An Index Structure for Private Data Outsourcing
نویسندگان
چکیده
Data outsourcing provides companies a cost effective method for their data to be stored, managed, and maintained by a third-party. Data outsourcing offers many economical benefits, but also introduces several privacy concerns. Many solutions have been proposed for maintaining privacy while outsourcing data in the data as plain-text model. We propose a method that can maintain a similar level of privacy while improving upon the query performance of previous solutions. The motivating principle behind our solution is that if the data owner possesses a small amount of secure local storage, it can be used as a pseudo-index table to improve query performance for selection queries involving conjunctions. We offer a heuristic approach for calculating the required storage resources and provide experimental analysis of the scheme.
منابع مشابه
The Impact of Outsourcing the Government Agencies Activities on the Organizational Structure
The purpose of the present study is to investigate the effect of outsourcing the activities of government agencies on organizational structure. The current study is a descriptive-survey research implemented by the field method. The statistical population of the study consisted of managers of governmental organizations of Isfahan province. The questionnaires were distributed based on simple rand...
متن کاملSupporting concurrency and multiple indexes in private access to outsourced data
Data outsourcing has recently emerged as a successful solution allowing individuals and organizations to delegate data and service management to external third parties. A major challenge in the data outsourcing scenario is how to guarantee proper privacy protection against the external server. Recent promising approaches rely on the organization of data in indexing structures that use encryptio...
متن کاملطراحی نظام برونسپاری نوسازی بافتهای فرسوده شهر تهران
Renovation of urban distressed areas has been on the government and municipalities’ agenda because of the extent of it in the country and probability of large and average earthquakes in it and the vulnerability of these areas. So due to intersectional nature of the subject and necessity of Cooperation between actors, it is necessary to design an integrated management system in this scope. Also ...
متن کاملSeparating indexes from data: a distributed scheme for secure database outsourcing
Database outsourcing is an idea to eliminate the burden of database management from organizations. Since data is a critical asset of organizations, preserving its privacy from outside adversary and untrusted server should be warranted. In this paper, we present a distributed scheme based on storing shares of data on different servers and separating indexes from data on a distinct server. Shamir...
متن کاملA Trust Based Probabilistic Method for Efficient Correctness Verification in Database Outsourcing
Correctness verification of query results is a significant challenge in database outsourcing. Most of the proposed approaches impose high overhead, which makes them impractical in real scenarios. Probabilistic approaches are proposed in order to reduce the computation overhead pertaining to the verification process. In this paper, we use the notion of trust as the basis of our probabilistic app...
متن کامل