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Privacy concerns in outsourced cloud databases have become more and more important recently and many efficient and scalable query processing methods over encrypted data have been proposed. However, there is very limited work on how to…

Cryptography and Security · Computer Science 2018-01-22 Xianrui Meng , Haohan Zhu , George Kollios

A quantum algorithm for general combinatorial search that uses the underlying structure of the search space to increase the probability of finding a solution is presented. This algorithm shows how coherent quantum systems can be matched to…

Quantum Physics · Physics 2009-10-30 Tad Hogg

Fully homomorphic encryption (FHE) enables a simple, attractive framework for secure search. Compared to other secure search systems, no costly setup procedure is necessary; it is sufficient for the client merely to upload the encrypted…

Cryptography and Security · Computer Science 2021-09-17 Seung Geol Choi , Dana Dachman-Soled , S. Dov Gordon , Linsheng Liu , Arkady Yerukhimovich

Searchable encryption (SE) is one of the key enablers for building encrypted databases. It allows a cloud server to search over encrypted data without decryption. Dynamic SE additionally includes data addition and deletion operations to…

Cryptography and Security · Computer Science 2020-04-13 Viet Vo , Shangqi Lai , Xingliang Yuan , Shi-Feng Sun , Surya Nepal , Joseph K. Liu

\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 family of Information Dispersal Algorithms is applied to distributed systems for secure and reliable storage and transmission. In comparison with perfect secret sharing it achieves a significantly smaller memory overhead and better…

Cryptography and Security · Computer Science 2017-05-30 Katarzyna Kapusta , Gerard Memmi , Hassan Noura

Caches have been exploited to leak secret information due to the different times they take to handle memory accesses. Cache timing attacks include non-speculative cache side and covert channel attacks and cache-based speculative execution…

Cryptography and Security · Computer Science 2024-04-23 Guangyuan Hu , Ruby B. Lee

Outsourcing data storage to the remote cloud can be an economical solution to enhance data management in the smart grid ecosystem. To protect the privacy of data, the utility company may choose to encrypt the data before uploading them to…

Cryptography and Security · Computer Science 2018-11-01 Jiangnan Li , Xiangyu Niu , Jinyuan Stella Sun

At present, the cloud storage used in searchable symmetric encryption schemes (SSE) is provided in a private way, which cannot be seen as a true cloud. Moreover, the cloud server is thought to be credible, because it always returns the…

Cryptography and Security · Computer Science 2017-11-21 Huige Li , Fangguo Zhang , Jiejie He , Haibo Tian

Public key authenticated encryption with keyword search (PAEKS) represents a significant advancement of secure and searchable data sharing in public network systems, such as medical systems. It can effectively mitigate the risk of keyword…

Cryptography and Security · Computer Science 2025-03-24 Jiayin Cai , Xingwen Zhao , Dexin Li , Hui Li , Kai Fan

Rapid response, namely low latency, is fundamental in search applications; it is particularly so in interactive search sessions, such as those encountered in conversational settings. An observation with a potential to reduce latency asserts…

Information Retrieval · Computer Science 2022-11-28 Ophir Frieder , Ida Mele , Cristina Ioana Muntean , Franco Maria Nardini , Raffaele Perego , Nicola Tonellotto

We consider the problem of performing predecessor searches in a bounded universe while achieving query times that depend on the distribution of queries. We obtain several data structures with various properties: in particular, we give data…

Data Structures and Algorithms · Computer Science 2017-07-06 Prosenjit Bose , Rolf Fagerberg , John Howat , Pat Morin

Cloud computing has become a potential resource for businesses and individuals to outsource their data to remote but highly accessible servers. However, potentials of the cloud services have not been fully unleashed due to users' concerns…

Cryptography and Security · Computer Science 2018-11-27 Hoang Pham , Jason Woodworth , Mohsen Amini Salehi

Finding patterns in data and being able to retrieve information from those patterns is an important task in Information retrieval. Complex search requirements which are not fulfilled by simple string matching and require exploring certain…

Information Retrieval · Computer Science 2017-10-03 Amanpreet Singh , Karthik Venkatesan , Simranjyot Singh Gill

Despite the linearity of its encoding, compressed sensing may be used to provide a limited form of data protection when random encoding matrices are used to produce sets of low-dimensional measurements (ciphertexts). In this paper we…

Information Theory · Computer Science 2016-11-15 Valerio Cambareri , Mauro Mangia , Fabio Pareschi , Riccardo Rovatti , Gianluca Setti

The amount of data for processing and categorization grows at an ever increasing rate. At the same time the demand for collaboration and transparency in organizations, government and businesses, drives the release of data from internal…

Machine Learning · Computer Science 2020-08-26 Jan Neerbek

Distributed systems often serve dynamic workloads and resource demands evolve over time. Such a temporal behavior stands in contrast to the static and demand-oblivious nature of most data structures used by these systems. In this paper, we…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-11-19 Arash Pourdamghani , Chen Avin , Robert Sama , Maryam Shiran , Stefan Schmid

We construct efficient data structures that are resilient against a constant fraction of adversarial noise. Our model requires that the decoder answers most queries correctly with high probability and for the remaining queries, the decoder…

Data Structures and Algorithms · Computer Science 2010-01-27 Victor Chen , Elena Grigorescu , Ronald de Wolf

We present here new mechanisms for hashing data via binary embeddings. Contrary to most of the techniques presented before, the embedding matrix of our mechanism is highly structured. That enables us to perform hashing more efficiently and…

Data Structures and Algorithms · Computer Science 2015-05-14 Krzysztof Choromanski

Security has become a significant concern with the increased popularity of cloud storage services. It comes with the vulnerability of being accessed by third parties. Security is one of the major hurdles in the cloud server for the user…

Cryptography and Security · Computer Science 2023-06-07 Mazharul Islam