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  1. Proceedings of the third ACM SIGPLAN workshop on Programming languages and analysis for security (PLAS '08)
  2. Resource bound analysis for database queries
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Simulating midlet's security claims with automata modulo theory
A compiler-based infrastructure for software-protection
Resource bound analysis for database queries
Information flow security of multi-threaded distributed programs
Aspect-oriented in-lined reference monitors
A security domain model to assess software for exploitable covert channels
Evaluating the cost reduction of static code analysis for software security
Securing nonintrusive web encryption through information flow
Verified enforcement of stateful information release policies
Static path conditions for Java
A type system for data-flow integrity on windows vista
Lagrange multipliers and maximum information leakage in different observational models
Dominator-tree analysis for distributed authorization

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Resource bound analysis for database queries

Content Provider ACM Digital Library
Author Cheney, James Dahl, Morten
Abstract Many scientific disciplines, such as biology and astronomy, are now collecting large amounts of raw data systematically and storing it centrally in relational databases for shared use by their communities. In many cases such systems accept arbitrary SQL queries submitted using a Web form. Typical database management systems do not provide support for enforcing resource access control policies to guard against expensive or pointless queries submitted accidentally by legitimate users or intentionally by attackers. Instead, such systems typically employ timeouts to halt queries that do not terminate within a reasonable period of time. This approach can limit misuse but cannot prevent it; moreover, it does not provide useful feedback for legitimate users whose queries exceed the time limit. In this paper, we study a language-based technique for bounding the time and space resource usage of database queries. We introduce a cost semantics for a simple core database query language, define a type-based analysis for estimating an upper bound on the asymptotic running time of a query, and prove its soundness. We also discuss a prototype implementation which we have used to analyze typical SQL queries submitted to the SDSS SkyServer astronomical database.
Starting Page 67
Ending Page 78
Page Count 12
File Format PDF
ISBN 9781595939364
DOI 10.1145/1375696.1375706
Language English
Publisher Association for Computing Machinery (ACM)
Publisher Date 2008-06-07
Publisher Place New York
Access Restriction Subscribed
Subject Keyword Databases Query languages Resource bounds
Content Type Text
Resource Type Article
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