High-Entropy Visual Identification for Touch Screen Devices
نویسندگان
چکیده
We exhibit a system for improving the quality of user-derived keying material on touchscreen devices. We allow a device to recover previously generated, highly entropic data suitable for use as (part of) a strong secret key from a user’s act of identifying to the device. Our system uses visual cryptography [22], using no additional electronics and no memorization on the part of the user. Instead, we require the use of a transparency overlaid on the touch-screen. Our scheme is similar to the identification scheme of [23] but tailored for constrained, touch-screen displays.
منابع مشابه
Spatial Tactile Feedback Support for Mobile Touch-screen Devices
Spatial Tactile Feedback Support for Mobile Touch-screen Devices Koji Yatani Doctor of Philosophy Graduate Department of Computer Science University of Toronto 2011 Mobile touch-screen devices have the capability to accept flexible touch input, and can provide a larger screen than mobile devices with physical buttons. However, many of the user interfaces found in mobile touch-screen devices req...
متن کاملEnhanced auditory feedback for Korean touch screen keyboards
With the increasing popularity of touch screen mobile devices, improving the usability and the user experience while inputting text on these devices is becoming increasingly important. Most conventional touch screen keyboards on mobile devices rely heavily on visual feedback, while auditory feedback seldom includes any useful information about what is being inputted by the user. The auditory fe...
متن کاملTowards Designing User Interfaces on Mobile Touch- screen Devices for People with Visual Impairment
Although touch screens have great input flexibility, they are largely inaccessible to people with visual impairment. One of the issues with touch screens is the lack of clear tactile feedback, which is critical for visually-impaired people. We developed SemFeel, a tactile feedback technology that can express some semantic information by using multiple vibration motors in concert. We believe tha...
متن کاملComparison of Usability of Touch-screen and Button Cell Phones Among Elderly Users
Background and Objectives: The use of new technologies, particularly mobile phones, is drastically growing on a daily basis. The usability of mobile phones can be determined for different age groups in order to reach a balanced development plan with respect to this technology. The present study aimed to investigate and compare the usability of touch-screen and button cell phones among Iranian e...
متن کاملFinger Based Technique (FBT): An Innovative System for Improved Usability for the Blind Users' Dynamic Interaction with Mobile Touch Screen Devices
prototypes, a novel interaction system for blind users, which is especially designed and developed for non-visual touch screen devices and their applications. The FBT prototypes were developed with virtual keys to be identified based on finger holding positions. Two different models namely the single digit FBT and double digit FBT were propounded. FBT technique were applied using two different ...
متن کامل