An efficient multiauthority attribute-based encryption technique for storing personal health record by compressing the attributes

Abstract

Personal health record system allows patient to share their health information in a remote location. Security of the data is an important criterion to be considered while outing the facts in the remote servers. Encryption is the common technique to provide the security for the data before outsourcing. This paper focus on multiauthority attribute-based encryption (MAABE) approaches, by compressing the least value attributes. In all the attribute-based encryption, the attributes are used to encode and decode the data. As the quantity of attributes used increases, the calculation time will be increased for the performance. So, in order to increase the system efficiency, least value attribute details should be compressed before encoding and decoding the information. Also, a binary tree structure is used to administer the attributes in various authority levels of the algorithm. This binary tree structure helps to decrease the encoding and decoding timing of the algorithm.