Securing Cloud Storage Dual-Server Using Public-Key Encryption with Keyword Search

Abstract

Now a day’s cloud computing has become one of the fascinating domains which was used by almost all MNC and IT companies. Generally this is formed by interconnecting a large number of systems connected all together for remote servers hosted on internet to store, access, retrieve data from remote machines not from local machines. As the cloud server has the capability to store a lot of valuable data on its memory block, a lot of users can connect with the centralized location to access, retrieve and modify the data which is stored on the cloud server. Till now there was no mechanism available to store the data in an encrypted manner in all public clouds and even private clouds. In this proposed work, we mainly try to examine the security level of a well-known cryptographic primitive, namely, public key encryption with keyword search (PEKS) which is very useful in many applications of cloud storage. Unfortunately, the traditional PEKS mainly suffer with a problem like inside keyword guessing attack (KGA) launched by the malicious server. We formalize a new PEKS framework named Dual-Server Public Key Encryption with Keyword Search (DS-PEKS) to address the security vulnerability of PEKS.By conducting various experiments on our proposed approach, we finally, came to an conclusion that our proposed approach is best suited to provide security for the data which is stored inside the cloud server and also to provide secure keyword search for this sensitive data.