79 search results - page 10 / 16 » Dynamic access-control policies on XML encrypted data |
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IHI
2012
13 years 5 months ago
2012
Regulations and policies regarding Electronic Health Information (EHI) are increasingly complex. Federal and State policy makers have called for both education to increase stakeho...
SRDS
2003
IEEE
15 years 2 months ago
2003
IEEE
We demonstrate that symmetric-key cryptography can be used for both read and write access control. One-time write access can be granted by handing over an encryption key, and our ...
SIS
2007
14 years 11 months ago
2007
Access control models for XML data can be classified in two major categories: node filtering and query rewriting systems. The first category includes approaches that use access ...
CSCW
1996
ACM
15 years 1 months ago
1996
ACM
Collaborative systems provide a rich but potentially chaotic environment for their users. This paper presents a system that allows users to control collaboration by enacting polic...
PODS
2008
ACM
15 years 9 months ago
2008
ACM
We present a formal framework for capturing the provenance of data appearing in XQuery views of XML. Building on previous work on relations and their (positive) query languages, w...