@article{confidentialguardiancryptographically,
  title = {Confidential Guardian: Cryptographically Prohibiting the Abuse of Model Abstention},
  author = {Stephan Rabanser and Ali Shahin Shamsabadi and Olive Franzese and Xiao Wang and Adrian Weller and Nicolas Papernot},
  year = {2025},
  eprint = {2505.23968},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2505.23968v1},
}