Secure File Storage With Hybrid Cryptographical And Fragmentation System

Abstract

When you are storing data in a public cloud, securing our data becomes a big challenge. Our data will be stored in remote cloud servers. We can access our cloud remotely. In this case, we must obey the provider license agreements. We need to trust the providers blindly. So, it is very important to secure our data with encryption. We are implementing a secure cloud storage system with AES, Triple DES, Blowfish algorithms by applying the fragmentation. The secret agencies can use our systems to share the information. In our project, we have the modules named Administrator, Data Owner, Data User and Cloud Server. The administrator will manage the data owner accounts, data user accounts, file access permissions. The administrator can monitor uploads and downloads. The data owner will upload the files into the system. We are applying double encryption on the file. The generated cipher text is going to be divided into seven fragments. These fragments will upload into the firebase cloud. The user can download the files by requesting the file key. The use will receive the key through email after a request processed by the data owner. If the key is valid the file will be downloaded. While downloading the seven fragments will combine as a single fragment and double description will apply on the file. The plain text will be downloaded as a text file. The cloud can track the uploads and downloads, the cloud can view data owners and data users details