Author

Yuhong Nan

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Open access Oct 2026

RPCSpecter: Detecting Blockchain RPC Bugs through a Specification-Driven, Constraint-Aware Fuzzing Approach

Blockchain Remote Procedure Calls (RPCs) serve as the primary interface for interaction between decentralized applications and blockchain networks. Despite their critical role, existing RPC implementations are prone to bugs that are often challenging to detect using traditional testing methods. In this paper, we introd...

Yu Xiao, Yuhong Nan, Zhi-Jie Zhong et al. · Proceedings of the ACM on So... · 0 citations

Preprint Oct 2026

AgentTracer: Tracing Indirect Prompt Injection Attack through Fine-Grained Intention-Execution Alignment

Large language model (LLM) agents interact with external resources to complete complex user tasks, exposing them to indirect prompt injection (IPI), where malicious instructions redirect agents toward attacker-intended tasks. Since IPI is difficult to defend against in real-world environments, post-incident tracing is...

Zi-Tong Yao, Jiang-Rong Wu, Yi-Xi Lin et al. · 0 citations

Preprint Sep 2026

SmartMemory: Detecting On-chain-off-chain Communication Inconsistency for Smart Contract via Memory-based Agent

Smart contracts underpin decentralized finance, where growing demand for on-chain/off-chain communication(OFC) has driven diverse applications such as cross-chain bridges, real-world asset tokenization, and fiat-backed stablecoins. TheOFC-related security incidents in these applications are increasingly frequent, but p...

Ze-Qin Liao, Yuhong Nan, Heng-Long Liang et al. · 0 citations