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Permissionless blockchains allow the execution of arbitrary programs (called smart contracts), enabling mutually untrusted entities to interact without relying on trusted third parties. Despite their potential, repeated security concerns…

密码学与安全 · 计算机科学 2018-08-27 Petar Tsankov , Andrei Dan , Dana Drachsler Cohen , Arthur Gervais , Florian Buenzli , Martin Vechev

Blockchains and distributed ledger technology offer promising capabilities for supporting collaborative business processes across organizations. Typically, approaches in this field fall into two categories: either executing the entire…

软件工程 · 计算机科学 2023-12-13 Julius Köpke , Sebastian Trattnig

Security bugs and trapdoors in smart contracts have been impacting the Ethereum community since its inception. Conceptually, the 1.45-million Ethereum's contracts form a single "gigantic program" whose behaviors are determined by the…

密码学与安全 · 计算机科学 2025-08-08 Thomas Ball , Nikolaj S. Bjørner , Ashley J. Chen , Shuo Chen , Yang Chen , Zhongxin Guo , Tzu-Han Hsu , Peng Liu , Nanqing Luo

The communication protocols and data transfer mechanisms employed by IoT devices in smart buildings and corresponding digital twin systems predominantly rely on centralized architectures. Such centralized systems are vulnerable to single…

密码学与安全 · 计算机科学 2026-04-21 Reachsak Ly , Alireza Shojaei

The main problem faced by smart contract platforms is the amount of time and computational power required to reach consensus. In a classical blockchain model, each operation is in fact performed by each node, both to update the status and…

密码学与安全 · 计算机科学 2021-11-11 Alessio Meneghetti , Tommaso Parise , Massimiliano Sala , Daniele Taufer

Decentralized techniques are becoming crucial and ubiquitous with the rapid advancement of distributed ledger technologies such as the blockchain. Numerous decentralized systems have been developed to address security and privacy issues…

分布式、并行与集群计算 · 计算机科学 2020-08-20 Yepeng Ding , Hiroyuki Sato

Internet of Things (IoT) occupies a vital aspect of our everyday lives. IoT networks composed of smart-devices which communicate and transfer the information without the physical intervention of humans. Due to such proliferation and…

密码学与安全 · 计算机科学 2020-01-08 Jawad Ali , Ahmad Shahrafidz Khalid , Eiad Yafi , Shahrulniza Musa , Waqas Ahmed

Smart contracts are software programs featuring both traditional applications and distributed data storage on blockchains. Ethereum is a prominent blockchain platform with the support of smart contracts. The smart contracts act as…

密码学与安全 · 计算机科学 2020-09-18 Purathani Praitheeshan , Lei Pan , Jiangshan Yu , Joseph Liu , Robin Doss

In most electricity theft detection schemes, consumers' power consumption data is directly input into the detection center. Although it is valid in detecting the theft of consumers, the privacy of all consumers is at risk unless the…

密码学与安全 · 计算机科学 2023-02-28 Zhiqiang Zhao , Yining Liu , Zhixin Zeng , Zhixiong Chen , Huiyu Zhou

The aim of this work is to study the use of decentralization and smart contracts on blockchain networks. We investigate the implementation and use of smart contracts on the platforms Bitcoin, Ethereum and Hyperledger Fabric. Additionally,…

密码学与安全 · 计算机科学 2019-03-13 Theodosis Mourouzis , Jayant Tandon

Cloud computing enables users to process and store data remotely on high-performance computers and servers by sharing data over the Internet. However, transferring data to clouds causes unavoidable privacy concerns. Here, we present a…

密码学与安全 · 计算机科学 2024-08-12 Haleh Hayati , Nathan van de Wouw , Carlos Murguia

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

Inspired by Bitcoin, many different kinds of cryptocurrencies based on blockchain technology have turned up on the market. Due to the special structure of the blockchain, it has been deemed impossible to directly trade between traditional…

密码学与安全 · 计算机科学 2020-05-08 Hangyu Tian , Kaiping Xue , Shaohua Li , Jie Xu , Jianqing Liu , Jun Zhao

Smart contracts are blockchain-based algorithms that execute when specific criteria are satisfied. They are often used to automate the implementation of an agreement so that all parties may be confident of the conclusion right away, without…

密码学与安全 · 计算机科学 2022-12-19 Harry Virani , Manthan Kyada

Blockchain has the potential to revolutionize the way we store, use, and process data. Information on most blockchains can be viewed by every node hosting the blockchain, which means that most blockchains cannot handle private data.…

密码学与安全 · 计算机科学 2018-10-30 Sabine Bertram , Co-Pierre Georg

In the given technology-driven era, smart cities are the next frontier of technology, aiming at improving the quality of people's lives. Many research works focus on future smart cities with a holistic approach towards smart city…

密码学与安全 · 计算机科学 2021-07-22 S. Valli Sanghami , John J. Lee , Qin Hu

While the smart surveillance system enhanced by the Internet of Things (IoT) technology becomes an essential part of Smart Cities, it also brings new concerns in security of the data. Compared to the traditional surveillance systems that is…

分布式、并行与集群计算 · 计算机科学 2018-07-20 Deeraj Nagothu , Ronghua Xu , Seyed Yahya Nikouei , Yu Chen

Smart manufacturing systems involve a large number of interconnected devices resulting in massive data generation. Cloud computing technology has recently gained increasing attention in smart manufacturing systems for facilitating…

密码学与安全 · 计算机科学 2023-04-27 Aditya Pribadi Kalapaaking , Ibrahim Khalil , Mohammad Saidur Rahman , Abdelaziz Bouras

In the current paradigm of digital personalized services, the centralized management of personal data raises significant privacy concerns, security vulnerabilities, and diminished individual autonomy over sensitive information. Despite…

密码学与安全 · 计算机科学 2025-09-12 Osama Zafar , Mina Namazi , Yuqiao Xu , Youngjin Yoo , Erman Ayday

Technological advancements have significantly transformed communication patterns, introducing a diverse array of online platforms, thereby prompting individuals to use multiple profiles for different domains and objectives. Enhancing the…

密码学与安全 · 计算机科学 2024-07-08 Shahar Somin , Keeley Erhardt , Alex 'Sandy' Pentland