Use of Hybrid ECC to enhance Security and Privacy with Data Deduplication

Cloud computing is one of the most growing technologies in recent technological developments. It offers many applications like it can store big data by taking no or little amount of cost. Cloud services offer Infrastructure as a service (IaaS), Software as a service (SaaS) and Platform as a service (PaaS). Cloud computing is also used to take backup for data. Most of the big companies are now moving towards cloud services like google Facebook amazon Flipkart and many more. Day by day data size is being increased and charges are also increasing. Since cloud computing is best known technology it's more vulnerable to get attacked by attackers and data might be hacked or can be monitored or even can be altered over cloud space. This is the main reason why cloud companies need to take responsibility for our data. This is the main challenge for companies to make our data secured and safe over their data centers. This paper has proposed an enhanced hybrid ECC based encryption so that data is stored on the data center in encrypted form so that no one can understand the original content even though it gets monitored overcloud. This paper used CRT (Chinese remainder theorem) for generating a key for elliptical curve cryptography (ECC), and with ECC, this research work has proposed to add extra encryption with arithmetic encryption and after that, the data deduplication checking has been done by using cosine similarity so that no duplicated data is stored on the cloud. Finally, the advantages of our proposed system with known algorithms are discussed.