3015 search results - page 4 / 603 » The robustness of a new CAPTCHA |
CCS
2010
ACM
13 years 7 months ago
2010
ACM
We systematically study the design of image recognition CAPTCHAs (IRCs) in this paper. We first review and examine all IRCs schemes known to us and evaluate each scheme against th...
AINA
2010
IEEE
14 years 19 days 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...
CCS
2010
ACM
13 years 11 months ago
2010
ACM
In this paper, we propose a new form of image-based CAPTCHA we term "scene tagging". It tests the ability to recognize a relationship between multiple objects in an imag...
CRYPTO
2006
Springer
13 years 11 months ago
2006
Springer
We address the issue of encrypting data in local storage using a key that is derived from the user's password. The typical solution in use today is to derive the key from the...
ICPR
2008
IEEE
14 years 2 months ago
2008
IEEE
Object recognition forms a ubiquitous problem in digital image processing. The detection of robust image features of high distinctiveness is one important key in this regard. We p...