12 search results - page 3 / 3 » Attacks and design of image recognition CAPTCHAs |
CHI
2005
ACM
13 years 6 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 ...
SOUPS
2010
ACM
13 years 8 months ago
2010
ACM
Graphical password systems based on the recognition of photographs are candidates to alleviate current over-reliance on alphanumeric passwords and PINs. However, despite being bas...