Don't bump, shake on it: The exploitation of a popular accelerometer-based smart phone exchange and its secure replacement.   [PDF, BibTeX, ]
Ahren Studer, Timothy Passaro, and Lujo Bauer.
In ACSAC '11: Proceedings of the 27th Annual Computer Security Applications Conference, pages 333--342, December 2011. ACM. © ACM  DOI:10.1145/2076732.2076780