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27.10.2017 | Sonderheft 6/2019

Cluster Computing 6/2019

Enhanced secure sharing of PHR’s in cloud using user usage based attribute based encryption and signature with keyword search

Zeitschrift:
Cluster Computing > Sonderheft 6/2019
Autoren:
M. Lilly Florence, Dhina Suresh

Abstract

Cloud based Personal health record (PHR) is an emerging cloud based platform for exchanging a person’s health information in a secure manner. There occur many security issues when records of the data owners are outsourced through the third party cloud providers. The health records which are sensitive must be stored and retrieved through a secure source without any loss in the data. Nevertheless sharing and searching of the data is the key aspect, but when it is outsourced undeniably it is a cumbersome task. It may lead to unveil the sensitive information and so the records may become vulnerable to the hackers. In this report, we have suggested a novel access control structure called as user usage based encryption constructed on the searchable attribute based encryption to guarantee the data protection. Usage is mapped as credential with a time frame to every private attribute. The data user can decipher a fortified attribute only if there is a match between the credentials associated with the attribute. Using the feature extraction algorithm the searchable encryption scheme enables a consistent routing of encrypted attributes. Multi-Credential routing is applied to strengthen the confidentiality of the fragile records. We allow the data user to perpetuate the credentials according to their usage criteria also the user receives the keys as labels along with the credentials. The data owner will be able to associate each enciphered attribute with a set of credentials. Before beginning the encryption scheme we apply the singular value decomposition algorithm to the unutilized or less used attributes to reduce the attribute set. Additionally the data user confidentiality pitfalls are tackled using the semantic clustering of data user. To preserve the data user confidentiality reliable overlay privacy preserving protocol is designed. We manifest a complete security analysis so that our recommended system dominates the up to date approaches in terms of communication and ciphering cost.

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