An Efficient Top-k Query Processing Algorithm over Encrypted Outsourced-Data in the Cloud
نویسندگان
چکیده
منابع مشابه
Top-k Query Processing Over Outsourced Encrypted Data
Nowadays, cloud data outsourcing provides users and companies with powerful capabilities to store and process their data in third-party data centers. However, the privacy of the outsourced data is not guaranteed by the cloud providers. One solution for protecting the user data against security attacks is to encrypt the data before being sent to the cloud servers. Then, the main problem is to ev...
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Data is the central asset of today’s dynamically operating organization and their business. This data is usually stored in database. A major consideration is applied on the security of that data from the unauthorized access and intruders. Data encryption is a strong option for security of data in database and especially in those organizations where security risks are high. But there is a potent...
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For both convenience and security, more and more users encrypt their sensitive data before outsourcing it to a third party such as cloud storage service. However, searching for the desired documents becomes problematic since it is costly to download and decrypt each possibly needed document to check if it contains the desired content. An informative query-biased preview feature, as applied in m...
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We study the efficient evaluation of top-k queries over data items, where the score of each item is dynamically computed by applying an item-specific function whose parameter value is specified in the query. For example, online retail stores rank items by price, which may be a function of the quantity being queried: “Stay 3 nights, get a 15% discount on double-bed rooms.” Similarly, while ranki...
متن کاملSecure Top-k Query Processing on Encrypted Databases
Privacy concerns in outsourced cloud databases have become more and more important recentlyand many efficient and scalable query processing methods over encrypted data have been proposed.However, there is very limited work on how to securely process top-k ranking queries over encrypteddatabases in the cloud. In this paper, we focus exactly on this problem: secure and efficient proce...
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ژورنال
عنوان ژورنال: KIPS Transactions on Software and Data Engineering
سال: 2015
ISSN: 2287-5905
DOI: 10.3745/ktsde.2015.4.12.543