Abstract: - In the present-day cloud computing Privatesensitive data service utilization of independent and corporate needs enormouscomputational power and scalability over data storage facilities to encouragebig data utility applications power domains like insurance, public Health Care,and Research and Development areas needs to focus on Security attributes. Anelectronic insurance record or sensitive personal health record orclient-specific personal information needs to get safeguarded from another idthird party uses of the public cloud which could be done by adopting datatransformation schemes. In the domain of cloud computing in which data as aservice place a demanding situations over shared data utilization andinter-access facilities. Data access policies that are been empowered overinsensitive data are being sufficiently scaled up whereas methodologies to interactsensitive information of data providers are to be enhanced to the present day securityrequirements. So user specific sensitive information is to getprivacy-preserving by adopting effective and efficient encryption methodologiesand not encouraging limitations over data utilization strategies which brings agreat reliability and trustworthiness of personal sensitive information.Electronic health records or medical information or personal insurance policyreports or preparatory personal employee information to get maintainedfollowing high level security strategies so as to bring reliability andusability in a more wider boundaries. In order to facilitate a widescalability, attribute based encryption is been adopted facilitating authorizedmethodologies to be performed over integrated security policies in multipleauthority architectural platforms. Infocus of improvising security strategiesby adopting optimal encryption methodologies main bring a overhead are barriergates to search techniques of encrypted data formats.
Keywords:- User data privacy, Encryption,Multi-authority, Forward security, Hashing Functions, Attribute BasedEncryption