REVIEW ON PRIVACY PRESERVING DATA ANALYTICS USING CRYPTOGRAPHIC TECHNIQUE FOR LARGE DATA SET

Abstract

Security is one of the major concerns in information technology industry. It becomes more crucial very it comes at end of data. Nowadays, data has become the centric point of all industry and all are moving around data only. Subsequently, trend of IT is also changed and they focused more on data value rather than services. Morally, large data volume is generated with different variety and high velocity. Due to public and open behaviors security has become one of the major concerns in hadoop framework. system. Hadoop is becoming so popular because of its big data storage. Hadoop system is designed without any security so security is the major concern in hadoop. Thus, in this paper we will be discussing about the core problem which is security in HDFS. As it works as the storage of large data so security is becoming the major weakness in hadoop development. Hadoop has file system to store data, Hadoop Distributed File System (HDFS) and Map Reduce are the file system of hadoop in which it stores large data. With the increase in popularity of hadoop, there is also a demand in trend for more and more security. Without any security model the sensitive data stored in hadoop is not secure. Also a new trend is rising for the encryption of stored data to prevent the confidentiality of data. Over the period of past few years an attempt have been made to achieve some level of security in Hadoop by using data encryption technique. In this paper all the attempts have been done to describe and prevent the data security in HDFS.