High-Entropy visual identification for touch screen devices

IACR Cryptology ePrint Archive, pp. 182-198, 2012.

Cited by: 3|Views27


We exhibit a system for improving the quality of user-derived keying material on touch-screen 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 [21], using no additional elect...More



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