9 papers
A Lifecycle-Oriented Detection and Defense Framework for Price Manipulation Attacks in DeFi
Xingyu Xiong, Chang Liu, Xiaoqi Li
Aiming at frequent oracle price manipulation attacks in Decentralized Finance (DeFi), this paper investigates attack patterns, vulnerability types, risk assessment, automated detec…
SAEFUZZ: Smart Contract Vulnerability Detection through Statically Guided Evolutionary Fuzzing
Shiting Yu, Rundong Wei, Xiaoqi Li
The effectiveness of smart contract fuzzing depends strongly on whether generated transactions reach deep, state-dependent execution paths. Existing fuzzers often generate highly r…
Ethereum NFT Smart Contracts: Knowledge-Guided Vulnerability Detection with LLM and Code Slicing
Deyu Yang, Rundong Wei, Xiaoqi Li
Ethereum non-fungible tokens (NFTs) implement ownership, transfer, authorization, and metadata operations through smart contracts, making contract vulnerabilities a direct risk to…
DSA Nonce Vulnerabilities: An Interactive Analysis
Rundong Wei, Xiaomei Tian, Xiaoqi Li
Digital signatures are fundamental to identity authentication and data integrity in cybersecurity, and the NIST-standardized Digital Signature Algorithm (DSA) frequently appears in…
System Password Security: Attack and Defense Mechanisms
Chaofang Shi, Zhongwen Li, Xiaoqi Li
System passwords serve as critical credentials for user authentication and access control when logging into operating systems or applications. Upon entering a valid password, users…
Security Analysis of Web Applications Based on Gruyere
Yonghao Ni, Zhongwen Li, Xiaoqi Li
With the rapid development of Internet technologies, web systems have become essential infrastructures for modern information exchange and business operations. However, alongside t…
MoveScanner: Analysis of Security Risks of Move Smart Contracts
Yuhe Luo, Zhongwen Li, Xiaoqi Li
As blockchain technology continues to evolve, the security of smart contracts has increasingly drawn attention from both academia and industry. The Move language, with its unique r…
Security Analysis of ChatGPT: Threats and Privacy Risks
Yushan Xiang, Zhongwen Li, Xiaoqi Li
As artificial intelligence technology continues to advance, chatbots are becoming increasingly powerful. Among them, ChatGPT, launched by OpenAI, has garnered widespread attention…
Information Security Based on LLM Approaches: A Review
Chang Gong, Zhongwen Li, Xiaoqi Li
Information security is facing increasingly severe challenges, and traditional protection means are difficult to cope with complex and changing threats. In recent years, as an emer…