@misc{bjorgvinsdottir2014warp,
  title={Warp2: A Method of Email and Messaging with Encrypted Addressing and Headers},
  author={H. Bjorgvinsdottir and P. M. Bentley},
  year={2014},
  eprint={1411.6409},
  archivePrefix={arXiv},
  primaryClass={cs.CR},
  url={https://arxiv.org/abs/1411.6409}
}