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Security and privacy concerns in computer systems have grown in importance with the ubiquity of connected devices. TEEs provide security guarantees based on cryptographic constructs built in hardware. Intel software guard extensions (SGX),…

Cryptography and Security · Computer Science 2020-03-12 Rafael Pereira Pires

Searchable symmetric encryption (SSE) for multi-owner model draws much attention as it enables data users to perform searches over encrypted cloud data outsourced by data owners. However, implementing secure and precise query, efficient…

Cryptography and Security · Computer Science 2019-08-13 Kai Chen , Zhongrui Lin , Jian Wan , Lei Xu , Chungen Xu

Ciphertext-policy hierarchical attribute-based encryption (CP-HABE) is a promising cryptographic primitive for enforcing the fine-grained access control with scalable key delegation and user revocation mechanisms on the outsourced encrypted…

Cryptography and Security · Computer Science 2018-10-16 Mohammad Ali , Javad Mohajeri , Mohammad-Reza Sadeghi

Storing data in the cloud poses a number of privacy issues. A way to handle them is supporting data replication and distribution on the cloud via a local, centrally synchronized storage. In this paper we propose to use an in-memory RDBMS…

Cryptography and Security · Computer Science 2011-09-19 Francesco Pagano , Davide Pagano

Cloud data storage solutions offer customers cost-effective and reduced data management. While attractive, data security issues remain to be a core concern. Traditional encryption protects stored documents, but hinders simple…

Cryptography and Security · Computer Science 2023-06-28 Marc Damie , Florian Hahn , Andreas Peter

Several researchers have proposed solutions for secure data outsourcing on the public clouds based on encryption, secret-sharing, and trusted hardware. Existing approaches, however, exhibit many limitations including high computational…

Databases · Computer Science 2018-12-06 Sharad Mehrotra , Kerim Yasin Oktay , Shantanu Sharma

Fully Homomorphic Encryption (FHE) allows a third party to perform arbitrary computations on encrypted data, learning neither the inputs nor the computation results. Hence, it provides resilience in situations where computations are carried…

Cryptography and Security · Computer Science 2022-02-04 Alexander Viand , Patrick Jattke , Anwar Hithnawi

\emph{Secure Search} is the problem of retrieving from a database table (or any unsorted array) the records matching specified attributes, as in SQL SELECT queries, but where the database and the query are encrypted. Secure search has been…

Cryptography and Security · Computer Science 2017-08-22 Adi Akavia , Dan Feldman , Hayim Shaul

The following paper presents a holistic approach to the processing of entangled links within entanglement based quantum key distribution protocols, whose security relies on the Bell inequality. We investigate the interactions, and the…

Quantum Physics · Physics 2026-05-07 Marcel Kokorsch , Guido Dietl

Cloud computing provisions computer resources at a cost-effective way based on demand. Therefore it has become a viable solution for big data analytics and artificial intelligence which have been widely adopted in various domain science.…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-05-30 Naweiluo Zhou , Florent Dufour , Vinzent Bode , Peter Zinterhof , Nicolay J Hammer , Dieter Kranzlmüller

In this paper, we propose a practically efficient model for securely computing rank-based statistics, e.g., median, percentiles and quartiles, over distributed datasets in the malicious setting without leaking individual data privacy. Based…

Cryptography and Security · Computer Science 2023-02-17 Nan Wang , Sid Chi-Kin Chau

Cloud computing has made it possible for a user to be able to select a computing service precisely when needed. However, certain factors such as security of data and regulatory issues will impact a user's choice of using such a service. A…

Distributed, Parallel, and Cluster Computing · Computer Science 2011-05-11 Vaibhav Khadilkar , Murat Kantarcioglu , Bhavani Thuraisingham , Sharad Mehrotra

To counter societal and economic problems caused by data silos on the Web, efforts such as Solid strive to reclaim private data by storing it in permissioned documents over a large number of personal vaults across the Web. Building…

Databases · Computer Science 2023-02-15 Ruben Taelman , Ruben Verborgh

Crowd-sourcing is a powerful solution for finding correct answers to expensive and unanswered queries in databases, including those with uncertain and incomplete data. Attempts to use crowd-sourcing to exploit human abilities to process…

Databases · Computer Science 2022-04-19 Marwa B. Swidan , Ali A. Alwan , Yonis Gulzar , Abedallah Zaid Abualkishik

We present sec-cs, a hash-table-like data structure for file contents on untrusted storage that is both secure and storage-efficient. We achieve authenticity and confidentiality with zero storage overhead using deterministic authenticated…

Cryptography and Security · Computer Science 2016-06-13 Dominik Leibenger , Christoph Sorge

A large amount of data and applications are migrated by researchers, stakeholders, academia, and business organizations to the cloud environment due to its large variety of services, which involve the least maintenance cost, maximum…

Cryptography and Security · Computer Science 2023-06-16 Rishabh Gupta , Deepika Saxena , Ashutosh Kumar Singh

With the increasing number of mobile applications and the popularity of cloud computing, the combination of these two techniques that named mobile cloud computing (MCC) attracts great attention in recent years. A promising public key…

Cryptography and Security · Computer Science 2018-10-26 Jing Li , Zhitao Guan , Xiaojiang Du , Zijian Zhang , Jun Wu

Database research and development rely heavily on realistic user workloads for benchmarking, instance optimization, migration testing, and database tuning. However, acquiring real-world SQL queries is notoriously challenging due to strict…

Databases · Computer Science 2026-02-04 Zhengle Wang , Yanfei Zhang , Chunwei Liu

Data outsourcing allows data owners to keep their data at \emph{untrusted} clouds that do not ensure the privacy of data and/or computations. One useful framework for fault-tolerant data processing in a distributed fashion is MapReduce,…

Databases · Computer Science 2019-08-07 Shlomi Dolev , Peeyush Gupta , Yin Li , Sharad Mehrotra , Shantanu Sharma

Homomorphic encryption (HE) has found extensive utilization in federated learning (FL) systems, capitalizing on its dual advantages: (i) ensuring the confidentiality of shared models contributed by participating entities, and (ii) enabling…

Cryptography and Security · Computer Science 2023-08-10 Dongfang Zhao