233 search results - page 26 / 47 » CAPTCHA: Using Hard AI Problems for Security |
CCS
2006
ACM
15 years 1 months ago
2006
ACM
Role engineering, the task of defining roles and associating permissions to them, is essential to realize the full benefits of the role-based access control paradigm. Essentially,...
147
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VEE
2012
ACM
13 years 5 months ago
2012
ACM
Time Of Check To Time Of Use (TOCTTOU) race conditions for file accesses in user-space applications are a common problem in Unix-like systems. The mapping between filename and i...
118
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CISC
2005
Springer
15 years 3 months ago
2005
Springer
Abstract. Despite many good (secure) key agreement protocols based on publickey cryptography exist, secure associations between two wireless devices are often established using sym...
WPES
2004
ACM
15 years 3 months ago
2004
ACM
The number of location-aware mobile devices has been rising for several years. As this trend continues, these devices may be able to use their location information to provide inte...
106
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CANS
2011
Springer
13 years 9 months ago
2011
Springer
In this paper, we explore fast algorithms for computing on encrypted polynomials. More specifically, we describe efficient algorithms for computing the Discrete Fourier Transform,...