Technical Report Details
| Date |
19-3-2004 |
| Number |
DISI-TR-04-02 |
| Title |
Discussing the Issues in Security Policies for Spatial Data and
Discussing the Issues in Security |
| Authors |
Elena Camossi, Sonia Fagorzi and Davide Sobrero |
| Bibtex Entry |
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| E-mail |
sobrero@disi.unige.it |
| Link |
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| Abstract |
In spite of its importance, the secure handling of spatial data has not
been addressed so far. In
this paper we investigate the issues involved by the design of an access control model
for spatial data. Specifically, we design an
access control model to protect a set of maps in vector format, representing the same
geographical area, at the same resolution.
We discuss the issues
related to the overlay operation that can be performed on such maps.
The model is closed, and it combines discretionary and mandatory
characteristics.
Moreover, we propose some alternatives to the design of the model. In
particular, we propose alternative classifications of
spatial information and alternative propagation of grants for composed objects and topological information.
Finally, we sketch how to handle multirepresented entities, i.e.,
spatial information represented in more than one map. |
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