XACMUT: XACML 2.0 Mutants Generator

Testing of security policies is a critical activity and mutation analysis is an effective approach for measuring the adequacy of a test suite. In this paper, we propose a set of mutation operators addressing specific faults of the XACML 2.0 access control policy and a tool, called XACMUT (XACml MUTation) for creating mutants. The tool generates the set of mutants, provides facilities to run a given test suite on the mutants set and computes the test suite effectiveness in terms of mutation score. The tool includes and enhances the mutation operators of existing security policy mutation approaches.