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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…

Cryptography and Security · Computer Science 2022-09-14 Peng Qian , Zhenguang Liu , Qinming He , Butian Huang , Duanzheng Tian , Xun Wang

Smart contracts are essential for managing digital assets in blockchain networks, highlighting the need for effective security measures. This paper introduces SmartLLMSentry, a novel framework that leverages large language models (LLMs),…

Cryptography and Security · Computer Science 2024-12-02 Oualid Zaazaa , Hanan El Bakkali

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

Smart contracts are self-executing programs on a blockchain to ensure immutable and transparent agreements without the involvement of intermediaries. Despite the growing popularity of smart contracts for many blockchain platforms like…

Software Engineering · Computer Science 2023-03-27 Taeyoung Kim , Yunhee Jang , Chanjong Lee , Hyungjoon Koo , Hyoungshick Kim

Smart contracts, integral to blockchain ecosystems, enable decentralized applications to execute predefined operations without intermediaries. Their ability to enforce trustless interactions has made them a core component of platforms such…

Cryptography and Security · Computer Science 2025-06-10 Mesut Ozdag

Blockchain programs (also known as smart contracts) manage valuable assets like cryptocurrencies and tokens, and implement protocols in domains like decentralized finance (DeFi) and supply-chain management. These types of applications…

Cryptography and Security · Computer Science 2023-11-09 Monika di Angelo , Thomas Durieux , João F. Ferreira , Gernot Salzer

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

More than eight million smart contracts have been deployed into Ethereum, which is the most popular blockchain that supports smart contract. However, less than 1% of deployed smart contracts are open-source, and it is difficult for users to…

Software Engineering · Computer Science 2020-07-21 Xiaoqi Li , Ting Chen , Xiapu Luo , Tao Zhang , Le Yu , Zhou Xu

Smart contracts have been increasingly used together with blockchains to automate financial and business transactions. However, many bugs and vulnerabilities have been identified in many contracts which raises serious concerns about smart…

Software Engineering · Computer Science 2020-05-21 Zhipeng Gao , Lingxiao Jiang , Xin Xia , David Lo , John Grundy

Smart contracts on blockchains are prone to diverse security vulnerabilities that can lead to significant financial losses due to their immutable nature. Existing detection approaches often lack flexibility across vulnerability types and…

Cryptography and Security · Computer Science 2026-05-06 Xing Zhang , Keyu Zhang , Taohong Zhu , Anbang Ruan

With the development of blockchain technology, more and more attention has been paid to the intersection of blockchain and education, and various educational evaluation systems and E-learning systems are developed based on blockchain…

Cryptography and Security · Computer Science 2023-03-09 Zhifeng Wang , Wanxuan Wu , Chunyan Zeng , Jialong Yao , Yang Yang , Hongmin Xu

With the rapid development of blockchain technology, smart contract security has become a critical challenge. Existing smart contract vulnerability detection methods face three main issues: (1) Insufficient quality of datasets, lacking…

Cryptography and Security · Computer Science 2024-11-12 Lei Yu , Shiqi Chen , Hang Yuan , Peng Wang , Zhirong Huang , Jingyuan Zhang , Chenjie Shen , Fengjun Zhang , Li Yang , Jiajia Ma

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

An appealing feature of blockchain technology is smart contracts. A smart contract is executable code that runs on top of the blockchain to facilitate, execute and enforce an agreement between untrusted parties without the involvement of a…

Cryptography and Security · Computer Science 2017-10-18 Maher Alharby , Aad van Moorsel

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

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…

Cryptography and Security · Computer Science 2024-07-12 Christopher De Baets , Basem Suleiman , Armin Chitizadeh , Imran Razzak

The introduction of smart contract functionality marks the advent of the blockchain 2.0 era, enabling blockchain technology to support digital currency transactions and complex distributed applications. However, many smart contracts have…

Cryptography and Security · Computer Science 2026-01-16 Hongli Peng , Xiaoqi Li , Wenkai Li

With the booming development of blockchain technology, smart contracts have been widely used in finance, supply chain, Internet of things and other fields in recent years. However, the security problems of smart contracts become…

Cryptography and Security · Computer Science 2026-02-03 Huanhuan Zou , Zongwei Li , Xiaoqi Li

Blockchain technology has experienced rapid growth and has been widely adopted across various sectors, including healthcare, finance, and energy. However, blockchain platforms remain vulnerable to a broad range of cyberattacks, particularly…

Cryptography and Security · Computer Science 2025-12-15 Do Hai Son , Le Vu Hieu , Tran Viet Khoa , Yibeltal F. Alem , Hoang Trong Minh , Tran Thi Thuy Quynh , Nguyen Viet Ha , Nguyen Linh Trung

Smart contract security has progressed from vulnerability detection toward a broader research agenda that includes semantic reasoning, automated repair, adversarial robustness, and real-time exploit detection. This paper develops a…

Cryptography and Security · Computer Science 2026-05-19 Tamer Abdelaziz