Download Data and Applications Security XXIII: 23rd Annual IFIP WG by Joachim Biskup, Jens Seiler, Torben Weibert (auth.), Ehud PDF

By Joachim Biskup, Jens Seiler, Torben Weibert (auth.), Ehud Gudes, Jaideep Vaidya (eds.)

ISBN-10: 3642030068

ISBN-13: 9783642030062

This ebook constitutes the refereed complaints of the 23nd Annual IFIP WG 11.3 operating convention on information and purposes safeguard held in Montreal, Canada, in July 2009.

The 18 revised complete papers and four brief papers have been conscientiously reviewed and chosen from forty seven submissions. The papers are geared up in topical sections on database defense; safeguard rules; privateness; intrusion detection and protocols; and relied on computing.

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Read or Download Data and Applications Security XXIII: 23rd Annual IFIP WG 11.3 Working Conference, Montreal, Canada, July 12-15, 2009. Proceedings PDF

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The grant syntax is extended to include a where clause (similar to what might be found in a select statement) and optionally a query-defined user group, in which the grantees are defined by the result set of another query. Optin=’true’ to insuranceGrp. E. Olson et al. Predicated grants do not currently support side-effects, required by policies such as the insurance policy from Table 1 or the Chinese Wall policy from Table 2, so further extensions would be necessary to implement them. One possibility might be simply to use UDFs, as our implementation does.

The question is how should the hierarchy be constructed when assembling the overall tree forest? Either a new root node is created, ‘Disrupt Servers’ where both ‘Disrupt Web Server’ and ‘Disrupt Firewall’ are treated as disjoint siblings or the ‘Disrupt Firewall’ tree becomes a sub-node of the ‘Firewall-1’ node within the ‘Disrupt Web Server’ threat tree. The language provided by threat trees is not rich enough to state explicitly that the former sibling approach should be adopted with the inclusion of a dependency relationship that links the two trees together.

However, we have argued that under certain reasonable conditions, such code can be analyzed to prevent undesirable side-effects [16]. One workaround for executing side-effects in SQL Server is to execute it from within a Common Language Runtime (CLR) function, which can then be registered as an external function within the SQL Server database. This workaround is not an ideal solution; it is considered an egregious hack [14] that requires a separate connection to the database, which adversely affects performance.

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