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ICASSP
2011
IEEE
12 years 11 months ago
Speaker authentication using video-based lip information
The lip-region can be interpreted as either a genetic or behavioural biometric trait depending on whether static or dynamic information is used. In this paper, we use a texture de...
Budhaditya Goswami, Chi-Ho Chan, Josef Kittler, Wi...
CRYPTO
2003
Springer
98views Cryptology» more  CRYPTO 2003»
14 years 25 days ago
A Message Authentication Code Based on Unimodular Matrix Groups
We present a new construction based on modular groups. A novel element of our construction is to embed each input into a sequence of matrices with determinant ±1, the product of w...
Matthew Cary, Ramarathnam Venkatesan
C5
2007
IEEE
14 years 1 months ago
Syncing Croquet with the Real World
3D virtual environments like Croquet need to be attractive in order to be visited and used. Their attractiveness depends on the level of vitality that the user is able to experien...
Grit Schuster, Christine Strothotte, Carola Zwick
HIP
2005
Springer
208views Cryptology» more  HIP 2005»
14 years 1 months ago
Phish and HIPs: Human Interactive Proofs to Detect Phishing Attacks
In this paper, we propose a new class of Human Interactive Proofs (HIPs) that allow a human to distinguish one computer from another. Unlike traditional HIPs, where the computer is...
Rachna Dhamija, J. D. Tygar
COLCOM
2007
IEEE
13 years 11 months ago
Transparent security for collaborative environments
Current collaborative tools are often not able to profit from existing systems for user management. It is therefore necessary for collaborative systems to administrate their users ...
Eva Hladká, Daniel Kouril, Michal Proch&aac...