221 search results - page 14 / 45 » Advantages of User Authentication Using Unclear Images |
SSWMC
2004
13 years 9 months ago
2004
In lossless watermarking, it is possible to completely remove the embedding distortion from the watermarked image and recover an exact copy of the original unwatermarked image. Lo...
ICMCS
2006
IEEE
14 years 2 months ago
2006
IEEE
Although relevance feedback has been extensively studied in content-based image retrieval in the academic area, no commercial web image search engine has employed the idea. There ...
ACSAC
2008
IEEE
13 years 8 months ago
2008
IEEE
Alphanumeric passwords are widely used in computer and network authentication to protect users' privacy. However, it is well known that long, textbased passwords are hard for...
HIP
2005
Springer
14 years 1 months ago
2005
Springer
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...
SOUPS
2009
ACM
14 years 2 months ago
2009
ACM
Abstract: Today, most Internet applications still establish user authentication with traditional text based passwords. Designing a secure as well as a user-friendly password-based ...