5 search results - page 1 / 1 » Order and entropy in picture passwords |
GRAPHICSINTERFACE
2008
13 years 6 months ago
2008
Previous efforts involving picture-based passwords have not focused on maintaining a measurably high level of entropy. Since password systems usually allow user selection of passw...
FGCS
2000
13 years 4 months ago
2000
Conventional encryption technology often requires users to protect a secret key by selecting a password or passphrase. While a good passphrase will only be known to the user, it a...
SG
2010
Springer
13 years 10 months ago
2010
Springer
Hand-drawn pictures differ from ordinary perspective images in that the entire scene is composed of local feature regions each of which is projected individually as seen from its ...
DICTA
2007
13 years 6 months ago
2007
Existing asymmetric encryption algorithms require the storage of the secret private key. Stored keys are often protected by poorly selected user passwords that can either be guess...
CORR
2007
Springer
13 years 4 months ago
2007
Springer
—The paper studies the problem of securely storing biometric passwords, such as fingerprints and irises. With the help of coding theory Juels and Wattenberg derived in 1999 a sc...