CoreGuard: Safeguarding Foundational Capabilities of LLMs Against Model Stealing in Edge Deployment - Li, Qinfeng; Luo, Tianyue; Zhang, Xuhong; Xie, Yangfan; Shen, Zhiqiang; Zhang, Lijun; Jin, Yier; Peng, Hao; Zhao, Xinkui; Zhu, XianWei; Yin, Jianwei (Advances in Neural Information Processing Systems, 2025)