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Smart contracts are central to a myriad of critical blockchain applications, from financial transactions to supply chain management. However, their adoption is hindered by security vulnerabilities that can result in significant financial…

Cryptography and Security · Computer Science 2025-09-30 Dalila Ressi , Alvise Spanò , Lorenzo Benetollo , Carla Piazza , Michele Bugliesi , Sabina Rossi

Decentralized cryptocurrencies feature the use of blockchain to transfer values among peers on networks without central agency. Smart contracts are programs running on top of the blockchain consensus protocol to enable people make…

Software Engineering · Computer Science 2018-08-06 Bo Jiang , Ye Liu , W. K. Chan

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…

Software Engineering · Computer Science 2020-01-13 Alex Groce , Josselin Feist , Gustavo Grieco , Michael Colburn

Smart contracts are computer programs that can be consistently executed by a network of mutually distrusting nodes, without the arbitration of a trusted authority. Because of their resilience to tampering, smart contracts are appealing in…

Cryptography and Security · Computer Science 2018-06-21 Massimo Bartoletti , Livio Pompianu

The emerging blockchain technology supports decentralized computing paradigm shift and is a rapidly approaching phenomenon. While blockchain is thought primarily as the basis of Bitcoin, its application has grown far beyond cryptocurrencies…

Cryptography and Security · Computer Science 2020-06-23 Reza M. Parizi , Ali Dehghantanha , Kim-Kwang Raymond Choo , Amritraj Singh

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…

Cryptography and Security · Computer Science 2025-04-15 Hong-Sheng Huang , Jen-Yi Ho , Hao-Wen Chen , Hung-Min Sun

While catastrophic attacks on Ethereum persist, vulnerability research remains fixated on implementation-level smart contract bugs, creating a gap between academic understanding of vulnerabilities and the root causes of high-impact,…

Cryptography and Security · Computer Science 2025-09-11 Hadis Rezaei , Mojtaba Eshghie , Karl Anderesson , Francesco Palmieri

The use of blockchain and smart contracts have not stopped growing in recent years. Like all software that begins to expand its use, it is also beginning to be targeted by hackers who will try to exploit vulnerabilities in both the…

Cryptography and Security · Computer Science 2024-02-07 Antonio López Vivar , Ana Lucila Sandoval Orozco , Luis Javier García Villalba

This article conducts an extensive examination of the persisting challenges related to smart contract attacks within blockchain networks, with a particular focus on the reentrancy attack. It emphasizes the inherent vulnerabilities embedded…

Social and Information Networks · Computer Science 2023-10-05 Simone Casale-Brunet , Marco Mattavelli

Blockchain and Cryptocurrencies are gaining unprecedented popularity and understanding. Meanwhile, Ethereum is gaining a significant popularity in the blockchain community, mainly due to the fact that it is designed in a way that enables…

Cryptography and Security · Computer Science 2018-07-06 TonTon Hsien-De Huang

Smart contracts are the cornerstone of decentralized applications and financial protocols, which extend the application of digital currency transactions. The applications and financial protocols introduce significant security challenges,…

Cryptography and Security · Computer Science 2025-04-22 Hongli Peng , Xiaoqi Li , Wenkai Li

Ethereum smart contracts are programs that can be collectively executed by a network of mutually untrusted nodes. Smart contracts handle and transfer assets of values, offering strong incentives for malicious attacks. Intrusion attacks are…

Software Engineering · Computer Science 2019-11-28 Xinming Wang , Jiahao He , Zhijian Xie , Gansen Zhao , Shing-Chi Cheung

The wide application of Ethereum technology has brought technological innovation to traditional industries. As one of Ethereum's core applications, smart contracts utilize diverse contract codes to meet various functional needs and have…

Cryptography and Security · Computer Science 2024-07-02 Jiacheng Yao , Maolin Wang , Wanqi Chen , Chengxiang Jin , Jiajun Zhou , Shanqing Yu , Qi Xuan

Smart contracts are programs running on a blockchain. They are immutable to change, and hence can not be patched for bugs once deployed. Thus it is critical to ensure they are bug-free and well-designed before deployment. A Contract defect…

Software Engineering · Computer Science 2020-04-20 Jiachi Chen , Xin Xia , David Lo , John Grundy , Daniel Xiapu Luo , Ting Chen

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…

Cryptography and Security · Computer Science 2022-12-19 Harry Virani , Manthan Kyada

Smart contracts on a blockchain behave precisely as specified by their code. A vulnerability in this code can lead to unexpected behaviour, which is hard to fix because a blockchain does not allow to change smart contract code after its…

Programming Languages · Computer Science 2019-11-27 Markus Knecht

As a blockchain platform that has developed vigorously in recent years, Ethereum is different from Bitcoin in that it introduces smart contracts into blockchain.Solidity is one of the most mature and widely used smart contract programming…

Software Engineering · Computer Science 2019-11-25 Pengcheng Zhang , Feng Xiao , Xiapu Luo

Ethereum has become a widely used platform to enable secure, Blockchain-based financial and business transactions. However, many identified bugs and vulnerabilities in smart contracts have led to serious financial losses, which raises…

Software Engineering · Computer Science 2021-07-06 Zhipeng Gao

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…

Cryptography and Security · Computer Science 2020-10-20 Daniel Perez , Benjamin Livshits

Context: Smart contract vulnerabilities pose significant security risks for the Ethereum ecosystem, driving the development of automated tools for detection and mitigation. Smart contracts are written in Solidity, a programming language…

Software Engineering · Computer Science 2025-04-09 Gerardo Iuliano , Davide Corradini , Michele Pasqua , Mariano Ceccato , Dario Di Nucci