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Author

Yanjun Zhang

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Preprint Aug 2026

Tracing Provenance and Detecting Tampering with Complementary LLM Watermarks

Watermarking LLM-generated text is an important task for tracing its provenance. Existing LLM watermarks preserve provenance under editing, but this same robustness allows an adversary to alter critical content while retaining attribution, a vulnerability known as piggyback spoofing. We introduce an innovative watermar...

Xiao-Yang Feng, Yanjun Zhang, He Zhang et al. · 0 citations
Conference Open access Sep 2026

IdentityMask: A Robust Face-Centric Privacy Protection Against Unauthorized Personalization of Diffusion Models

This work proposes IdentityMask, a robust protection framework that shifts the paradigm from arbitrary confusion to precise, targeted feature corruption, and consistently outperforms prior state-of-the-art approaches in both protection efficacy and robustness.

Wei-Wei Tan, Rui Wang, Lihua Jing et al. · 0 citations
Conference Open access Sep 2026

GRASP: Hard-Label Black-Box Malware Evasion with Higher Success, Fewer Queries, and Smaller Perturbations

Gradient-seeded Reinforcement Learning And Stealthy Pruning (GRASP), a three-stage framework that tackles challenges of adversarial attacks on machine learning-based malware detectors, and out-performs baselines, achieving higher attack success with fewer queries and smaller file-size inflation.

Yu-Tong Liu, Jian-Ting Ning, Qi Feng et al. · 1 citation

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