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Security issues are becoming increasingly significant with the rapid evolution of Non-fungible Tokens (NFTs). As NFTs are traded as digital assets, they have emerged as prime targets for cyber attackers. In the development of NFT smart…

Cryptography and Security · Computer Science 2026-01-16 Yuanzheng Niu , Xiaoqi Li , Wenkai Li

As the Ethereum platform continues to mature and gain widespread usage, it is crucial to maintain high standards of smart contract writing practices. While bad practices in smart contracts may not directly lead to security issues, they…

Cryptography and Security · Computer Science 2026-02-03 Xiaoqi Li , Zongwei Li , Wenkai Li , Yuqing Zhang , Xin Wang

Ethereum smart contracts hold tens of billions of USD in DeFi and NFTs, yet comprehensive security analysis remains difficult due to unverified code, proxy-based architectures, and the reliance on manual inspection of complex execution…

Cryptography and Security · Computer Science 2025-09-04 Shuzheng Wang , Yue Huang , Zhuoer Xu , Yuming Huang , Jing Tang

The high rate of false alarms from static analysis tools and Large Language Models (LLMs) complicates vulnerability detection in Solidity Smart Contracts, demanding methods that can formally or empirically prove the presence of defects.…

Software Engineering · Computer Science 2025-09-17 Ştefan-Claudiu Susan , Andrei Arusoaie , Dorel Lucanu

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…

Cryptography and Security · Computer Science 2024-10-29 Md Tauseef Alam , Raju Halder , Abyayananda Maiti

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

Hackers may create malicious solidity programs and deploy it in the Ethereum block chain. These malicious smart contracts try to attack legitimate programs by exploiting its vulnerabilities such as reentrancy, tx.origin attack, bad…

Cryptography and Security · Computer Science 2025-12-10 Roopak Surendran

With the increase in software vulnerabilities that cause significant economic and social losses, automatic vulnerability detection has become essential in software development and maintenance. Recently, large language models (LLMs) like GPT…

Software Engineering · Computer Science 2024-04-15 Chenyuan Zhang , Hao Liu , Jiutian Zeng , Kejing Yang , Yuhong Li , Hui Li

Developing secure smart contracts remains a challenging task. Existing approaches are either impractical or leave the burden to developers for fixing bugs. In this paper, we propose the first practical smart contract compiler, called HCC,…

Cryptography and Security · Computer Science 2024-12-09 Jens-Rene Giesen , Sebastien Andreina , Michael Rodler , Ghassan O. Karame , Lucas Davi

Smart contract developers frequently seek solutions to developmental challenges on Q&A platforms such as Stack Overflow (SO). Although community responses often provide viable solutions, the embedded code snippets can also contain hidden…

Software Engineering · Computer Science 2024-07-24 Jiachi Chen , Chong Chen , Jiang Hu , John Grundy , Yanlin Wang , Ting Chen , Zibin Zheng

Security vulnerabilities present in a code that has been written in diverse programming languages are among the most critical yet complicated aspects of source code to detect. Static analysis tools based on rule-based patterns usually do…

Cryptography and Security · Computer Science 2025-08-19 Hael Abdulhakim Ali Humran , Ferdi Sonmez

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…

Cryptography and Security · Computer Science 2021-06-28 Rachit Agarwal , Tanmay Thapliyal , Sandeep Kumar Shukla

Smart contracts have emerged as key components within decentralized environments, enabling the automation of transactions through self-executing programs. While these innovations offer significant advantages, they also present potential…

Cryptography and Security · Computer Science 2025-11-17 Biagio Boi , Christian Esposito

Context: Smart contracts are computerized self-executing contracts that contain clauses, which are enforced once certain conditions are met. Smart contracts are immutable by design and cannot be modified once deployed, which ensures…

Software Engineering · Computer Science 2023-04-14 Ilham Qasse , Mohammad Hamdaqa , Björn Þór Jónsson

Smart contracts manage a large number of digital assets nowadays. Bugs in these contracts have led to significant financial loss. Verifying the correctness of smart contracts is, therefore, an important task. This paper presents an…

Software Engineering · Computer Science 2023-08-03 Haoxian Chen , Lan Lu , Brendan Massey , Yuepeng Wang , Boon Thau Loo

Blockchain has become particularly popular due to its promise to support business-critical services in very different domains (e.g., retail, supply chains, healthcare). Blockchain systems rely on complex middleware, like Ethereum or…

Software Engineering · Computer Science 2020-10-23 Ákos Hajdu , Naghmeh Ivaki , Imre Kocsis , Attila Klenik , László Gönczy , Nuno Laranjeiro , Henrique Madeira , András Pataricza

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

Formal verification of smart contracts has become a hot topic in academic and industrial research, given the growing value of assets managed by decentralized applications and the consequent incentive for adversaries to tamper with them.…

Logic in Computer Science · Computer Science 2024-02-19 Massimo Bartoletti , Fabio Fioravanti , Giulia Matricardi , Roberto Pettinau , Franco Sainas

Upgradeable smart contracts (USCs) have been widely adopted to enable modifying deployed smart contracts. While USCs bring great flexibility to developers, improper usage might introduce new security issues, potentially allowing attackers…

Cryptography and Security · Computer Science 2024-03-05 Xiaofan Li , Jin Yang , Jiaqi Chen , Yuzhe Tang , Xing Gao

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