9 search results - page 2 / 2 » Enhanced CAPTCHAs: Using Animation to Tell Humans and Comput... |
AINA
2010
IEEE
13 years 10 months ago
2010
IEEE
—Text-based password schemes have inherent security and usability problems, leading to the development of graphical password schemes. However, most of these alternate schemes are...
SPW
2005
Springer
13 years 11 months ago
2005
Springer
Abstract. Many users routinely log in to their system with system administrator privileges. This is especially true of home users. The advantage of this setup is that these users c...
IDA
2010
Springer
13 years 10 months ago
2010
Springer
: Rock art, human-made markings on stone, is an important cultural and the earliest expression of abstract thinking. While there are tens of millions of photographs of rock art in ...
CHI
2005
ACM
13 years 7 months ago
2005
ACM
HIPs, or Human Interactive Proofs, are challenges meant to be easily solved by humans, while remaining too hard to be economically solved by computers. HIPs are increasingly used ...