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In our proposed work we mainly focus on data security of tenants so that only the authorized user can access the data. To provide this feature we use encryption and decryption process of data so that the only legal tenant can access their…

密码学与安全 · 计算机科学 2014-06-19 Parul Kashyap , Rahul Singh

Nowadays, Linux file systems have to manage millions of tiny files for different applications, and face with higher metadata operations. So how to provide such high metadata performance with such enormous number of files and large scale…

系统与控制 · 计算机科学 2014-09-30 Tanmay Agrawal , Ashay Shirwadkar , Pratik Gaikar , Kushagra Verma

Decentralized data storage systems like the Interplanetary Filesystem (IPFS) are becoming increasingly popular, e. g., as a data layer in blockchain applications and for sharing content in a censorship-resistant manner. In IPFS, data is…

网络与互联网体系结构 · 计算机科学 2022-05-24 Leonhard Balduf , Sebastian Henningsen , Martin Florian , Sebastian Rust , Björn Scheuermann

This paper presents an architecture, based on Distributed Ledger Technologies (DLTs) and Decentralized File Storage (DFS) systems, to support the use of Personal Information Management Systems (PIMS). DLT and DFS are used to manage data…

密码学与安全 · 计算机科学 2020-07-08 Mirko Zichichi , Stefano Ferretti , Gabriele D'Angelo

NeXus is a joint effort of both the synchrotron and neutron scattering community to devlop a common data exchange format based on HDF. In order to simplify access to NeXus-files a NeXus-API is provided. This NeXus-API has been redesigned…

数据分析、统计与概率 · 物理学 2007-05-23 Mark Koennecke , Uwe Filges

Authcoin is an alternative approach to the commonly used public key infrastructures such as central authorities and the PGP web of trust. It combines a challenge response-based validation and authentication process for domains,…

密码学与安全 · 计算机科学 2016-09-19 Benjamin Leiding , Clemens H. Cap , Thomas Mundt , Samaneh Rashidibajgan

The Userfault Object (UFO) framework explores avenues of cooperating with the operating system to use memory in non-traditional ways. We implement a framework that employs the Linux kernel's userfault mechanism to fill the contents of…

编程语言 · 计算机科学 2021-09-16 Konrad Siek , Colette Kerr

The widespread deployment of control-flow integrity has propelled non-control data attacks into the mainstream. In the domain of OS kernel exploits, by corrupting critical non-control data, local attackers can directly gain root access or…

密码学与安全 · 计算机科学 2024-09-10 Jinmeng Zhou , Jiayi Hu , Ziyue Pan , Jiaxun Zhu , Wenbo Shen , Guoren Li , Zhiyun Qian

Federated learning (FL) enables multiple clients to jointly train a global model under the coordination of a central server. Although FL is a privacy-aware paradigm, where raw data sharing is not required, recent studies have shown that FL…

The Unified Extensible Firmware Interface (UEFI) is a standardised interface between the firmware and the operating system used in all x86-based platforms over the past ten years. A side effect of the transition from conventional BIOS…

软件工程 · 计算机科学 2021-11-22 Mikhail Krichanov , Vitaly Cheptsov

Despite the de-facto technological uniformity fostered by the cloud and edge computing paradigms, resource fragmentation across isolated clusters hinders the dynamism in application placement, leading to suboptimal performance and…

分布式、并行与集群计算 · 计算机科学 2022-12-26 Marco Iorio , Fulvio Risso , Alex Palesandro , Leonardo Camiciotti , Antonio Manzalini

We introduce NebulOS, a Big Data platform that allows a cluster of Linux machines to be treated as a single computer. With NebulOS, the process of writing a massively parallel program for a datacenter is no more complicated than writing a…

天体物理仪器与方法 · 物理学 2016-09-15 Nathaniel R. Stickley , Miguel A. Aragon-Calvo

Self-hosted cloud storage platforms like Nextcloud are gaining popularity among individuals and organizations seeking greater control over their data. However, this shift introduces new challenges for digital forensic investigations,…

密码学与安全 · 计算机科学 2025-10-31 Michael Külper , Jan-Niclas Hilgert , Frank Breitinger , Martin Lambertz

E-governance is a process that aims to enhance a government's ability to simplify all the processes that may involve government, citizens, businesses, and so on. The rapid evolution of digital technologies has often created the necessity…

密码学与安全 · 计算机科学 2022-03-17 Owen Lo , William J. Buchanan , Sarwar Sayeed , Pavlos Papadopoulos , Nikolaos Pitropakis , Christos Chrysoulas

Modern operating systems manage and abstract hardware resources, to ensure efficient execution of user workloads. The operating system must securely interface with often untrusted user code while relying on hardware that is assumed to be…

密码学与安全 · 计算机科学 2024-11-04 Rick Wertenbroek , Alberto Dassatti

We notice a way to execute a binary file on Windows and ELF-based systems. It can be used to create software installers and other applications not exceeding 64 kilo bytes.

操作系统 · 计算机科学 2015-04-14 Steffen Grønneberg

Most existing solutions for protecting VMs assume known attack patterns or signatures and focus on detecting malicious manipulations of system files and kernel level memory structures. In this research we develop a system called ferify,…

密码学与安全 · 计算机科学 2020-04-21 Alexis Peppas , Geoffrey G. Xie , Charles Prince

In scientific computing, more computational power generally implies faster and possibly more detailed results. The goal of this study was to develop a framework to submit computational jobs to powerful workstations underused by nonintensive…

分布式、并行与集群计算 · 计算机科学 2016-09-23 Áttila L. Rodrigues , João Felipe C. L. Costa

Disaggregating resources in data centers is an emerging trend. Recent work has begun to explore memory disaggregation, but suffers limitations including lack of consideration of the complexity of cloud-based deployment, including…

操作系统 · 计算机科学 2017-07-26 Blake Caldwell , Youngbin Im , Sangtae Ha , Richard Han , Eric Keller

We present CleanQ, a high-performance operating-system interface for descriptor-based data transfer with rigorous formal semantics, based on a simple, formally-verified notion of ownership transfer, with a fast reference implementation.…

操作系统 · 计算机科学 2019-11-21 Roni Haecki , Lukas Humbel , Reto Achermann , David Cock , Daniel Schwyn , Timothy Roscoe