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Poorly designed smart contracts are particularly vulnerable, as they may allow attackers to exploit weaknesses and steal the virtual currency they manage. In this study, we train a model using unsupervised learning to identify…

密码学与安全 · 计算机科学 2025-04-15 Hong-Sheng Huang , Jen-Yi Ho , Hao-Wen Chen , Hung-Min Sun

Ethereum smart contracts are programs that run on the Ethereum blockchain, and many smart contract vulnerabilities have been discovered in the past decade. Many security analysis tools have been created to detect such vulnerabilities, but…

密码学与安全 · 计算机科学 2021-01-11 Nami Ashizawa , Naoto Yanai , Jason Paul Cruz , Shingo Okamura

In the growing field of blockchain technology, smart contracts exist as transformative digital agreements that execute transactions autonomously in decentralised networks. However, these contracts face challenges in the form of security…

密码学与安全 · 计算机科学 2024-07-12 Christopher De Baets , Basem Suleiman , Armin Chitizadeh , Imran Razzak

Smart contract, one of the most successful applications of blockchain, is taking the world by storm, playing an essential role in the blockchain ecosystem. However, frequent smart contract security incidents not only result in tremendous…

密码学与安全 · 计算机科学 2022-09-14 Peng Qian , Zhenguang Liu , Qinming He , Butian Huang , Duanzheng Tian , Xun Wang

With the frantic development of smart contracts on the Ethereum platform, its market value has also climbed. In 2016, people were shocked by the loss of nearly $50 million in cryptocurrencies from the DAO reentrancy attack. Due to the…

软件工程 · 计算机科学 2019-05-03 Xiaotao Feng , Qin Wang , Xiaogang Zhu , Sheng Wen

In Ethereum, the practice of verifying the validity of the passed addresses is a common practice, which is a crucial step to ensure the secure execution of smart contracts. Vulnerabilities in the process of address verification can lead to…

密码学与安全 · 计算机科学 2024-06-03 Tianle Sun , Ningyu He , Jiang Xiao , Yinliang Yue , Xiapu Luo , Haoyu Wang

Ethereum smart contracts are programs that are deployed and executed in a consensus-based blockchain managed by a peer-to-peer network. Several re-entrancy attacks that aim to steal Ether, the cryptocurrency used in Ethereum, stored in…

密码学与安全 · 计算机科学 2020-09-15 Yuichiro Chinen , Naoto Yanai , Jason Paul Cruz , Shingo Okamura

Ethereum Smart Contracts based on Blockchain Technology (BT) enables monetary transactions among peers on a blockchain network independent of a central authorizing agency. Ethereum Smart Contracts are programs that are deployed as…

密码学与安全 · 计算机科学 2022-03-03 Noama Fatima Samreen , Manar H. Alalfi

In recent years, we have seen a great deal of both academic and practical interest in the topic of vulnerabilities in smart contracts, particularly those developed for the Ethereum blockchain. While most of the work has focused on detecting…

密码学与安全 · 计算机科学 2020-10-20 Daniel Perez , Benjamin Livshits

An important problem in smart contract security is understanding the likelihood and criticality of discovered, or potential, weaknesses in contracts. In this paper we provide a summary of Ethereum smart contract audits performed for 23…

软件工程 · 计算机科学 2020-01-13 Alex Groce , Josselin Feist , Gustavo Grieco , Michael Colburn

Ethereum Smart Contracts based on Blockchain Technology (BT)enables monetary transactions among peers on a blockchain network independent of a central authorizing agency. Ethereum smart contracts are programs that are deployed as…

密码学与安全 · 计算机科学 2021-05-17 Noama Fatima Samreen , Manar H. Alalfi

Applications of blockchain technologies got a lot of attention in recent years. They exceed beyond exchanging value and being a substitute for fiat money and traditional banking system. Nevertheless, being able to exchange value on a…

密码学与安全 · 计算机科学 2019-08-22 Michal Ostapowicz , Kamil Żbikowski

Symbolic analysis of security exploits in smart contracts has demonstrated to be valuable for analyzing predefined vulnerability properties. While some symbolic tools perform complex analysis steps, they require a predetermined invocation…

密码学与安全 · 计算机科学 2019-06-10 Wesley Joon-Wie Tann , Xing Jie Han , Sourav Sen Gupta , Yew-Soon Ong

The large-scale deployment of Solidity smart contracts on the Ethereum mainnet has increasingly attracted financially-motivated attackers in recent years. A few now-infamous attacks in Ethereum's history includes DAO attack in 2016 (50…

密码学与安全 · 计算机科学 2024-10-29 Md Tauseef Alam , Raju Halder , Abyayananda Maiti

Ethereum smart contracts are highly powerful, immutable, and able to retain massive amounts of tokens. However, smart contracts keep attracting attackers to benefit from smart contract flaws and Ethereum unexpected behavior. Thus,…

密码学与安全 · 计算机科学 2024-04-10 Wejdene Haouari , Abdelhakim Senhaji Hafid , Marios Fokaefs

Front-running attacks have been a major concern on the blockchain. Attackers launch front-running attacks by inserting additional transactions before upcoming victim transactions to manipulate victim transaction executions and make profits.…

软件工程 · 计算机科学 2023-05-04 Wuqi Zhang , Lili Wei , Shing-Chi Cheung , Yepang Liu , Shuqing Li , Lu Liu , Michael R. Lyu

Ethereum smart contracts are executable programs deployed on a blockchain. Once deployed, they cannot be updated due to their inherent immutability. Moreover, they often manage valuable assets that are worth millions of dollars, making them…

密码学与安全 · 计算机科学 2024-09-13 Konrad Weiss , Christof Ferreira Torres , Florian Wendland

Smart Contracts (SCs) in Ethereum can automate tasks and provide different functionalities to a user. Such automation is enabled by the `Turing-complete' nature of the programming language (Solidity) in which SCs are written. This also…

密码学与安全 · 计算机科学 2021-06-28 Rachit Agarwal , Tanmay Thapliyal , Sandeep Kumar Shukla

Due to the risks associated with vulnerabilities in smart contracts, their security has gained significant attention in recent years. However, there is a lack of open datasets on smart contract vulnerabilities and their fixes that allows…

密码学与安全 · 计算机科学 2022-12-22 Majd Soud , Ilham Qasse , Grischa Liebel , Mohammad Hamdaqa

The explosive growth of Non-Fungible Tokens (NFTs) has revolutionized digital ownership by enabling the creation, exchange, and monetization of unique assets on blockchain networks. However, this surge in popularity has also given rise to a…

密码学与安全 · 计算机科学 2025-06-10 Chetan Pathade , Shweta Hooli