Cloud computing utilizes networks of substantial gatherings of servers normally running minimal effort shopper PC innovation with particular associations with spread data-processing errands crosswise over them. This common IT framework contains extensive pools of frameworks that are connected together. Frequently, virtualization techniques are utilized to expand the force of Cloud computing. Checking and prompting patients by means of versatile social insurance framework is the present pattern in a therapeutic field that goes about as a lifeline because of its accessibility at whatever time and anyplace. This e-social insurance framework requires patient's private data to be accessible at a cloud, outsourced data stockpiling. This situation confronts privacy issues. In this paper, we concentrate on attribute-based access control and another privacy-preserving scalar product computation (PPSPC) strategy and giving a private cloud to versatile clients to guarantee less cost, compelling and secure capacity. The data entered in the versatile is exchanged to the private cloud, which thus is handled and again exchanged to people in a general cloud. The affect ability of the outsourced cloud data is kept up utilizing Attribute-based Encryption method which restricts data access based on encoding/unscramble of data with its access structures. The data privacy is guaranteed by PRF based key administration and secures indexing methodologies. Individual Health records perceptibility access control to the real data proprietor is the center thought of this venture. The undertaking isolates the access clients into Public Domain Users and Private Domain client

Samunnisa et al.,"Privacy-Preserving Scalar Product Computation over Personal Health Records", International Journal of Computer Engineering In Research Trends Volume 3, Issue 2, February-2016, pp. 42-27