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Blockchain is a type of decentralized distributed database. Unlike traditional relational database management systems, it does not require management or maintenance by a third party. All data management and update processes are open and…

密码学与安全 · 计算机科学 2025-05-14 Jiaqi Huang , Yuanzheng Niu , Xiaoqi Li , Zongwei Li

As a disruptive technology, blockchain, particularly its original form of bitcoin as a type of digital currency, has attracted great attentions. The innovative distributed decision making and security mechanism lay the technical foundation…

密码学与安全 · 计算机科学 2018-12-21 Ameer Tamoor Khan , Xinwei Cao , Shuai Li

Blockchain offers a decentralized, immutable, transparent system of records. It offers a peer-to-peer network of nodes with no centralised governing entity making it unhackable and therefore, more secure than the traditional paper-based or…

密码学与安全 · 计算机科学 2019-11-27 Harsh Jot Singh , Abdelhakim Senhaji Hafid

Decentralized autonomous organizations as a new form of online governance arecollections of smart contracts deployed on a blockchain platform that intercede groupsof people. A growing number of Decentralized Autonomous Organization…

计算机与社会 · 计算机科学 2021-07-30 Elena Baninemeh , Siamak Farshidi , Slinger Jansen

Privacy preservation is a big concern for various sectors. To protect individual user data, one emerging technology is differential privacy. However, it still has limitations for datasets with frequent queries, such as the fast accumulation…

密码学与安全 · 计算机科学 2020-06-09 Leong Mei Han , Yang Zhao , Jun Zhao

Blockchain and general purpose distributed ledgers are foundational technologies which bring significant innovation in the infrastructures and other underpinnings of our socio-economic systems. These P2P technologies are able to securely…

分布式、并行与集群计算 · 计算机科学 2021-06-17 Claudio J. Tessone , Paolo Tasca , Flavio Iannelli

The targeted advertising is based on preference profiles inferred via relationships among individuals, their monitored responses to previous advertising and temporal activity over the Internet, which has raised critical privacy concerns. In…

密码学与安全 · 计算机科学 2020-08-25 Imdad Ullah , Salil S. Kanhere , Roksana Boreli

Private blockchain networks are used by enterprises to manage decentralized processes without trusted mediators and without exposing their assets publicly on an open network like Ethereum. Yet external parties that cannot join such networks…

密码学与安全 · 计算机科学 2021-01-26 Dushyant Behl , Palanivel Kodeswaran , Venkatraman Ramakrishna , Sayandeep Sen , Dhinakaran Vinayagamurthy

Usually, a medical record (MR) contains the patients disease-oriented sensitive information. In addition, the MR needs to be shared among different bodies, e.g., diagnostic centres, hospitals, physicians, etc. Hence, retaining the privacy…

密码学与安全 · 计算机科学 2023-04-27 Md. Ahsan Habib , Kazi Md. Rokibul Alam , Yasuhiko Morimoto

Blockchain brings various advantages to online transactions. However, the total transparency of these transactions may leakage users' sensitive information. Requirements on both cooperation and anonymity for companies/organizations become…

密码学与安全 · 计算机科学 2021-07-20 Qin Wang , Shiping Chen , Yang Xiang

Electronic medical record (EMR) is a crucial form of healthcare data, currently drawing a lot of attention. Sharing health data is considered to be a critical approach to improve the quality of healthcare service and reduce medical costs.…

密码学与安全 · 计算机科学 2018-11-09 Jingwei Liu , Xiaolu Li , Lin Ye , Hongli Zhang , Xiaojiang Du , Mohsen Guizani

In recent years blockchain technology has received tremendous attention. Blockchain users are known by a changeable Public Key (PK) that introduces a level of anonymity, however, studies have shown that anonymized transactions can be linked…

密码学与安全 · 计算机科学 2022-02-22 Ali Dorri , Clemence Roulin , Shantanu Pal , Sarah Baalbaki , Raja Jurdak , Salil Kanhere

The popularity of smart cars is increasing around the world as they offer a wide range of services and conveniences.These smart cars are equipped with a variety of sensors generating a large amount of data, many of which are sensitive.…

密码学与安全 · 计算机科学 2018-10-22 Md Sadek Ferdous , Mohammad Jabed Morshed Chowdhury , Kamanashis Biswas , Niaz Chowdhury

Accurate real-time traffic flow prediction can be leveraged to relieve traffic congestion and associated negative impacts. The existing centralized deep learning methodologies have demonstrated high prediction accuracy, but suffer from…

分布式、并行与集群计算 · 计算机科学 2023-05-30 Collin Meese , Hang Chen , Syed Ali Asif , Wanxin Li , Chien-Chung Shen , Mark Nejad

The cost of conducting multi-site clinical trials has significantly increased over time, with site monitoring, data management, and amendments being key drivers. Clinical trial data management approaches typically rely on a central…

数据库 · 计算机科学 2019-02-12 Olivia Choudhury , Noor Fairoza , Issa Sylla , Amar Das

Blockchain has recently been depicted as a secure protocol for information exchange in cyber-physical microgrids. However, it is still found vulnerable to consensus manipulation attacks. These stealth attacks are often difficult to detect…

密码学与安全 · 计算机科学 2023-03-09 Suman Rath , Lam Duc Nguyen , Subham Sahoo , Petar Popovski

Blockchains revolutionized centralized sectors like banking and finance by promoting decentralization and transparency. In a blockchain, information is transmitted through transactions issued by participants or applications. Miners…

密码学与安全 · 计算机科学 2024-05-30 Johnnatan Messias Peixoto Afonso

A blockchain is a distributed ledger forming a distributed consensus on a history of transactions. It is the underlying technology for the Bitcoin cryptocurrency, but there are many applications beyond the financial sector. With built-in…

密码学与安全 · 计算机科学 2019-12-23 Nathaniel Aldred , Luke Baal , Graeham Broda , Steven Trumble , Qusay H. Mahmoud

Federated learning has been widely studied and applied to various scenarios. In mobile computing scenarios, federated learning protects users from exposing their private data, while cooperatively training the global model for a variety of…

分布式、并行与集群计算 · 计算机科学 2020-12-08 Yuzheng Li , Chuan Chen , Nan Liu , Huawei Huang , Zibin Zheng , Qiang Yan

Various data-sharing platforms have emerged with the growing public demand for open data and legislation mandating certain data to remain open. Most of these platforms remain opaque, leading to many questions about data accuracy, provenance…

密码学与安全 · 计算机科学 2025-02-25 Linh T. Nguyen , Lam Duc Nguyen , Thong Hoang , Dilum Bandara , Qin Wang , Qinghua Lu , Xiwei Xu , Liming Zhu , Petar Popovski , Shiping Chen