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Empowering Personal Health Records with Cloud
Computing 2Department of
Information and Computer Science,
Aalto University, Finland kaitai.liang@aalto.fi 3Department of
Computer Science, City
University of Hong Kong, Hong Kong duncan@cityu.edu.hk Abstract The issue of
empowering patients to be well informed with regards to their health records has
been well accepted in the community, which is known as the Personal Health
Record (PHR). PHR has been believed as the solution for better management of
an individual's health, and as the tool that will empower the patient in
correlation with healthcare providers through the ability to provide his/her
own medical history. In this work, we aim to take one step further by
equipping patients with the ability to ¡°control¡± the access to their PHR
efficiently and easily, by incorporating the emerging cloud technology.
Specifically, we aim to provide the patients with the luxury of using the
power of the cloud to conduct the outsourced work efficiently. To realize
this, we present the notion of online/offline ciphertext-policy
attribute-based proxy re-encryption scheme, which is very useful primitive in
empowering personal health records in cloud computing. We present such a
notion as well as a set of security requirements. More specifically, we
define two security models covering both outsider and insider attacks.
Furthermore, we present a concrete construction of such a scheme, and prove
that it is secure under the well known complexity
assumptions and following our security models. Keywords: Ciphertext-Policy
Attribute-Based Encryption, Proxy Re-Encryption, +: Corresponding author: Clémentine
Gritti SMART Building, Northfields Ave, Wollongong NSW 2522, AUSTRALIA, Tel: +61-481-345-310 Journal of
Wireless Mobile Networks, Ubiquitous Computing, and Dependable Applications (JoWUA), Vol. 5, No. 4,
pp. 3-28, December 2014 [pdf] |