8 papers
MixGuard: Towards Detecting and Understanding Mixer Laundering on Ethereum
Qishuang Fu, Hang Zheng, Xihan Xiong +7
Mixers protect privacy by concealing deposit--withdrawal links, but are also abused to launder illicit funds. Existing anti-money laundering studies do not specifically target mixe…
SoK: Cross-Chain Transaction Identification and Matching
Hang Zheng, Qishuang Fu, Joseph Liu +3
Cross-chain bridges, instant cryptocurrency exchanges, and centralized cross-ledger platforms move assets across an increasingly multi-chain ecosystem. However, these systems have…
FlowShield: cryptocurrency anti-money laundering with transaction semantics parsing and fund flow tracking
Qishuang Fu, Andreas Deppeler, Joseph K. Liu +5
Cryptocurrency anti-money laundering (Crypto AML) is increasingly challenged by sophisticated laundering behaviors that rapidly fragment stolen assets through diverse semantics and…
Measuring Memecoin Fragility
Yuexin Xiang, Qishuang Fu, Yuquan Li +3
Memecoins, emerging from internet culture and community-driven narratives, have rapidly evolved into a unique class of crypto assets. Unlike technology-driven cryptocurrencies, the…
SoK: Stablecoins in Retail Payments
Yuquan Li, Yuexin Xiang, Qin Wang +3
Stablecoins have emerged as a rapidly growing digital payment instrument, raising the question of whether blockchain-based settlement can function as a substitute for incumbent car…
Leveraging Large Language Models to Bridge Cross-Domain Transparency in Stablecoins
Yuexin Xiang, Yuchen Lei, Yuanzhe Zhang +4
Stablecoins such as USDT and USDC aspire to peg stability by coupling issuance controls with reserve attestations. In practice, however, transparency remains fragmented across hete…
Large Language Models for Cryptocurrency Transaction Analysis: A Bitcoin Case Study
Yuchen Lei, Yuexin Xiang, Qin Wang +5
Cryptocurrencies are widely used, yet current methods for analyzing transactions often rely on opaque, black-box models. While these models may achieve high performance, their outp…
Compatible Certificateless and Identity-Based Cryptosystems for Heterogeneous IoT
Rouzbeh Behnia, Attila A. Yavuz, Muslum Ozgur Ozmen +1
Certificates ensure the authenticity of users' public keys, however their overhead (e.g., certificate chains) might be too costly for some IoT systems like aerial drones. Certifica…