@inproceedings {272254, author = {Alexander Heinrich and Matthias Hollick and Thomas Schneider and Milan Stute and Christian Weinert}, title = {{PrivateDrop}: Practical {Privacy-Preserving} Authentication for Apple {AirDrop}}, booktitle = {30th USENIX Security Symposium (USENIX Security 21)}, year = {2021}, isbn = {978-1-939133-24-3}, pages = {3577--3594}, url = {https://www.usenix.org/conference/usenixsecurity21/presentation/heinrich}, publisher = {USENIX Association}, month = aug }