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ESORICS
2004
Springer

Portable and Flexible Document Access Control Mechanisms

10 years 9 months ago
Portable and Flexible Document Access Control Mechanisms
We present and analyze portable access control mechanisms for large data repositories, in that the customized access policies are stored on a portable device (e.g., a smart card). While there are significant privacy-preservation advantages to the use of smart cards anonymously created and bought in public places (stores, libraries, etc), a major difficulty is that, for huge data repositories and limited-capacity portable storage devices, it is not possible to represent any possible access configuration on the card. For a customer whose card is supposed to contain a subset S of documents, access to all of S must be allowed. In some situations a small enough number of “false positives” (which are accesses to non-S documents) is acceptable to the server, and the challenge then is to minimize the number of false positives implicit to any given card. We describe and analyze schemes for both unstructured and structured collections of documents. For these schemes, we give fast algorithms...
Mikhail J. Atallah, Marina Bykova
Added 01 Jul 2010
Updated 01 Jul 2010
Type Conference
Year 2004
Where ESORICS
Authors Mikhail J. Atallah, Marina Bykova
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