Download Handbook of Database Security: Applications and Trends by Michael Gertz, Sushil Jajodia PDF

By Michael Gertz, Sushil Jajodia

The guide of Database safeguard: functions & traits, an edited quantity through well known researchers inside of info defense, presents an up to date review of information protection types, options, and architectures in quite a few information administration purposes and settings. This edited quantity represents the main entire paintings on a variety of information defense facets released within the final ten years.

The instruction manual of Database safety: purposes & traits areas a specific concentrate on data-centric protection points that extend past conventional and well-studied information protection points in databases. It additionally covers defense in complex database platforms, facts privateness and belief administration, and knowledge outsourcing, and descriptions instructions for destiny learn in those fields.

The guide of Database defense: functions & traits is designed for a qualified viewers composed of practitioners and researchers in and academia as a reference booklet. This quantity can also be compatible for advanced-level scholars in desktop technological know-how drawn to the state of the art in facts security.

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We now discuss the basic peculiar features that are supported by the existing XML-based access control models. Support for Fine and Coarse Authorizations. The different protection requirements that different documents may have call for the support of access restrictions at the level of each specific document. However, requiring the specification of authorizations for each single document would 36 S. De Capitani di Vimercati, S. Foresti, S. Paraboschi, and P. Samarati make the authorization specification task too heavy.

The access control policy defined by the data owner can be easily represented through a traditional access matrix A, where each cell A[u,r] may assume either the value 1, if u can access r, or the value 0, otherwise (currently only read privileges have been considered). Figure 6 represents an example of access matrix, where there are four users, namely A, B, C, and D, and four resources r1 , r2 , r3 , and r4 . , the set of resources that the user can access). This solution requires each user to keep a possibly great number of Recent Advances in Access Control A B C D r1 1 1 1 0 r2 1 1 0 1 r3 0 0 1 1 19 r4 1 0 0 0 Fig.

In: Proc. of the 1997 ACM International SIGMOD Conference on Management of Data, Tucson, AZ (May 1997) 45. : A logic-based knowledge representation for authorization with delegation. In: Proc. of the 12th IEEE Computer Security Foundations Workshop, Washington, DC, USA (July 1999) 46. : Authorizations in distributed systems: A new approach. Journal of Computer Security 2(2,3) (1993) 107–136 47. : A propositional policy algebra for access control. ACM Transactions on Information and System Security 6(2) (May 2003) 286– 325 48.

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