterprises. The enterprise alliance formed by the maintenance service provider provides a variety of services. The enterprise members in each alliance use the platform for business collaboration and data query. At the same time, the platform integrates seamlessly with the internal ERP(Enterprise Resource Planning enterprise resource management system of each manufacturer. The platform users will produce a large amount of business data, such as purchase order information, when they operate on the industrial chain collaborative SaaS platform. The information is stored in the database of the platform, and then the newly generated data is transferred to the internal system of each enterprise through the exchange of data. When the data is stored in the database of the platform, Because some of the data are important and can not be obtained by other individuals. In order to meet the needs of users, the platform needs to provide confidential protection to these important data. The most secure and commonly used measure is to use encryption storage method, but the encrypted data will cause the inconvenience of data retrieval. In view of the data encryption and retrieval requirements in the industrial chain collaborative SaaS platform, Combined with the multi-tenant associated platform data encryption and customization scheme, this paper proposes a ciphertext retrieval scheme for industry chain collaborative SaaS platform, which adopts self-built indexing mechanism and two-stage query method. The character sensitive fields are indexed by string adjacency information generation algorithm. In this paper, the index information of numeric sensitive information is established by OPES order Preserving Encryption Schema. The location information of sensitive field is recorded in the index. The first set of query results of sensitive information is obtained by index table. Then the second stage of the query is carried out to remove the misinformation from the result of the query. The method has been applied to km after-sales service system and NJSC parts purchasing system, which can provide users with transparent and accurate retrieval support.
【學(xué)位授予單位】：西南交通大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TP311.13;TP309

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本文編號：1535841