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Type-Based Access Control in Data-Centric Systems

  • Luís Caires
  • Jorge A. Pérez
  • João Costa Seco
  • Hugo Torres Vieira
  • Lúcio Ferrão
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6602)

Abstract

Data-centric multi-user systems, such as web applications, require flexible yet fine-grained data security mechanisms. Such mechanisms are usually enforced by a specially crafted security layer, which adds extra complexity and often leads to error prone coding, easily causing severe security breaches. In this paper, we introduce a programming language approach for enforcing access control policies to data in data-centric programs by static typing. Our development is based on the general concept of refinement type, but extended so as to address realistic and challenging scenarios of permission-based data security, in which policies dynamically depend on the database state, and flexible combinations of column- and row-level protection of data are necessary. We state and prove soundness and safety of our type system, stating that well-typed programs never break the declared data access control policies.

Keywords

Access Control Reduction Rule Access Control Policy Typing Rule Evaluation Context 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Luís Caires
    • 1
  • Jorge A. Pérez
    • 1
  • João Costa Seco
    • 1
  • Hugo Torres Vieira
    • 1
  • Lúcio Ferrão
    • 2
  1. 1.CITI and Departamento de Informática, Faculdade de Ciências e TecnologiaUniversidade Nova de LisboaPortugal
  2. 2.OutSystems SAUSA

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