Against Spyware Using CAPTCHA in Graphical Password Scheme.

Liming Wang Xiuling Chang Zhongjie Ren Haichang Gao Xiyang Liu Uwe Aickelin

Published in: AINA (2010)

Keyphrases

graphical password
user authentication
similarity measure
multiresolution
image processing
information security
biometric systems
computer security
security analysis
authentication protocol