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There has been a significant growth in the interest to outsource data as well as operational services to clouds. Data outsourcing deprives the data owners of direct control over their data and this introduces new privacy risks. Data encryption has been introduced to address the data confidentiality issue. However, the management of encrypted data poses several challenges, the most important one is...
We notice, in our experiments with three malware samples of Darkcomet, Andromeda, and Zeus, that all three of them generate highly periodic network traffic. In addition, while there are a few works on intrusion detection which are based on this periodic behavior of malware, the prevalence of this behavior among the malware families in the wild is unknown. In this paper, we conduct an extensive experimental...
Oblivious data processing has a potential to make an extremely significant impact on the whole landscape of data processing, specifically in scenarios that could be classified as big data. Recent developments in the area of fully homomorphic cryptography make oblivious data processing much more realistic. However, performance implications could render these approaches uneconomical. Other approaches...
Database-as-a-Service is offered by many cloud service providers and could significantly reduce the IT infrastructure maintenance bills for enterprises. However, many hesitate migrating their data storage and processing to the cloud, and one of the reasons are data security issues. Encryption could provide sound security guarantees, but existing approaches often gravitate to one of the extremes: either...
Organizations and individuals nowadays are more and more willing to outsource their data to save storage and management costs, especially with the push of cloud computing which offers both storage and computation scalability. However, the data, once being released to a server, is no longer under its owner's control, and its privacy and security herein become a primary concern. To this end, users usually...
Secure and efficient data storage and computation for an outsourced database is a primary concern for users, especially with the push for cloud computing that affords both compute and resource scalability. Among the diverse secure building blocks for secure analytical computations on outsourced databases, the encrypted set intersection operation extracts common sensitive information from datasets...
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