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167
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CCS
2007
ACM
16 years 22 days ago
2007
ACM
In recent years, web applications have become tremendously popular, and nowadays they are routinely used in security-critical environments, such as medical, financial, and milita...
177
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CCS
2007
ACM
16 years 22 days ago
2007
ACM
In defining large, complex access control policies, one would like to compose sub-policies, perhaps authored by different organizations, into a single global policy. Existing po...
177
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CCS
2007
ACM
16 years 22 days ago
2007
ACM
Computer usage and threat models have changed drastically since the advent of access control systems in the 1960s. Instead of multiple users sharing a single file system, each us...
223
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WPES
2006
ACM
16 years 15 days ago
2006
ACM
Many applications of mix networks such as anonymous Web browsing require relationship anonymity: it should be hard for the attacker to determine who is communicating with whom. Co...
178
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CCS
2005
ACM
16 years 3 days ago
2005
ACM
We present a formal model and a simple architecture for robust pseudorandom generation that ensures resilience in the face of an observer with partial knowledge/control of the gen...