Logo eprints

On Secure Implementation of an IHE XUA-Based Protocol for Authenticating Healthcare Professionals

Masi, Massimiliano and Pugliese, Rosario and Tiezzi, Francesco On Secure Implementation of an IHE XUA-Based Protocol for Authenticating Healthcare Professionals. In: Information Systems Security (ICISS 2009). Lecture Notes in Computer Science, 5905 . Springer, pp. 55-70. ISBN 978-3-642-10771-9 (2009)

PDF - Accepted Version
Download (283kB) | Preview


The importance of the Electronic Health Record (EHR) has been addressed in recent years by governments and institutions.Many large scale projects have been funded with the aim to allow healthcare professionals to consult patients data. Properties such as confidentiality, authentication and authorization are the key for the success for these projects. The Integrating the Healthcare Enterprise (IHE) initiative promotes the coordinated use of established standards for authenticated and secure EHR exchanges among clinics and hospitals. In particular, the IHE integration profile named XUA permits to attest user identities by relying on SAML assertions, i.e. XML documents containing authentication statements. In this paper, we provide a formal model for the secure issuance of such an assertion. We first specify the scenario using the process calculus COWS and then analyse it using the model checker CMC. Our analysis reveals a potential flaw in the XUA profile when using a SAML assertion in an unprotected network. We then suggest a solution for this flaw, and model check and implement this solution to show that it is secure and feasible.

Item Type: Book Section
Identification Number: 10.1007/978-3-642-10772-6_6
Additional Information: ©Springer-Verlag Berlin Heidelberg 2009. The original publication is available at www.springerlink.com
Funders: This work has been supported by the EU project Sensoria, IST-2005-016004.
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Research Area: Computer Science and Applications
Depositing User: Users 31 not found.
Date Deposited: 15 Jun 2011 12:52
Last Modified: 11 Jul 2011 14:35
URI: http://eprints.imtlucca.it/id/eprint/406

Actions (login required)

Edit Item Edit Item