Formal modelling and analysis of XML firewall for service-oriented systems Online publication date: Tue, 26-Aug-2008
by Haiping Xu, Mihir Ayachit, Abhinay Reddyreddy
International Journal of Security and Networks (IJSN), Vol. 3, No. 3, 2008
Abstract: Firewalls have been designed as a major component to protect a network or a server from being attacked. However, due to their emphasis on packet filtering rather than verifying user permissions and examining packet contents, conventional firewalls are not suitable for protecting service-oriented systems from unauthorised service invocations. In this paper, we present a formal XML firewall security model for service-oriented systems, which supports user authentication and role-based user authorisation according to policy rules that can be updated dynamically. The formal model consists of two major components, namely the application model and the XML firewall model, which are designed compositionally using coloured Petri nets. We analyse both the application model and the XML firewall model using an existing Petri net tool, and demonstrate how key properties of the formal models can be verified, and how design errors can be detected and corrected at an early design stage.
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Security and Networks (IJSN):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email subs@inderscience.com
Our Blog 
Follow us on Twitter 
Visit us on Facebook