1663 search results - page 247 / 333 » Privacy and Identity Management |
114
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CCS
2010
ACM
15 years 7 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...
151
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CCS
2010
ACM
15 years 7 months ago
2010
ACM
Cloud computing has emerged as a multi-tenant resource sharing platform, which allows different service providers to deliver software as services in an economical way. However, fo...
102
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NSDI
2007
15 years 6 months ago
2007
Access control misconfigurations are widespread and can result in damaging breaches of confidentiality. This paper presents TightLip, a privacy management system that helps user...
132
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CCS
2008
ACM
15 years 6 months ago
2008
ACM
Pervasive computing environments have created a requirement for spatial- and temporal-aware access control systems. Although temporal, spatial and spatio-temporal role-based acces...
129
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CCS
2008
ACM
15 years 6 months ago
2008
ACM
A practically feasible modification to fixed-priority schedulers allows to avoid timing channels despite threads having access to precise clocks. This modification is rather simpl...