1484 search results - page 230 / 297 » Security policies for downgrading |
164
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WPES
2004
ACM
15 years 11 months ago
2004
ACM
The growing popularity of inexpensive, portable recording devices, such as cellular phone cameras and compact digital audio recorders, presents a significant new threat to privac...
147
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ESORICS
2004
Springer
15 years 11 months ago
2004
Springer
We describe an approach to sensor-based authentication that can adapt to accommodate incomplete, unreliable, or inaccurate input provided to the system. Parameterized Authenticatio...
162
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PODC
2003
ACM
15 years 11 months ago
2003
ACM
We propose a new cryptographic primitive called oblivious signaturebased envelope (OSBE). Informally, an OSBE scheme enables a sender to send an envelope (encrypted message) to a ...
157
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SACMAT
2003
ACM
15 years 11 months ago
2003
ACM
This paper presents an approach that uses special purpose RBAC constraints to base certain access control decisions on context information. In our approach a context constraint is...
145
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SACMAT
2003
ACM
15 years 11 months ago
2003
ACM
The Role-Based Access Control (RBAC) model is traditionally used to manually assign users to appropriate roles. When the service-providing enterprise has a massive customer base, ...