Title
Refactoring access control policies for performance improvement
Abstract
In order to facilitate managing authorization, access control architectures are designed to separate the business logic from an access control policy. To determine whether a user can access which resources, a request is formulated from a component, called a Policy Enforcement Point (PEP) located in application code. Given a request, a Policy Decision Point (PDP) evaluates the request against an access control policy and returns its access decision (i.e., permit or deny) to the PEP. With the growth of sensitive information for protection in an application, an access control policy consists of a larger number of rules, which often cause a performance bottleneck. To address this issue, we propose to refactor access control policies for performance improvement by splitting a policy (handled by a single PDP) into its corresponding multiple policies with a smaller number of rules (handled by multiple PDPs). We define seven attribute-set-based splitting criteria to facilitate splitting a policy. We have conducted an evaluation on three subjects of real-life Java systems, each of which interacts with access control policies. Our evaluation results show that (1) our approach preserves the initial architectural model in terms of interaction between the business logic and its corresponding rules in a policy, and (2) our approach enables to substantially reduce request evaluation time for most splitting criteria.
Year
DOI
Venue
2012
10.1145/2188286.2188346
international conference on performance engineering
Keywords
DocType
Citations 
performance improvement,corresponding multiple policy,access decision,attribute-set-based splitting criterion,evaluation result,business logic,policy decision point,access control architecture,refactoring access control policy,splitting criterion,access control policy,request evaluation time,access control,refactoring,performance
Conference
10
PageRank 
References 
Authors
0.56
12
5
Name
Order
Citations
PageRank
Donia El Kateb1444.81
Tejeddine Mouelhi226314.93
Yves Le Traon33922190.39
JeeHyun Hwang41168.03
Tao Xie55978304.97