Role Of Cloud Security in Big Data Processing for Healthcare System

Demand of Big data processing over cloud is in-creasing day by day. Present research work has focused on the role of cloud security in big data processing. The area of re-search is healthcare system where patients are prescribed for the different diseases. Cloud is providing zero downtime, high reliability where information is collected for further processing and provided to user on request. It has been observed that there is several research works that has been made in such fields but there are several issues related to big data security as well as performance issues. There is need to propose a secure and high performance system that should provide security to managed as well as unmanaged big data without influencing its performance. Present research has provided security to health care system big data. However there are many encryption mechanism that could be used to secure the data but these re-search are suffering due to performance issues. After compression operation data is encrypted in blocks of 64 bits each using the block cypher DES, which creates 64 bits of cipher text from 64 bits of plain text. A small number of tiny discrepancies exist between encoding and decrypting with the same method and key. The key is 56 bits long.