233 search results - page 14 / 47 » CAPTCHA: Using Hard AI Problems for Security |
AAAI
2007
14 years 12 months ago
2007
The reliable authentication of user attributes is an important prerequisite for the security of web based applications. Digital certificates are widely used for that purpose. How...
ACSAC
2005
IEEE
15 years 3 months ago
2005
IEEE
The most common computer authentication method is to use alphanumerical usernames and passwords. This method has been shown to have significant drawbacks. For example, users tend ...
WISEC
2010
ACM
14 years 9 months ago
2010
ACM
Data breaches due to stolen laptops are a major problem. Solutions exist to secure sensitive files on laptops, but are rarely deployed because users view them as inconvenient. Thi...
CEAS
2006
Springer
15 years 1 months ago
2006
Springer
In this paper we detail the use of e-mail social network analysis for the detection of security policy violations on computer systems. We begin by formalizing basic policies that ...
ICTAI
1999
IEEE
15 years 1 months ago
1999
IEEE
Recently, there has been much interest in enhancing purely combinatorial formalisms with numerical information. For example, planning formalisms can be enriched by taking resource...