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Advancement in artificial intelligence (AI) and machine learning (ML), dynamic data driven application systems (DDDAS), and hierarchical cloud-fog-edge computing paradigm provide opportunities for enhancing multi-domain systems performance.…

Cryptography and Security · Computer Science 2020-04-23 Ronghua Xu , Yu Chen , Erik Blasch , Alexander Aved , Genshe Chen , Dan Shen

Blockchain based systems allow various kinds of financial transactions to be executed in a decentralized manner. However, these systems often rely on a trusted third party (oracle) to get correct information about the real-world events,…

Artificial Intelligence · Computer Science 2020-07-28 Naman Goel , Cyril van Schreven , Aris Filos-Ratsikas , Boi Faltings

There has been an intense concern for security alternatives because of the recent rise of cyber attacks, mainly targeting critical systems such as industry, medical, or energy ecosystem. Though the latest industry infrastructures largely…

Cryptography and Security · Computer Science 2021-06-28 Ziaur Rahman , Ibrahim Khalil , Xun Yi , Mohammed Atiquzzaman

Blockchain technology is booming up the digital world in recent days and thus paved a way for creating separate blockchain network for various industries. This technology is characterized by its distributed, decentralized, and immutable…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-10-31 Ankit Ravish , Akshay Tejwani , Piduguralla Manaswini , Sathya Peri

A blockchain is a decentralised linked data structure that is characterised by its inherent resistance to data modification, but it is deficient in search queries, primarily due to its inferior data formatting. A distributed database is…

Databases · Computer Science 2019-01-11 Muhammad Muzammal , Qiang Qu , Bulat Nasrulin , Anders Skovsgaard

Web 3.0 enables user-generated contents and user-selected authorities. With decentralized wireless edge computing architectures, Web 3.0 allows users to read, write, and own contents. A core technology that enables Web 3.0 goals is…

Cryptography and Security · Computer Science 2022-10-28 Yijing Lin , Zhipeng Gao , Hongyang Du , Dusit Niyato , Jiawen Kang , Ruilong Deng , Xuemin Sherman Shen

Modern cryptocurrencies exploit decentralised blockchains to record a public and unalterable history of transactions. Besides transactions, further information is stored for different, and often undisclosed, purposes, making the blockchains…

Cryptography and Security · Computer Science 2017-11-07 Massimo Bartoletti , Andrea Bracciali , Stefano Lande , Livio Pompianu

Trust Management (TM) systems for authentication are vital to the security of online interactions, which are ubiquitous in our everyday lives. Various systems, like the Web PKI (X.509) and PGP's Web of Trust are used to manage trust in this…

Cryptography and Security · Computer Science 2017-11-15 Nikolaos Alexopoulos , Jörg Daubert , Max Mühlhäuser , Sheikh Mahbub Habib

Blockchain has emerged as a decentralized and distributed framework that enables tamper-resilience and, thus, practical immutability for stored data. This immutability property is important in scenarios where auditability is desired, such…

Databases · Computer Science 2020-03-09 Mustafa Safa Ozdayi , Murat Kantarcioglu , Bradley Malin

Blockchains are among the most powerful technologies to realize decentralized information systems. In order to safely enjoy all guarantees provided by a blockchain, one should maintain a full node, therefore maintaining an updated local…

Cryptography and Security · Computer Science 2025-03-12 Stefano De Angelis , Ivan Visconti , Andrea Vitaletti , Marco Zecchini

Spectrum access system (SAS) is widely considered the de facto solution to coordinating dynamic spectrum sharing (DSS) and protecting incumbent users. The current SAS paradigm prescribed by the FCC for the CBRS band and standardized by the…

Distributed, Parallel, and Cluster Computing · Computer Science 2022-01-14 Yang Xiao , Shanghao Shi , Wenjing Lou , Chonggang Wang , Xu Li , Ning Zhang , Y. Thomas Hou , Jeffrey H. Reed

Blockchain technology is widely used in various fields due to its ability to provide decentralization and trustless security. This is a fundamental understanding held by many advocates, but it is misunderstood, leading participants to fail…

Cryptography and Security · Computer Science 2026-02-02 Chunyi Zhang , Fengjiao Dou , Xiaoqi Li

Recently, blockchain has gained momentum in the academic community thanks to its decentralization, immutability, transparency and security. As an emerging paradigm, Multi-access Edge Computing (MEC) has been widely used to provide…

Networking and Internet Architecture · Computer Science 2020-01-23 Dinh C Nguyen , Pubudu N Pathirana , Ming Ding , Aruna Seneviratne

Recently, blockchain has gained momentum as a novel technology that gives rise to a plethora of new decentralized applications (e.g., Internet of Things (IoT)). However, its integration with the IoT is still facing several problems (e.g.,…

Cryptography and Security · Computer Science 2022-01-28 Hajar Moudoud , Soumaya Cherkaoui , Lyes Khoukhi

The research designs a new integrated system for the security enhancement of a decentralized network by preventing damages from attackers, particularly for the 51 percent attack. The concept of multiple layered design based on Blockchain…

Cryptography and Security · Computer Science 2022-02-15 Song-Kyoo Kim

Trustless tracking of Resident Space Objects (RSOs) is crucial for Space Situational Awareness (SSA), especially during adverse situations. The importance of transparent SSA cannot be overstated, as it is vital for ensuring space safety and…

Cryptography and Security · Computer Science 2024-09-04 Yasir Latif , Anirban Chowdhury , Samya Bagchi

In recent years, the healthcare sector's transition to digital platforms has intensified concerns over data security, privacy, and scalability. Blockchain technology offers a decentralized, secure, and immutable solution to these…

Cryptography and Security · Computer Science 2024-12-11 Reza Javan , Mehrzad Mohammadi , Mohammad Beheshti-Atashgah , Mohammad Reza Aref

This paper proposes a blockchain-secured deep reinforcement learning (BC-DRL) optimization framework for {data management and} resource allocation in decentralized {wireless mobile edge computing (MEC)} networks. In our framework, {we…

Machine Learning · Computer Science 2024-04-16 Xin Hao , Phee Lep Yeoh , Changyang She , Branka Vucetic , Yonghui Li

The limitation with smart contracts is that they cannot access external data which might be required to control the execution of business logic. Oracles can be used to provide external data to smart contracts. An oracle is an interface that…

Cryptography and Security · Computer Science 2020-07-16 Abdeljalil Beniiche

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…

Cryptography and Security · Computer Science 2025-05-14 Jiaqi Huang , Yuanzheng Niu , Xiaoqi Li , Zongwei Li