Secure healthcare data sharing among federated health information systems

The current trend in designing health information systems is to apply federated architectures to integrate existing systems. This exacerbates the security guarantees that such systems are required to satisfy and demands the introduction of advanced methods to deal with security. This paper aims at describing how federated health information systems can offer security properties by adopting proper mechanisms to protect the exchanged data and the provided functionalities from malicious manipulations. We have experimentally evaluated the costs in terms of performance penalty related to the introduction of security mechanisms within the proposed solution.