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We introduce a formal model for order queries on lists in zero knowledge in the traditional authenticated data structure model. We call this model Privacy-Preserving Authenticated List (PPAL). In this model, the queries are performed on the…

Cryptography and Security · Computer Science 2014-08-19 Esha Ghosh , Olga Ohrimenko , Roberto Tamassia

As organizations struggle with processing vast amounts of information, outsourcing sensitive data to third parties becomes a necessity. To protect the data, various cryptographic techniques are used in outsourced database systems to ensure…

Cryptography and Security · Computer Science 2021-09-29 Dmytro Bogatov , Georgios Kellaris , George Kollios , Kobbi Nissim , Adam O'Neill

Decentralized Web, or DWeb, is envisioned as a promising future of the Web. Being decentralized, there are no dedicated web servers in DWeb; Devices that retrieve web contents also serve their cached data to peer devices with straight…

Information Retrieval · Computer Science 2018-09-05 Ziliang Lai , Chris Liu , Eric Lo , Ben Kao , Siu-Ming Yiu

Embedding inversion, i.e., reconstructing text given its embedding and black-box access to the embedding encoder, is a fundamental problem in both NLP and security. From the NLP perspective, it helps determine how much semantic information…

Computation and Language · Computer Science 2025-04-02 Collin Zhang , John X. Morris , Vitaly Shmatikov

Serverless Computing is a virtualisation-related paradigm that promises to simplify application management and to solve the last challenges in the field: scale down and easy to use. The implied cost reduction, coupled with a simplified…

Cryptography and Security · Computer Science 2022-01-28 Eduard Marin , Diego Perino , Roberto Di Pietro

Bitcoin brings a new type of digital currency that does not rely on a central system to maintain transactions. By benefiting from the concept of decentralized ledger, users who do not know or trust each other can still conduct transactions…

Cryptography and Security · Computer Science 2019-09-17 Zhimin Gao , Lei Xu , Keshav Kasichainula , Lin Chen , Bogdan Carbunar , Weidong Shi

Data leaks and breaches are on the rise. They result in huge losses of money for businesses like the movie industry, as well as a loss of user privacy for businesses dealing with user data like the pharmaceutical industry. Preventing data…

Cryptography and Security · Computer Science 2020-12-14 Loïc Miller , Pascal Mérindol , Antoine Gallais , Cristel Pelsser

Fintech provides technological services to increase operational efficiency in financial institutions, but traditional perimeter-based defense mechanisms are insufficient against evolving cyber threats like insider attacks, malware…

Cryptography and Security · Computer Science 2025-07-29 Avinash Singh , Vikas Pareek , Asish Sharma

Homomorphic encryption (HE) enables computations directly on encrypted data, offering strong cryptographic guarantees for secure and privacy-preserving data storage and query execution. However, despite its theoretical power, practical…

Databases · Computer Science 2026-03-02 Boram Jung , Yuliang Li , Hung-Wei Tseng

Location-based systems that combine encrypted geographic search with zero-knowledge proximity proofs typically treat the two phases as independent. Under an honest-but-curious server, this leaves an authorization provenance gap: once…

Cryptography and Security · Computer Science 2026-04-07 Yoshiyuki Ootani

Factorised databases are relational databases that use compact factorised representations at the physical layer to reduce data redundancy and boost query performance. This paper introduces FDB, an in-memory query engine for…

Databases · Computer Science 2012-03-14 Nurzhan Bakibayev , Dan Olteanu , Jakub Závodný

Farmers need to be efficient and dedicate a lot of time in order to sustain the quality of their animals which are in their care. The most convenient and good quality - price ratio should be chosen for the feed of animals. Blockchain is…

Computers and Society · Computer Science 2021-01-07 Monica-Paula Marin , Iuliana Marin , Livia Vidu

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

Modern cloud OLTP databases have sought performance primarily through user-space optimization - separating storage and compute layers, or distributing transactions across multiple nodes using consensus algorithms. This paper turns attention…

Databases · Computer Science 2026-04-01 Mitsumasa Kondo

As high-dimensional vector data increasingly surpasses the processing capabilities of traditional database management systems, Vector Databases (VDBs) have emerged and become tightly integrated with large language models, being widely…

Zero-Knowledge Proofs (ZKPs) are a cryptographic primitive that allows a prover to demonstrate knowledge of a secret value to a verifier without revealing anything about the secret itself. ZKPs have shown to be an extremely powerful tool,…

Cryptography and Security · Computer Science 2025-04-29 Nojan Sheybani , Anees Ahmed , Michel Kinsy , Farinaz Koushanfar

Unstructured data(e.g., images, videos, PDF files, etc.) contain semantic information, for example, the facial feature of a person and the plate number of a vehicle. There could be semantic relationships between data items which are not…

Databases · Computer Science 2022-10-11 Zihao Zhao , Zhihong Shen , Mingjie Tang , Chuan Hu , Huajin Wang , Yuanchun Zhou

The microservice bombshells that have been linked with the microservice expansion have altered the application architectures, offered agility and scalability in terms of complexity in security trade-offs. Feeble legacy-based perimeter-based…

Cryptography and Security · Computer Science 2025-11-10 Rethish Nair Rajendran , Sathish Krishna Anumula , Dileep Kumar Rai , Sachin Agrawal

The FoundationDB Record Layer is an open source library that provides a record-oriented data store with semantics similar to a relational database implemented on top of FoundationDB, an ordered, transactional key-value store. The Record…

Deep learning (DL) has made significant advancements in tomographic imaging, particularly in low-dose computed tomography (LDCT) denoising. A recent trend involves servers training powerful models with large amounts of self-collected…

Cryptography and Security · Computer Science 2023-10-16 Ziyuan Yang , Huijie Huangfu , Maosong Ran , Zhiwen Wang , Hui Yu , Yi Zhang