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The concept of a decentralized ledger usually implies that each node of a blockchain network stores the entire blockchain. However, in the case of popular blockchains, which each weigh several hundreds of GB, the large amount of data to be…

密码学与安全 · 计算机科学 2018-05-03 Doriane Perard , Jérôme Lacan , Yann Bachy , Jonathan Detchart

Decentralized Online Social Networks (DOSNs) have been proposed as an alternative solution to the current centralized Online Social Networks (OSNs). Online Social Networks are based on centralized architecture (e.g., Facebook, Twitter, or…

密码学与安全 · 计算机科学 2019-10-29 Mohsin Ur Rahman , Fabrizio Baiardi , Barbara Guidi , Laura Ricci

The paths leading to future networks are pointing towards a data-driven paradigm to better cater to the explosive growth of mobile services as well as the increasing heterogeneity of mobile devices, many of which generate and consume large…

网络与互联网体系结构 · 计算机科学 2021-02-01 Xi Li , Zehua Wang , Victor C. M. Leung , Hong Ji , Yiming Liu , Heli Zhang

Off-grid networks are recently emerging as a solution to connect the unconnected or provide alternative services to networks of possibly untrusted participants. The systems currently used, however, exhibit limitations due to their…

分布式、并行与集群计算 · 计算机科学 2020-07-09 Harris Niavis , Nikolaos Papadis , Leandros Tassiulas

Traditional paper-based document management has long posed challenges related to security, authenticity, and efficiency. Despite advances in digitalization, official documents remain vulnerable to forgery, loss, and unauthorized access.…

密码学与安全 · 计算机科学 2026-01-21 Cosmin-Iulian Irimia

Decentralization has been touted as the principal security advantage which propelled blockchain systems at the forefront of developments in the financial technology space. Its exact semantics nevertheless remain highly contested and…

密码学与安全 · 计算机科学 2024-04-16 Christina Ovezik , Dimitris Karakostas , Aggelos Kiayias

Blockchain has been widely deployed in various sectors, such as finance, education, and public services. Since blockchain runs as an immutable distributed ledger, it has decentralized mechanisms with persistency, anonymity, and…

密码学与安全 · 计算机科学 2021-11-30 Qian Wei , Bingzhe Li , Wanli Chang , Zhiping Jia , Zhaoyan Shen , Zili Shao

Under the emerging network coding paradigm, intermediate nodes in the network are allowed not only to store and forward packets but also to process and mix different data flows. We propose a low-complexity cryptographic scheme that exploits…

密码学与安全 · 计算机科学 2016-11-17 Joao P. Vilela , Luisa Lima , Joao Barros

For the modern world where data is becoming one of the most valuable assets, robust data privacy policies rooted in the fundamental infrastructure of networks and applications are becoming an even bigger necessity to secure sensitive user…

密码学与安全 · 计算机科学 2019-12-11 Anudit Nagar

We consider large-scale wireless sensor networks with $n$ nodes, out of which k are in possession, (e.g., have sensed or collected in some other way) k information packets. In the scenarios in which network nodes are vulnerable because of,…

信息论 · 计算机科学 2009-10-27 Zhenning Kong , Salah A. Aly , Emina Soljanin

The current internet architecture is inefficient in fulfilling the demands of newly emerging internet applications. To address this issue, several over-the-top (OTT) application-level solutions have been employed, making the overall…

网络与互联网体系结构 · 计算机科学 2019-08-07 Muhammad Bilal

Blockchain technology, while revolutionary in enabling decentralized transactions, faces scalability challenges as the ledger must be replicated across all nodes of the chain, limiting throughput and efficiency. Sharding, which divides the…

分布式、并行与集群计算 · 计算机科学 2024-05-09 Björn Assmann , Samuel J. Burri

Network-on-Chip (NoC) enables on-chip communication between diverse cores in modern System-on-Chip (SoC) designs. With its shared communication fabric, NoC has become a focal point for various security threats, especially in heterogeneous…

密码学与安全 · 计算机科学 2025-05-22 Hansika Weerasena , Xiaoguo Jia , Prabhat Mishra

As digital content distribution expands rapidly through online platforms, securing digital media and protecting intellectual property has become increasingly complex. Traditional centralized systems, while widely adopted, suffer from…

密码学与安全 · 计算机科学 2025-04-25 Syed Mohiuddin Qadri , Sangwhan Cha

Content delivery networks store information distributed across multiple servers, so as to balance the load and avoid unrecoverable losses in case of node or disk failures. Coded caching has been shown to be a useful technique which can…

信息论 · 计算机科学 2016-11-22 Tianqiong Luo , Vaneet Aggarwal , Borja Peleato

Motivated by the recent surge of criminal activities with cross-cryptocurrency trades, we introduce a new topological perspective to structural anomaly detection in dynamic multilayer networks. We postulate that anomalies in the underlying…

密码学与安全 · 计算机科学 2021-07-08 Dorcas Ofori-Boateng , Ignacio Segovia Dominguez , Murat Kantarcioglu , Cuneyt G. Akcora , Yulia R. Gel

Security and privacy in Direct Load Control (DLC) is a fundamental challenge in smart grids. In this paper, we propose a blockchain-based framework to increase security and privacy of DLC. We propose a method whereby participating nodes…

密码学与安全 · 计算机科学 2018-12-21 Ali Dorri , Fengji Luo , Salil S Kanhere , Raja Jurdak , Zhao Yang Dong

Machine learning models offer the capability to forecast future energy production or consumption and infer essential unknown variables from existing data. However, legal and policy constraints within specific energy sectors render the data…

机器学习 · 计算机科学 2024-06-10 Lei Xu , Yulong Chen , Yuntian Chen , Longfeng Nie , Xuetao Wei , Liang Xue , Dongxiao Zhang

Distributed storage systems introduce redundancy to protect data from node failures. After a storage node fails, the lost data should be regenerated at a replacement storage node as soon as possible to maintain the same level of redundancy.…

分布式、并行与集群计算 · 计算机科学 2015-06-19 Qingyuan Gong , Jiaqi Wang , Yan Wang , Dongsheng Wei , Jin Wang , Xin Wang

As blockchain technology gains traction for enhancing data security and operational efficiency, traditional centralized authentication systems remain a significant bottleneck. This paper addresses the challenge of integrating decentralized…

密码学与安全 · 计算机科学 2024-12-03 Faisal Haque Bappy , Joon S. Park , Kamrul Hasan , Tariqul Islam