A user interface using fingerprint recognition: holding commands and data objects on fingers
Proceedings of the 11th annual ACM symposium on User interface software and technology
DiamondTouch: a multi-user touch technology
Proceedings of the 14th annual ACM symposium on User interface software and technology
XWand: UI for intelligent spaces
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Introduction to Modern Cryptography (Chapman & Hall/Crc Cryptography and Network Security Series)
Introduction to Modern Cryptography (Chapman & Hall/Crc Cryptography and Network Security Series)
SurfaceFusion: unobtrusive tracking of everyday objects in tangible user interfaces
GI '08 Proceedings of graphics interface 2008
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
IdWristbands: IR-based user identification on multi-touch surfaces
ACM International Conference on Interactive Tabletops and Surfaces
See me, see you: a lightweight method for discriminating user touches on tabletop displays
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Bootstrapper: recognizing tabletop users by their shoes
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Distinguishing users with capacitive touch communication
Proceedings of the 18th annual international conference on Mobile computing and networking
Carpus: a non-intrusive user identification technique for interactive surfaces
Proceedings of the 25th annual ACM symposium on User interface software and technology
Proceedings of the 25th annual ACM symposium on User interface software and technology
Acoustic barcodes: passive, durable and inexpensive notched identification tags
Proceedings of the 25th annual ACM symposium on User interface software and technology
Finger and hand detection for multi-touch interfaces based on maximally stable extremal regions
Proceedings of the 2012 ACM international conference on Interactive tabletops and surfaces
Personal clipboards for individual copy-and-paste on shared multi-user surfaces
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Fiberio: a touchscreen that senses fingerprints
Proceedings of the 26th annual ACM symposium on User interface software and technology
POSTER: TouchCtrl: fine-grained access control for collaborative environments
Proceedings of the 2013 ACM SIGSAC conference on Computer & communications security
MagnetiCode: physical mobile interaction through time-encoded magnetic identification tags
Proceedings of the 8th International Conference on Tangible, Embedded and Embodied Interaction
Left and right hand distinction for multi-touch tabletop interactions
Proceedings of the 19th international conference on Intelligent User Interfaces
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Multi-touch displays are particularly attractive for collaborative work because multiple users can interact with applications simultaneously. However, unfettered access can lead to loss of data confidentiality and integrity. For example, one user can open or alter files of a second user, or impersonate the second user, while the second user is absent or not looking. Towards preventing these attacks, we explore means to associate the touches of a user with the user's identity in a fashion that is cryptographically sound as well as easy to use. We describe our current solution, which relies on a ring-like device that transmits a continuous pseudorandom bit sequence in the form of infrared light pulses. The multi-touch display receives and localizes the sequence, and verifies its authenticity. Each sequence is bound to a particular user, and all touches in the direct vicinity of the location of the sequence on the display are associated with that user.