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A smart contract is a digital program of transaction protocol (rules of contract) based on the consensus architecture of blockchain. Smart contracts with Blockchain are modern technologies that have gained enormous attention in scientific…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-02-17 Norah M. Alshahrani , M. L. Mat Kiah , B. B. Zaidan , A. H. Alamoodi , Abdu Saif

Blockchain technology transformed the digital sphere by providing a transparent, secure, and decentralized platform for data security across a range of industries, including cryptocurrencies and supply chain management. Blockchain's…

Cryptography and Security · Computer Science 2023-06-22 Bilash Saha , Md Mehedi Hasan , Nafisa Anjum , Sharaban Tahora , Aiasha Siddika , Hossain Shahriar

Ethereum smart contracts, which are autonomous decentralized applications on the blockchain that manage assets often exceeding millions of dollars, have become primary targets for cyberattacks. In 2023 alone, such vulnerabilities led to…

Cryptography and Security · Computer Science 2023-12-29 Christoph Sendner , Lukas Petzi , Jasper Stang , Alexandra Dmitrienko

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

The advent of blockchain technology and its adoption across various sectors have raised critical discussions about the need for regulatory mechanisms to ensure consumer protection, maintain financial stability, and address privacy concerns…

Cryptography and Security · Computer Science 2024-07-16 Oshani Seneviratne

Smart contracts are stateful programs deployed on blockchains; they secure over a trillion dollars in transaction value per year. High-stakes smart contracts often rely on timely alerts about external events, but prior work has not analyzed…

Cryptography and Security · Computer Science 2026-04-14 Marwa Mouallem , Lorenz Breidenbach , Ittay Eyal , Ari Juels

The security of smart contracts, which are an important part of blockchain technology, has attracted much attention. In particular, reentrancy vulnerability, which is hidden and complex, poses a great threat to smart contracts. In order to…

Cryptography and Security · Computer Science 2023-12-27 Chang Chu

This paper introduces a method for detecting vulnerabilities in smart contracts using static analysis and a multi-objective optimization algorithm. We focus on four types of vulnerabilities: reentrancy, call stack overflow, integer…

Software Engineering · Computer Science 2024-10-02 Dongcheng Li , W. Eric Wong , Xiaodan Wang , Sean Pan , Liang-Seng Koh

Blockchains are modern distributed systems that provide decentralized financial capabilities with trustable guarantees. Smart contracts are programs written in specialized programming languages running on a blockchain and govern how tokens…

Cryptography and Security · Computer Science 2022-07-11 Margarita Capretto , Martin Ceresa , Cesar Sanchez

In an increasingly complex contractual landscape, the demand for transparency, security, and efficiency has intensified. Blockchain technology, with its decentralized and immutable nature, addresses these challenges by reducing intermediary…

Cryptography and Security · Computer Science 2025-07-23 Lambard Maxence , Bertelle Cyrille , Duvallet Claude

As time progresses, the need for more secure applications grows exponentially. The different types of sensitive information that is being transferred virtually has sparked a rise in systems that leverage blockchain. Different sectors are…

Cryptography and Security · Computer Science 2024-01-04 Myles Lewis , Chris Crawford

This chapter contributes to evolving the versatility and complexity of blockchain-enabled services through extending the functionality of blockchain-enforced smart contracts. The contributions include: (i) a method for automated management…

Cryptography and Security · Computer Science 2018-06-29 Craig Wright , Antoaneta Serguieva

As an emerging service framework built by combining cryptography, P2P network, consensus mechanism and innovative contract technology, blockchain has been widely used in digital finance, data sharing, message traceability and electronic…

Cryptography and Security · Computer Science 2025-08-05 Wenwen Zhou , Dongyang Lyu , Xiaoqi Li

The widespread adoption of blockchain technology has amplified the spectrum of potential threats to its integrity and security. The ongoing quest to exploit vulnerabilities emphasizes how critical it is to expand on current research…

Cryptography and Security · Computer Science 2024-04-30 Kaustubh Dwivedi , Ankit Agrawal , Ashutosh Bhatia , Kamlesh Tiwari

The concept of smart grid has been introduced as a new vision of the conventional power grid to figure out an efficient way of integrating green and renewable energy technologies. In this way, Internet-connected smart grid, also called…

Cryptography and Security · Computer Science 2020-05-14 Muhammad Baqer Mollah , Jun Zhao , Dusit Niyato , Kwok-Yan Lam , Xin Zhang , Amer M. Y. M. Ghias , Leong Hai Koh , Lei Yang

Smart contracts with external data are crucial for functionality but pose security and reliability concerns. Statistical and quantitative studies on this interaction are scarce. To address this gap, we analyzed 10,500 smart contracts,…

Cryptography and Security · Computer Science 2026-02-10 Yishun Wang , Xiaoqi Li , Shipeng Ye , Lei Xie , Ju Xing

In this paper we discuss how conventional business contracts can be converted into smart contracts---their electronic equivalents that can be used to systematically monitor and enforce contractual rights, obligations and prohibitions at run…

Computers and Society · Computer Science 2018-05-03 Carlos Molina-Jimenez , Ellis Solaiman , Ioannis Sfyrakis , Irene Ng , Jon Crowcroft

Smart Contracts (SCs) are programs stored in a Blockchain to ensure agreements between two or more parties. Due to the unchangeable essence of Blockchain, failures or errors in SCs become perpetual once published. The reliability of SCs is…

This paper presents a comprehensive survey of the existing blockchain protocols for the Internet of Things (IoT) networks. We start by describing the blockchains and summarizing the existing surveys that deal with blockchain technologies.…

Cryptography and Security · Computer Science 2019-01-11 Mohamed Amine Ferrag , Makhlouf Derdour , Mithun Mukherjee , Abdelouahid Derhab , Leandros Maglaras , Helge Janicke

Decentralized Finance (DeFi) is emerging as a peer-to-peer financial ecosystem, enabling participants to trade products on a permissionless blockchain. Built on blockchain and smart contracts, the DeFi ecosystem has experienced explosive…

Cryptography and Security · Computer Science 2023-09-07 Peng Qian , Rui Cao , Zhenguang Liu , Wenqing Li , Ming Li , Lun Zhang , Yufeng Xu , Jianhai Chen , Qinming He