4 papers
Evasion Under Blockchain Sanctions
Endong Liu, Mark Ryan, Liyi Zhou +1
Sanctioning blockchain addresses has become a common regulatory response to malicious activities. However, enforcement on permissionless blockchains remains challenging due to comp…
Beyond Red-Teaming: Formal Guarantees of LLM Guardrail Classifiers
Nikita Kezins, Urbas Ekka, Pascal Berrang +1
Guardrail Classifiers defend production language models against harmful behavior, but although results seem promising in testing, they provide no formal guarantees. Providing forma…
3S-Attack: Spatial, Spectral and Semantic Invisible Backdoor Attack Against DNN Models
Jianyao Yin, Luca Arnaboldi, Honglong Chen +2
Backdoor attacks implant hidden behaviors into models by poisoning training data or modifying the model directly. These attacks aim to maintain high accuracy on benign inputs while…
Talking Transactions: Decentralized Communication through Ethereum Input Data Messages (IDMs)
Xihan Xiong, Zhipeng Wang, Qin Wang +3
Can you imagine, blockchain transactions can talk! In this paper, we study how they talk and what they talk about. We focus on the input data field of Ethereum transactions, which…