Type based Keyword Search for Securing Big Data

Big data is an up-to-date attractive research topic and also full of challenges. Sharing massive sensitive personal data in public cloud will arouse large-scale privacy concerns. Data encryption is a widely accepted way to prevent information leakage. However, it is difficult for the users to retrieve desired information from encrypted big data. In this paper, we provide a novel keyword search method to enable customers easily searching keywords from encryption-protection data. Moreover, the encrypted big data could be managed by different type that was assigned by data owner. Moreover, the access right can be delegated to others according to the user's willingness. Security and efficiency analysis are provided to prove the security and efficiency of the scheme.