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Pavan: A privacy-preserving system for DB-as-a-Service
Author(s) -
Somayeh Sobati Moghadam,
Amjad Fayoumi,
Peyman Vafadoost
Publication year - 2020
Publication title -
ict express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.733
H-Index - 22
ISSN - 2405-9595
DOI - 10.1016/j.icte.2020.11.003
Subject(s) - homomorphic encryption , computer science , encryption , cloud computing , overhead (engineering) , computer security , information privacy , data sharing , database , client side encryption , computer network , on the fly encryption , operating system , medicine , alternative medicine , pathology
In a cloud database system which employs the DataBase-as-a-Service model, security is a great challenge. Nevertheless, the current encryption systems are only partially homomorphic, which are designed to enable only one particular type of computation to be carried out on encrypted data. To address these concerns, we introduce Pavan, a system that securely stores data in a cloud database while still enabling encrypted data to be processed. Pavan enables query processing with an order-preserving partially homomorphic encryption scheme. We show that Pavan is a practical system that preserves data privacy with reasonable overhead for cloud outsourcing scenarios.

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