  Due to the increasing complexity of distributed systems, security testing is
becoming increasingly critical in insuring reliability of such systems in
relation to their security requirements. . To challenge this issue, we rely in
this paper1 on model based active testing. In this paper we propose a framework
to specify security policies and test their implementation. Our framework makes
it possible to automatically generate test sequences, in order to validate the
conformance of a security policy. This framework contains several new methods
to ease the test case generation. To demonstrate the reliability of our
framework, we present a Vehicular Networks System as an ongoing case study.

Cryptography and Security;Software Engineering