@article{zhang2021passo,
  title={EL PASSO: Efficient and Lightweight Privacy-preserving Single Sign On},
  author={Zhang, Zhiyi and Kr{\'o}l, Micha{\l} and Sonnino, Alberto and Zhang, Lixia and Rivi{\`e}re, Etienne},
  journal={Proceedings on Privacy Enhancing Technologies (PETS)},
  volume={2021},
  number={2},
  pages={70--87},
  year={2021},
  publisher={Sciendo}
}