Enabling Privacy-Preserving and Encrypted Multi-Keyword Similarity Search with Dynamic Access Policy Over Cloud Data

Abstract

Cloud is the promising and upcoming technology in the current scenario, information
Security along with encrypted data search over cloud is another challenging task.. The Cloud
data users need to encrypt the important and efficient data for cloud security. In the current
scenario, the data security and its update policy in the cloud computing is the challenging
task. To solve these kind of issues, Multi Third Party Verifier (MTPV)is used to audit the
cloud user data is proposed. MTPV will monitor integrity and availability of the data in the
cloud. The MTPV generates an alert to cloud user when an unauthorized access or integrity
of data changes occurs. In that case the data owner dynamically update the data access
polycentric Cryptosystem used for data encryption provides more security. In addition, the
Encrypted Multi-keyword Similarity Search is used to search the uploaded encrypted
document using multi keyword. The advantage is that the user can easily get their document
in minimal time and also this approach will search the encrypted document that provides
better security and efficiency.