Research on Deep Learning Techniques in Breaking Text-Based Captchas and Designing Image-Based Captcha. - Mengyun Tang; Haichang Gao; Yang Zhang; Yi Liu 042; Ping Zhang; Ping Wang 027 (IEEE Trans. Inf. Forensics Secur., 2018)

Simple and Easy: Transfer Learning-Based Attacks to Text CAPTCHA. - Ping Wang 027; Haichang Gao; Ziyu Shi; Zhongni Yuan; Jiangping Hu (IEEE Access, 2020)

A Security Analysis of Captchas With Large Character Sets. - Ping Wang 027; Haichang Gao; Qingxun Rao; Sainan Luo; Zhongni Yuan; Ziyu Shi (IEEE Trans. Dependable Secur. Comput., 2021)

A deep learning-based attack on text CAPTCHAs by using object detection techniques. - Jiawei Nian; Ping Wang 027; Haichang Gao; Xiaoyan Guo (IET Inf. Secur., 2022)

AdvFunMatch: When Consistent Teaching Meets Adversarial Robustness. - Zihui Wu; Haichang Gao; Bingqian Zhou; Ping Wang 027 (CoRR, 2023)

An Experimental Investigation of Text-based CAPTCHA Attacks and Their Robustness. - Ping Wang 027; Haichang Gao; Xiaoyan Guo; Chenxuan Xiao; Fuqi Qi; Zheng Yan 002 (ACM Comput. Surv., 2023)

Extended Research on the Security of Visual Reasoning CAPTCHA. - Ping Wang 027; Haichang Gao; Chenxuan Xiao; Xiaoyan Guo; Yipeng Gao; Yang Zi (IEEE Trans. Dependable Secur. Comput., 2023)

Improving the Security of Audio CAPTCHAs With Adversarial Examples. - Ping Wang 027; Haichang Gao; Xiaoyan Guo; Zhongni Yuan; Jiawei Nian (IEEE Trans. Dependable Secur. Comput., 2024)

A Stability-Enhanced Dynamic Backdoor Defense in Federated Learning for IIoT. - Zhixuan Ma; Haichang Gao; Shangwen Li; Ping Wang 027 (IEEE Trans. Ind. Informatics, 2024)

The Dark Side of Function Calling: Pathways to Jailbreaking Large Language Models. - Zihui Wu; Haichang Gao; Jianping He 008; Ping Wang 027 (COLING, 2025)

Whispers of Data: Unveiling Label Distributions in Federated Learning Through Virtual Client Simulation. - Zhixuan Ma; Haichang Gao; Junxiang Huang; Ping Wang 027 (CoRR, 2025)