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Encrypted cloud storage services are steadily increasing in popularity, with many commercial solutions currently available. In such solutions, the cloud storage is trusted for data availability, but not for confidentiality. Additionally,…

Cryptography and Security · Computer Science 2020-10-28 Anders Dalskov , Daniele Lain , Enis Ulqinaku , Kari Kostiainen , Srdjan Capkun

The emergence of cloud computing provides a new computing paradigm for users -- massive and complex computing tasks can be outsourced to cloud servers. However, the privacy issues also follow. Fully homomorphic encryption shows great…

Cryptography and Security · Computer Science 2021-04-01 Lizhi Xiong , Wenhao Zhou , Zhihua Xia , Qi Gu , Jian Weng

We present CDStore, which disperses users' backup data across multiple clouds and provides a unified multi-cloud storage solution with reliability, security, and cost-efficiency guarantees. CDStore builds on an augmented secret sharing…

Cryptography and Security · Computer Science 2015-06-01 Mingqiang Li , Chuan Qin , Patrick P. C. Lee

The proliferation of peer-to-peer (P2P) file sharing protocols is due to their efficient and scalable methods for data dissemination to numerous users. But many of these networks have no provisions to provide users with long term access to…

Networking and Internet Architecture · Computer Science 2024-08-26 Andrew Pavlo , Ning Shi

Cloud storage services like Dropbox and Google Drive are widely used by individuals and businesses. Two attractive features of these services are 1) the automatic synchronization of files between multiple client devices and 2) the…

Radio astronomy observatories with high throughput back end instruments require real-time data processing. While computing hardware continues to advance rapidly, development of real-time processing pipelines remains difficult and…

As tremendous amount of data being generated everyday from human activity and from devices equipped with sensing capabilities, cloud computing emerges as a scalable and cost-effective platform to store and manage the data. While benefits of…

Databases · Computer Science 2013-05-29 Tien Tuan Anh Dinh , Anwitaman Datta

Diffusion Models (DMs) achieve state-of-the-art synthesis results in image generation and have been applied to various fields. However, DMs sometimes seriously violate user privacy during usage, making the protection of privacy an urgent…

Cryptography and Security · Computer Science 2024-09-10 Xin Zhao , Xiaojun Chen , Xudong Chen , He Li , Tingyu Fan , Zhendong Zhao

With the surge in cloud storage adoption, enterprises face challenges managing data duplication and exponential data growth. Deduplication mitigates redundancy, yet maintaining redundancy ensures high availability, incurring storage costs.…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-12-10 Sabbir Ahmed , Md Nahiduzzaman , Tariqul Islam , Faisal Haque Bappy , Tarannum Shaila Zaman , Raiful Hasan

We propose CFS, a distributed file system for large scale container platforms. CFS supports both sequential and random file accesses with optimized storage for both large files and small files, and adopts different replication protocols for…

Distributed, Parallel, and Cluster Computing · Computer Science 2019-11-11 Haifeng Liu , Wei Ding , Yuan Chen , Weilong Guo , Shuoran Liu , Tianpeng Li , Mofei Zhang , Jianxing Zhao , Hongyin Zhu , Zhengyi Zhu

Differential privacy (DP) is considered as the gold standard for data privacy. While the problem of answering simple queries and functions under DP guarantees has been thoroughly addressed in recent years, the problem of releasing…

Databases · Computer Science 2025-02-17 Ala Eddine Laouir , Abdessamad Imine

Data deduplication saves storage space by identifying and removing repeats in the data stream. Compared with traditional compression methods, data deduplication schemes are more time efficient and are thus widely used in large scale storage…

Information Theory · Computer Science 2022-05-30 Hao Lou , Farzad Farnoud

This paper presents Droplet, a decentralized data access control service. Droplet enables data owners to securely and selectively share their encrypted data while guaranteeing data confidentiality in the presence of unauthorized parties and…

Cryptography and Security · Computer Science 2021-01-22 Hossein Shafagh , Lukas Burkhalter , Anwar Hithnawi , Sylvia Ratnasamy

Data deduplication, one of the key features of modern Big Data storage devices, is the process of removing replicas of data chunks stored by different users. Despite the importance of deduplication, several drawbacks of the method, such as…

Information Theory · Computer Science 2024-11-05 Yun-Han Li , Jin Sima , Ilan Shomorony , Olgica Milenkovic

Shared folders are still a common practice for granting third parties access to data files, regardless of the advances in data sharing technologies. Services like Google Drive, Dropbox, Box, and others, provide infrastructures and…

Cryptography and Security · Computer Science 2021-09-01 Stefano Braghin , Marco Simioni , Mathieu Sinn

A secret sharing scheme is a method to store information securely and reliably. Particularly, in a threshold secret sharing scheme, a secret is encoded into $n$ shares, such that any set of at least $t_1$ shares suffice to decode the…

Information Theory · Computer Science 2016-04-04 Wentao Huang , Michael Langberg , Joerg Kliewer , Jehoshua Bruck

Peer-to-Peer (P2P) systems have proved to be the most effective and popular file sharing applications in recent years. Previous studies mainly focus on the equal service and the differentiated service strategies when peers have no initial…

Networking and Internet Architecture · Computer Science 2013-04-12 Jianwei Zhang , Yongchao Wang , Wei Xing , Dongming Lu

Cloud computing helps reduce costs, increase business agility and deploy solutions with a high return on investment for many types of applications. However, data security is of premium importance to many users and often restrains their…

Databases · Computer Science 2018-01-01 Varunya Attasena , Jérôme Darmont , Nouria Harbi

With the exponentially scaled World Wide Web, the standard HTTP protocol has started showing its limitations. With the increased amount of data duplication & accidental deletion of files on the Internet, the P2P file system called IPFS…

Networking and Internet Architecture · Computer Science 2023-09-12 Chaitanya Rahalkar , Dhaval Gujar

We propose the Consensus-Based Privacy-Preserving Data Distribution (CPPDD) framework, a lightweight and post-setup autonomous protocol for secure multi-client data aggregation. The framework enforces unanimous-release confidentiality…

Cryptography and Security · Computer Science 2026-05-21 Prajwal Panth , Sahaj Raj Malla