A Content Protection Scheme for Cloud Clients through Network Coding Technique in Cloud

The real world scenario of cloud is users wish to store massive data in to the cloud database. So, Cloud must store the data without any failure. Sometimes, the data is striped across multiple cloud vendors. If a cloud suffers from a permanent failure and loses all its data, we need to repair the lost data with the help of the other surviving clouds to preserve data redundancy. We present a proxy-based storage system for fault-tolerant multiple-cloud storage with the help of network coding based storage scheme called the functional minimumstorage regenerating (FMSR) codes, which maintain the same fault tolerance and data redundancy as in traditional erasure codes (e.g., RAID-6). One key design feature of our FMSR codes is that we relax the encoding requirement of storage nodes during repair, while preserving the benefits of network coding in repair. With this approach, we may able to safeguard the user’s data from the various vulnerabilities.