St. Xavier's Catholic College of Engineering, India
Cloud data centers play a pivotal role to store data. Cloud data centers should be available and elastic the resources forever to the user. Different data storing techniques are implemented in the distributed systems such as replication (partial, full), erasure code (optimal, near optimal, rate less). If there is any failure to recover the resources from the cloud centers, the replication method is used to achieve high availability and durability of cloud data center. The concern of this replication technology is that, the replica data size is equal to the size of the original data. When the non-stop data center working service is increases, replication and cloud system size also increases. Therefore the storage of cloud system expects more network bandwidth and security. To reduce the number of cloud data centers, Error Detection and correction schemes were used. This paper proposes to encrypt the message using Data Encryption Standard and to encode the message using erasure code before storing the message. At the end of encoding, the encoded messages are saved in cloud data center. So, reconstruction is easy with low bandwidth and low traffic if any data center failure and Storing time is convincingly good in Reed Solomon code when compared with tornado code.
Cloud Data center, Reed Solomon code, Tornado code, Data encryption standards
