Access Control in Data Management Systems by Elena Ferrari

By Elena Ferrari

Entry keep watch over is among the basic providers that any info administration approach should still offer. Its major aim is to guard info from unauthorized learn and write operations. this is often rather an important in brand new open and interconnected global, the place each one type of details will be simply made on hand to an enormous consumer inhabitants, and the place a harm or misuse of information could have unpredictable outcomes that transcend the limits the place facts live or were generated. This e-book presents an summary of a number of the advancements in entry keep watch over for information administration platforms. Discretionary, crucial, and role-based entry keep an eye on can be mentioned, via surveying the main correct proposals and studying the advantages and downsides of every paradigm in view of the necessities of other software domain names. entry keep an eye on mechanisms supplied through advertisement info administration structures are offered and mentioned. ultimately, the final a part of the ebook is dedicated to dialogue of a few of the main tough and leading edge examine developments within the region of entry keep watch over, reminiscent of these relating to the internet 2.0 revolution or to the Database as a carrier paradigm. This booklet is a worthy reference for an heterogeneous viewers. it may be used as both a longer survey for those that have an interest in entry regulate or as a reference e-book for senior undergraduate or graduate classes in information safety with a unique specialise in entry keep watch over. it's also valuable for technologists, researchers, managers, and builders who need to know extra approximately entry regulate and comparable rising traits.

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2000a] to deal with heterogeneous, distributed systems and with the support for subject and object hierarchies. Different temporal constraints can be specified through the model defined by Atluri and Gal [2002]. The model which has not been defined for the protection of relational DMSs, but rather for information portals, allows one to specify authorizations, based on the temporal attributes associated with data (such as transaction time and valid time). By this model, it is, for instance, possible to implement a policy authorizing a user to read an object one week after it has been written.

We refer the reader to Bertino and Sandhu [2005]; Ferrari and Thuraisingham [2000] for further research results in the context of advanced data management systems. Finally, some of the most recent developments in the field of discretionary access control for advanced applications and new environments will be discussed in Chapter 6. 1 POSITIVE AND NEGATIVE AUTHORIZATIONS Bertino et al. [1997] proposed a new semantics for the revoke operation, and provided the support for negative authorizations.

We refer the reader to Bertino and Sandhu [2005]; Ferrari and Thuraisingham [2000] for further research results in the context of advanced data management systems. Finally, some of the most recent developments in the field of discretionary access control for advanced applications and new environments will be discussed in Chapter 6. 1 POSITIVE AND NEGATIVE AUTHORIZATIONS Bertino et al. [1997] proposed a new semantics for the revoke operation, and provided the support for negative authorizations.

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