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Blockchain is a decentralized, distributed ledger technology that ensures transparency, security, and immutability through cryptographic techniques. However, advancements in quantum computing threaten the security of classical cryptographic…

Cryptography and Security · Computer Science 2026-01-14 Nicholas J. C. Papadopoulos

Smart contract vulnerabilities, particularly improper Access Control that allows unauthorized execution of restricted functions, have caused billions of dollars in losses. GitHub hosts numerous smart contract repositories containing source…

Software Engineering · Computer Science 2025-10-23 Chong Chen , Jiachi Chen , Lingfeng Bao , David Lo , Yanlin Wang , Zhenyu Shan , Ting Chen , Guangqiang Yin , Jianxing Yu , Zibin Zheng

Smart contracts deployed on blockchain platforms are vulnerable to various security vulnerabilities. However, only a small number of Ethereum contracts have released their source code, so vulnerability detection at the bytecode level is…

Cryptography and Security · Computer Science 2026-02-03 Jiuyang Bu , Wenkai Li , Zongwei Li , Zeng Zhang , Xiaoqi Li

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

The rapid growth of Ethereum has made it more important to quickly and accurately detect smart contract vulnerabilities. While machine-learning-based methods have shown some promise, many still rely on rule-based preprocessing designed by…

Cryptography and Security · Computer Science 2025-12-15 Uisang Lee , Changhoon Chung , Junmo Lee , Soo-Mook Moon

DEX, or decentralized exchange, is a prominent class of decentralized finance (DeFi) applications on blockchains, attracting a total locked value worth tens of billions of USD today. This paper presents the first large-scale empirical study…

Cryptography and Security · Computer Science 2024-01-23 Jiaqi Chen , Yibo Wang , Yuxuan Zhou , Wanning Ding , Yuzhe Tang , XiaoFeng Wang , Kai Li

Smart contracts are Turing-complete programs running on the blockchain. They are immutable and cannot be modified, even when bugs are detected. Therefore, ensuring smart contracts are bug-free and well-designed before deploying them to the…

Software Engineering · Computer Science 2021-03-24 Jiachi Chen , Xin Xia , David Lo , John Grundy , Xiapu Luo , Ting Chen

WebAssembly (WASM) has emerged as a crucial technology in smart contract development for several blockchain platforms. Unfortunately, since their introduction, WASM smart contracts have been subject to several security incidents caused by…

Cryptography and Security · Computer Science 2024-12-06 Wansen Wang , Caichang Tu , Zhaoyi Meng , Wenchao Huang , Yan Xiong

We present SOLAR, a new analysis tool for automatically detecting standard violation errors in Ethereum smart contracts.Given the Ethereum Virtual Machine (EVM) bytecode of a smart contract and a user specified constraint or invariant…

Cryptography and Security · Computer Science 2019-02-20 Ao Li , Fan Long

Smart contracts enable contract terms to be automatically executed and verified on the blockchain, and recent years have witnessed numerous applications of them in areas such as financial institutions and supply chains. The execution logic…

Software Engineering · Computer Science 2025-12-16 Lantian Li , Yuyu Chen , Jingwen Wu , Yue Pan , Zhongxing Yu

Internet of Things (IoT) consists of a large number of devices connected through a network, which exchange a high volume of data, thereby posing new security, privacy, and trust issues. One way to address these issues is ensuring data…

Cryptography and Security · Computer Science 2021-04-29 Fatimah Aljaafari , Rafael Menezes , Mustafa A. Mustafa , Lucas C. Cordeiro

Smart contracts, closely intertwined with cryptocurrency transactions, have sparked widespread concerns about considerable financial losses of security issues. To counteract this, a variety of tools have been developed to identify…

Cryptography and Security · Computer Science 2025-02-26 Guokai Sun , Yuan Zhuang , Shuo Zhang , Xiaoyu Feng , Zhenguang Liu , Liguo Zhang

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

Smart contract (SC) is an extension of BlockChain technology. Ethereum BlockChain was the first to incorporate SC and thus started a new era of crypto-currencies and electronic transactions. Solidity helps to program the SCs. Still, soon…

Cryptography and Security · Computer Science 2021-01-01 Zulfiqar Ali Khan , Akbar Siami Namin

The EOSIO blockchain, one of the representative Delegated Proof-of-Stake (DPoS) blockchain platforms, has grown rapidly recently. Meanwhile, a number of vulnerabilities and high-profile attacks against top EOSIO DApps and their smart…

Cryptography and Security · Computer Science 2020-07-31 Ningyu He , Ruiyi Zhang , Lei Wu , Haoyu Wang , Xiapu Luo , Yao Guo , Ting Yu , Xuxian Jiang

Smart contracts are a major tool in Ethereum transactions. Therefore hackers can exploit them by adding code vulnerabilities to their sources and using these vulnerabilities for performing malicious transactions. This paper presents two…

Cryptography and Security · Computer Science 2024-08-19 Natan Katz

EVMbench, released by OpenAI, Paradigm, and OtterSec, is the first large-scale benchmark for AI agents on smart contract security. Its results -- agents detect up to 45.6% of vulnerabilities and exploit 72.2% of a curated subset -- have…

Cryptography and Security · Computer Science 2026-03-12 Chaoyuan Peng , Lei Wu , Yajin Zhou

The rise of smart contract systems such as Ethereum has resulted in a proliferation of blockchain-based decentralized applications including applications that store and manage a wide range of data. Current smart contracts are designed to be…

Cryptography and Security · Computer Science 2019-02-26 Chao Li , Balaji Palanisamy , Runhua Xu

One of the most significant challenges in the field of software code auditing is the presence of vulnerabilities in software source code. Every year, more and more software flaws are discovered, either internally in proprietary code or…

Cryptography and Security · Computer Science 2023-06-16 Mst Shapna Akter , Hossain Shahriar , Juan Rodriguez Cardenas , Sheikh Iqbal Ahamed , Alfredo Cuzzocrea

Since the inception of permissionless blockchains with Bitcoin in 2008, it became apparent that their most well-suited use case is related to making the financial system and its advantages available to everyone seamlessly without depending…

General Finance · Quantitative Finance 2023-06-16 Georgios Palaiokrassas , Sandro Scherrers , Iason Ofeidis , Leandros Tassiulas