A HYBRID CIPHERTEXT-POLICY WITH HIERARCHICAL ATTRIBUTE-BASED RING SIGNCRYPTION TO ENHANCE SECURITY AND PRIVACY IN BODY AREA NETWORKS
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Abstract
A Body Area Network (BAN) is a wireless network of health monitoring sensors designed to deliver personalized healthcare. Securing inter sensor communications within BANs is essential for preserving not only the privacy of health data, but also for ensuring safety of healthcare delivery. This paper proposes a cryptosytem for BAN security known as Ciphertext-Policy Hierarchical Attribute-based Ring Signcryption (CP-HARS). Initially, patient’s dataset has been pre-processed with the use of Enhanced Independent Component Analysis (EICA). By analysing the generalization, EICA achieves retrieval performance by operating in a reduced Principal Component Analysis (PCA) space.Then interoperability is defined by semantics and the semantic interoperability among body area sensor networks is used Ant Colony Optimization based Fuzzy Ontology (ACO-FO). The ACO-FO is used to improve the interoperability of BAN system. In a CP-HARS approach, the attributes are arranged in a matrix format, in which the higher level user attributes can be hand over to the users in lower level. An efficient data sharing can be enabled using the features in the larger BAN hierarchical groups, in which the keys are hand over to the number of users in the body area network organization. By non-interactive assumptions, the approach provides evidence to enhance security. The proposed CP-HARS is compared to existing Attribute-based Ring Signcryption Scheme (ARSS) and Elliptic Curve Cryptography with Fuzzy Ontology (ECC with FO) signcryption.
Keywords:Body Area Network (BAN); ciphertext-policy; hierarchical; Attribute-based Ring Signcryption; Enhanced Independent Component Analysis(EICA); Ant Colony Optimization (ACO); Fuzzy Ontology (FO).
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